阅读说明：本技术 显示面板及其制备方法、显示装置 (Display panel, preparation method thereof and display device ) 是由 张笑 黄华 朱小研 于 2021-09-17 设计创作，主要内容包括：本公开实施例提供一种显示面板及其制备方法、显示装置,该显示面板包括：相对设置的第一基板和第二基板、位于所述第一基板与所述第二基板之间的墨水结构层、位于所述第一基板的靠近所述墨水结构层的一侧的第一反射结构层以及位于所述第一反射结构层的靠近所述第一基板的一侧的第二反射结构层,其中,所述第一反射结构层包括：多个透镜结构,相邻的所述透镜结构之间形成有间隙；所述第二反射结构层包括：多个反射结构,所述多个反射结构在所述第一基板的正投影与所述间隙在所述第一基板的正投影至少部分重叠,所述反射结构,被配置为将入射至所述反射结构的光朝向所述第二反射结构层远离所述墨水结构层的方向反射。(The embodiment of the disclosure provides a display panel, a preparation method thereof and a display device, wherein the display panel comprises: the ink jet recording device comprises a first substrate, a second substrate, an ink structure layer, a first reflection structure layer and a second reflection structure layer, wherein the first substrate and the second substrate are arranged oppositely, the ink structure layer is arranged between the first substrate and the second substrate, the first reflection structure layer is arranged on one side, close to the ink structure layer, of the first substrate, the second reflection structure layer is arranged on one side, close to the first substrate, of the first reflection structure layer, and the first reflection structure layer comprises: a plurality of lens structures, a gap being formed between adjacent ones of the lens structures; the second reflective structure layer includes: a plurality of reflective structures, an orthographic projection of the plurality of reflective structures on the first substrate at least partially overlapping an orthographic projection of the gap on the first substrate, the reflective structures configured to reflect light incident to the reflective structures toward the second reflective structure layer away from the ink structure layer.)

1. A display panel, comprising: a first substrate and a second substrate which are oppositely arranged, an ink structure layer positioned between the first substrate and the second substrate, a first reflection structure layer positioned at one side of the first substrate close to the ink structure layer and a second reflection structure layer positioned at one side of the first reflection structure layer close to the first substrate, wherein,

the first reflective structure layer includes: a plurality of lens structures, a gap being formed between adjacent ones of the lens structures;

the second reflective structure layer includes: a plurality of reflective structures, an orthographic projection of the plurality of reflective structures on the first substrate at least partially overlapping an orthographic projection of the gap on the first substrate, the reflective structures configured to reflect light incident to the reflective structures toward the second reflective structure layer away from the ink structure layer.

2. The display panel of claim 1, wherein the ink structure layer comprises: a plurality of pixel units, at least one of the plurality of pixel units comprising: a plurality of ink units, wherein,

the ink unit includes: a liquid and charged light-absorbing particles located in the liquid; alternatively, the first and second electrodes may be,

the ink unit includes: the liquid and the charged light absorption particles, the charged reflective particles and the uncharged reflective particles which are positioned in the liquid, wherein the uncharged reflective particles in different ink units in the same pixel unit have different colors; alternatively, the first and second electrodes may be,

the ink unit includes: the liquid, the charged light absorption particles and the charged light reflection particles are located in the liquid, and the liquid in different ink units in the same pixel unit has different colors and can reflect light rays with different colors.

3. A display panel as claimed in claim 2 characterized in that the charged light-absorbing particles comprise: black particles, the charged light reflecting particles comprising: transparent particles, the uncharged light reflecting particles comprising: any one of red neutral particles, green neutral particles and blue neutral particles.

4. The display panel of claim 2 wherein the color of the liquid in each ink cell is the same as the color of the uncharged light-reflecting particles.

5. The display panel according to any one of claims 1 to 4, wherein the material of the reflective structure is white oil or white glue.

6. The display panel according to any one of claims 1 to 4, wherein the reflective structure has a reflectivity of 80% or more.

7. The display panel according to any one of claims 1 to 4, wherein the thickness of the reflective structure is between 2 μm and 50 μm in the thickness direction of the display panel.

8. The display panel according to any one of claims 2 to 4, characterized by further comprising: a pixel defining layer between the first substrate and the second substrate, the pixel defining layer comprising: a plurality of retaining walls configured to define a plurality of the ink units.

9. A display panel as claimed in any one of claims 2 to 4 characterized in that each lenticular structure comprises: the liquid lens comprises a lens, a first electrode and a dielectric layer which are sequentially stacked, wherein the refractive index of the dielectric layer is larger than that of the liquid.

10. The display panel of claim 9, wherein the second reflective structure layer further comprises: a planarization layer covering the plurality of reflective structures, wherein a refractive index of the planarization layer is the same as a refractive index of the lens, or a material of the planarization layer is the same as a material of the lens.

11. The display panel according to claim 10, wherein the thickness of the planarization layer is between 5 μm and 80 μm in the thickness direction of the display panel.

12. A display panel as claimed in any one of claims 1 to 4 wherein the lenticular structure meets any one or more of the following parameters:

the diameter of the lens structure is between 5 and 50 μm;

the arch height of the lens structure is between 5 and 30 mu m; and the number of the first and second groups,

the refractive index of the lens structure is between 1.6 and 2.3.

13. The display panel according to any one of claims 1 to 4, wherein the lens structure has a shape of any one of a part of a sphere, a part of an ellipsoid, and a part of a cone.

14. A production method of a display panel according to any one of claims 1 to 13, comprising:

providing a first substrate and a second substrate;

forming a second reflecting structure layer and a first reflecting structure layer on the first substrate in sequence;

and aligning the first substrate and the second substrate, and forming an ink structure layer between the first substrate and the second substrate.

15. A display device, comprising: the display panel of any one of claims 1 to 13.

Technical Field

The embodiment of the disclosure relates to but is not limited to the technical field of display, and in particular relates to a display panel, a preparation method thereof and a display device.

Background

Currently, display devices can be classified into three types, i.e., a transmissive display device, a reflective display device, and a transflective display device, according to the type of light source (e.g., backlight or ambient light) used by the display device. Compared with other types of display devices, the reflective display device has a device structure capable of displaying by using external ambient light, and has the advantages of simple structure, low cost, small driving voltage, low power consumption, small damage to eyes and the like, so that the reflective display device is widely concerned and applied. However, the reflective display devices in some technologies have problems of low reflectivity and low display brightness when displaying.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

In a first aspect, an embodiment of the present disclosure provides a display panel, including: the ink jet recording device comprises a first substrate, a second substrate, an ink structure layer, a first reflection structure layer and a second reflection structure layer, wherein the first substrate and the second substrate are arranged oppositely, the ink structure layer is arranged between the first substrate and the second substrate, the first reflection structure layer is arranged on one side, close to the ink structure layer, of the first substrate, the second reflection structure layer is arranged on one side, close to the first substrate, of the first reflection structure layer, and the first reflection structure layer comprises: a plurality of lens structures, a gap being formed between adjacent ones of the lens structures; the second reflective structure layer includes: a plurality of reflective structures, an orthographic projection of the plurality of reflective structures on the first substrate at least partially overlapping an orthographic projection of the gap on the first substrate, the reflective structures configured to reflect light incident to the reflective structures toward the second reflective structure layer away from the ink structure layer.

In a second aspect, an embodiment of the present disclosure provides a method for manufacturing a display panel, where the display panel is the display panel described in the foregoing embodiment, and the method includes: providing a first substrate and a second substrate; forming a second reflecting structure layer and a first reflecting structure layer on the first substrate in sequence; and aligning the first substrate and the second substrate, and forming an ink structure layer between the first substrate and the second substrate.

In a third aspect, an embodiment of the present disclosure provides a display device, including: the display panel described in the above embodiments.

According to the display panel, the preparation method thereof and the display device provided by the embodiment of the disclosure, because the orthographic projection of the plurality of reflection structures in the second reflection structure layer on the first substrate is at least partially overlapped with the orthographic projection of the plurality of lens structures in the first reflection structure layer, and the reflection structures can reflect the light incident to the reflection structures towards the direction that the second reflection structure layer is far away from the ink structure layer, when bright-state display is realized, the incident light can be prevented from directly entering the ink structure layer from the gaps among the plurality of lens structures and being absorbed by black particles, so that the reflectivity of the display panel can be improved, further, the display brightness of the display panel can be improved, and the display quality of the display panel is improved.

Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. Other advantages of the disclosure may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.

Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.

Drawings

The accompanying drawings are included to provide an understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure. The shapes and sizes of the various elements in the drawings are not to be considered as true proportions, but are merely intended to illustrate the present disclosure.

FIG. 1A is a schematic diagram of a reflective display device for displaying bright state;

FIG. 1B is a schematic diagram of a reflective display device for displaying gray scale states;

FIG. 1C is a schematic diagram of a reflective display device showing a dark state;

FIG. 1D is a schematic diagram of an arrangement of lens structures in a reflective display device;

FIG. 1E is another schematic diagram of an arrangement of lens structures in a reflective display device;

fig. 2 is a schematic structural diagram of a first display panel in an exemplary embodiment of the disclosure;

FIG. 3 is a schematic representation of the reflectance of different color organic dyes in exemplary embodiments of the present disclosure;

fig. 4A is a schematic structural diagram of a second display panel in an exemplary embodiment of the disclosure when bright state display is implemented;

FIG. 4B is a schematic structural diagram illustrating a second display panel in an exemplary embodiment of the disclosure when displaying in a gray scale state;

fig. 4C is a schematic structural diagram of a second display panel in an exemplary embodiment of the disclosure when dark state display is implemented;

fig. 5A is a schematic structural diagram of a third display panel in an exemplary embodiment of the disclosure when bright-state display is implemented;

FIG. 5B is a schematic structural diagram illustrating a third display panel according to an exemplary embodiment of the disclosure when displaying in a gray scale state;

fig. 5C is a schematic structural diagram of a third display panel in an exemplary embodiment of the disclosure when dark state display is implemented;

fig. 6 is a schematic structural diagram of a fourth display panel in an exemplary embodiment of the present disclosure;

fig. 7A is a schematic structural diagram of a fifth display panel in an exemplary embodiment of the disclosure when bright state display is implemented;

FIG. 7B is a schematic structural diagram illustrating a fifth display panel according to an exemplary embodiment of the disclosure when displaying in a gray scale state;

fig. 7C is a schematic structural diagram of a fifth display panel in an exemplary embodiment of the disclosure when dark state display is implemented;

FIG. 8A is a schematic cross-sectional view after forming a reflective structure in an exemplary embodiment of the present disclosure;

FIG. 8B is a schematic plan view of a reflective structure after formation in an exemplary embodiment of the disclosure;

FIG. 8C is another schematic plan view after forming a reflective structure in an exemplary embodiment of the present disclosure;

FIG. 9 is a schematic cross-sectional view after forming a second reflective structure layer in an exemplary embodiment of the present disclosure;

FIG. 10A is a schematic cross-sectional view after forming a first reflective structure layer in an exemplary embodiment of the disclosure;

FIG. 10B is a schematic plan view of a first reflective structure layer after formation in an exemplary embodiment of the disclosure;

FIG. 10C is another schematic plan view after forming a first reflective structure layer in an exemplary embodiment of the disclosure;

fig. 11 is a schematic cross-sectional view after forming a retaining wall in an exemplary embodiment of the present disclosure.

Detailed Description

Various embodiments are described herein, but the description is intended to be exemplary, rather than limiting and many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the exemplary embodiments, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.

In describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps herein, the method or process should not be limited to the particular sequence of steps. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present disclosure.

In the drawings of the present disclosure, the size of each constituent element, the thickness of a layer, or a region is exaggerated for clarity in some cases. Therefore, one mode of the present disclosure is not necessarily limited to the dimensions, and the shape and size of each component in the drawings do not reflect a true scale. Further, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shapes, numerical values, and the like shown in the drawings.

In the exemplary embodiments of the present disclosure, ordinal numbers such as "first", "second", or "third" are provided to avoid confusion of constituent elements, and are not limited in number.

In the exemplary embodiments of the present disclosure, the terms indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner" or "outer" are used for convenience to explain the positional relationship of the constituent elements with reference to the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element has a specific orientation, is configured and operated in a specific orientation, and thus, is not to be construed as limiting the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which each constituent element is described. Therefore, the words described in the specification are not limited to the words described in the specification, and may be replaced as appropriate.

In the exemplary embodiments of the present disclosure, the terms "mounted," "connected," or "connected" are to be construed broadly unless otherwise explicitly specified or limited. For example, it may be a fixed connection, or a removable connection, or an integral connection; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening components, or both may be interconnected. The meaning of the above terms in the present disclosure can be practically understood by those of ordinary skill in the art.

In this specification, a transistor refers to an element including at least three terminals, i.e., a gate electrode (which may also be referred to as a gate or a control electrode), a drain electrode (which may also be referred to as a drain electrode terminal, a drain region, or a drain), and a source electrode (which may also be referred to as a source electrode terminal, a source region, or a source). The transistor has a channel region between a drain electrode and a source electrode, and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, a channel region refers to a region where current mainly flows.

In this specification, in order to distinguish two poles of a transistor except for a control pole, one of them is directly described as a first pole, and the other is a second pole, where the first pole may be a drain electrode and the second pole may be a source electrode, or the first pole may be a source electrode and the second pole may be a drain electrode. In the case of using transistors of opposite polarities, or in the case of changing the direction of current flow during circuit operation, the functions of the "source electrode" and the "drain electrode" may be interchanged. Therefore, in this specification, "source electrode" and "drain electrode" may be exchanged with each other.

The transistors in the embodiments of the present disclosure may be Thin Film Transistors (TFTs) or Field Effect Transistors (FETs), or other devices with the same characteristics. For example, the thin film transistor used in the embodiments of the present disclosure may include, but is not limited to, an Oxide transistor (Oxide TFT), a Low Temperature polysilicon thin film transistor (LTPS TFT), or the like. For example, the thin film transistor may be a thin film transistor of a bottom gate structure or a thin film transistor of a top gate structure as long as a switching function can be achieved. Here, the embodiment of the present disclosure does not limit this.

"about" in the disclosed embodiments refers to a numerical value that is not narrowly defined, but is within the tolerances allowed for the process and measurement.

In the embodiments of the present disclosure, "sequentially stacked" means that a plurality of film layers are stacked in one direction, but does not mean that the film layers are attached to each other two by two.

In the embodiment of the present disclosure, the first direction DR1 may refer to a thickness direction of the display panel, a direction perpendicular to a plane of the display panel, or the like. The second direction DR2 may refer to a horizontal direction or an extending direction of the scan signal line, etc. The third direction DR3 may refer to a vertical direction or an extending direction of the data signal line, etc. The first direction DR1 intersects the second direction DR2, and the third direction DR3 intersects the second direction DR 2. For example, the first direction DR1 and the second direction DR2 may be perpendicular to each other, and the third direction DR3 and the second direction DR2 may be perpendicular to each other.

The reflective display device is a device structure capable of displaying by using external ambient light, and has the advantages of simple structure, low cost, small driving voltage, low power consumption, small damage to eyes and the like. For example, the reflective display device may include: clear-ink (CID) reflective display device, wherein the operating principle of the CID reflective display device may be: by applying voltage to the electrodes in the reflective display device, the charged black particles (which may also be referred to as black ink particles or black microsphere particles) in the ink structure layer are controlled to move to the side opposite to the display side, and at this time, bright state display can be realized by utilizing the total reflection phenomenon realized by the high refractive index of the dielectric layer and the low refractive index of the liquid (which may also be referred to as ink) in the ink structure layer; by applying voltage to the electrode in the reflective display device, the charged black particles in the ink structure layer are controlled to move in the liquid and attach to the surface of the dielectric layer on the display side, so that the light incident from the dielectric layer can be directly absorbed by the black particles, and dark state display can be realized; gray scale state display can be achieved by applying a voltage to the electrodes in the reflective display device, controlling the charged black particles in the ink structure layer to move in the liquid, and adjusting the number of black particles attached to the surface of the dielectric layer on the display side. Here, the total reflection phenomenon refers to a phenomenon that when light is emitted from the optically dense medium (n1) to the optically sparse medium (n2), refracted light does not appear in the optically sparse medium due to a refraction angle of 90 degrees or more, and a corresponding incident angle when the refraction angle is 90 degrees is defined as a critical angle.

Fig. 1A is a schematic structural view of a reflective display device for realizing bright state display, fig. 1B is a schematic structural view of a reflective display device for realizing gray-scale state display, fig. 1C is a schematic structural view of a reflective display device for realizing dark state display, fig. 1D is a schematic structural view of an arrangement manner of lens structures in a reflective display device, and fig. 1E is another schematic structural view of an arrangement manner of lens structures in a reflective display device. Here, fig. 1A to 1E illustrate an example in which the lens structure is a hemispherical structure. Fig. 1A to 1C are schematic cross-sectional views along AA'.

As shown in fig. 1A to 1C, the reflective display device may include: the liquid crystal display device includes an Array (Array) substrate 11 and a Color Filter (CF) substrate 12 which are arranged oppositely, a plurality of retaining walls 13 arranged between the Array substrate 11 and the Color Filter substrate 12, ink 14 (including black particles) filled between the Array substrate 11 and the Color Filter substrate 12, and a plurality of lens structures which are arranged on one side of the Color Filter substrate 12 close to the Array substrate 11 and are arranged periodically. Each lens structure may include: the liquid crystal display panel comprises a lens 15 arranged on one side of the color film substrate 12 close to the array substrate 11, a first electrode 16 arranged on one side of the lens 15 close to the array substrate 11, and a dielectric layer 17 arranged on one side of the first electrode 16 close to the array substrate 11. Color filter substrate 12 may include: an opposite substrate 121, and a color film layer 122 and a Black Matrix (BM) 123 disposed on a side of the opposite substrate 121 close to the array substrate 11. For example, the color film layer 122 may include: the color filter comprises a red (R) color filter unit, a green (G) color filter unit and a blue (B) color filter unit which are arranged periodically. The array substrate 11 may include: the liquid crystal display device includes an array substrate 111, a driving circuit layer 112 disposed on a side of the array substrate 111 close to the color filter substrate 12, and a second electrode 113 disposed on the driving circuit layer 112 close to the color filter substrate 12. For example, the driving circuit layer 112 of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. For example, the second electrode 113 may be connected to the drain electrode of the driving transistor through a via hole.

The display principle of the reflective display device will be explained below.

For example, as shown in fig. 1A, when a black particle repelling voltage is applied to the first electrode 16 and a black particle attracting voltage is applied to the second electrode 113, due to the voltage, the black particles in the ink 14 may migrate in a direction away from the color filter substrate 12 (i.e., in a direction opposite to the first direction DR1), and since the refractive index of the dielectric layer 17 is greater than the refractive index of the ink 14, a total reflection phenomenon may occur at least on an interface between the dielectric layer 17 and the ink 14 for light incident from the color filter substrate 12, and the reflected light exits from the color filter substrate 12 along the first direction DR1 and is absorbed and recognized by eyes of a user, so that bright state display of the reflective display may be implemented.

For example, as shown in fig. 1B, when the first electrode 16 applies a black particle attraction voltage and the second electrode 113 applies a black particle repulsion voltage, the black particles in the ink 14 may migrate toward the color filter substrate 12 (i.e., along the first direction DR1) due to the voltage. Here, by controlling the magnitude of the voltage applied to the first electrode 16 and the second electrode 113, the number of black particles attached to the surface of the dielectric layer 17 on the side close to the ink 14 is adjusted, and the number of light absorbed by the black particles is controlled, thereby achieving adjustment of different gray levels. At this time, some of the reflected light escapes, and the reflected light exits from the color filter substrate 12 along the first direction DR1 to be absorbed and recognized by the eyes of the user, so that the display of different gray-scale states of the reflective display can be realized.

For example, as shown in fig. 1C, when the first electrode 16 applies a black particle attraction voltage and the second electrode 113 applies a black particle repulsion voltage, the black particles in the ink 14 may migrate toward the color filter substrate 12 (i.e., along the first direction DR1) due to the voltage. Here, by controlling the magnitude of the voltage applied to the first electrode 16 and the second electrode 113, the number of the black particles attached to the surface of the dielectric layer 17 on the side close to the ink 14 is adjusted, so that the black particles in the ink 14 are adsorbed to the surface of the dielectric layer 17 on the side close to the ink 14, and since the refractive index of the dielectric layer 17 is smaller than that of the black particles, the total reflection condition is broken, so that at least when the light incident from the first substrate 21 of the reflective display is on the interface between the dielectric layer 17 and the ink 14, although the light can pass through the dielectric layer 17, the light is directly absorbed by the black particles in the ink 14 after escaping from the dielectric layer 17, and at this time, no reflected light escapes, and the dark state display of the reflective display can be realized.

The research of the inventor of the present disclosure also finds that: as shown in fig. 1D and 1E, since the shape of the lens structure (the shape of the lens) generally takes a hemispherical shape, a certain gap may exist between two adjacent lens structures in the BB 'direction and in the CC' direction. In this way, during bright state display, part of incident light (for example, ambient light) may directly enter the ink 14 from the gap between the plurality of lens structures, and be absorbed by the black particles in the ink 14, which may reduce the reflectivity of the reflective display device, reduce the display brightness of the reflective display device, and further reduce the display quality of the reflective display device.

At least one exemplary embodiment of the present disclosure provides a display panel. Fig. 2 is a schematic structural diagram of a display panel in an exemplary embodiment of the disclosure, where the plurality of lens structures 24 may be arranged as shown in fig. 1D or fig. 1E, and a cross section along the BB 'direction or CC' direction may be illustrated in fig. 2 as an example.

As shown in fig. 2, the display panel may include: the liquid crystal display panel comprises a first substrate 21 and a second substrate 22 which are oppositely arranged, an ink structure layer 23 positioned between the first substrate 21 and the second substrate 22, a first reflection structure layer positioned on one side of the first substrate 21 close to the ink structure layer 23, and a second reflection structure layer 25 positioned on one side of the first reflection structure layer close to the first substrate 21. Wherein the first reflective structure layer may include: a plurality of lens structures 24, with gaps formed between adjacent lens structures 24; the second reflective structure layer 25 may include: a plurality of reflective structures 251, an orthogonal projection of the plurality of reflective structures 251 on the first substrate 21 and an orthogonal projection of the gap on the first substrate 21 at least partially overlap, the reflective structures 251 configured to reflect light incident to the reflective structures 251 toward a direction (i.e., the first direction DR1) in which the second reflective structure layer 25 is away from the ink structure layer 23.

Thus, according to the display panel provided by the exemplary embodiment of the disclosure, since the orthographic projection of the plurality of reflective structures in the second reflective structure layer on the first substrate is at least partially overlapped with the orthographic projection of the plurality of lens structures in the first reflective structure layer, and the reflective structures can reflect the light incident to the reflective structures towards the direction in which the second reflective structure layer is far away from the ink structure layer, when bright-state display is realized, incident light (for example, ambient light) can be prevented from being directly incident into the ink structure layer from the gaps between the plurality of lens structures and being absorbed by black particles, so that the reflectivity of the display panel can be improved, further, the display brightness of the display panel can be improved, and the display quality of the display panel can be improved.

In one exemplary embodiment, the ink structure layer may include: a plurality of pixel units, at least one pixel unit of the plurality of pixel units may include: a plurality of ink units.

In one exemplary embodiment, each of the ink units in at least one of the plurality of pixel units may include: a liquid and charged light-absorbing particles located in the liquid.

In one exemplary embodiment, each of the ink units in at least one of the plurality of pixel units may include: the liquid and the charged light absorbing particles, the charged light reflecting particles and the uncharged light reflecting particles which are located in the liquid, wherein the uncharged light reflecting particles in different ink units in the same pixel unit have different colors. Therefore, the color reflective display is realized by the uncharged reflective particles with various colors, and a color film layer is not required to be arranged. Therefore, the transmittance of the display panel provided by the exemplary embodiment of the disclosure can be improved by 1 time when color display is realized, compared with a reflective display device provided with a color film layer, because the color film layer is not required to be arranged, light can be absorbed in the ink unit only once. Moreover, the reflectivity of the display panel can be improved to a certain extent by arranging the second reflecting structure layer. Therefore, the reflectivity of the display panel can be effectively improved, the display brightness of the display panel during color display can be improved, and the display quality of the display panel is improved. Moreover, as the color film layer is not required to be manufactured, the whole process flow is simpler, and the manufacturing cost can be reduced.

In one exemplary embodiment, at least one ink unit of the plurality of pixel units may include: the liquid, the charged light absorption particles and the charged light reflection particles are located in the liquid, wherein the liquid in different ink units in the same pixel unit has different colors and can reflect light rays with different colors. Therefore, different colors are arranged in different ink units in the same pixel unit, and liquid capable of reflecting light rays of different colors can realize color reflection display, so that a color film layer is not required to be arranged, and colored uncharged reflective particles are not required to be arranged. Therefore, compared with a reflective display device provided with a color film layer, the display panel provided by the exemplary embodiment of the present disclosure may improve transmittance by 1 time when color display is implemented. Moreover, the reflectivity of the display panel can be improved to a certain extent by arranging the second reflecting structure layer. Therefore, the reflectivity of the display panel can be effectively improved, the display brightness of the display panel during color display can be improved, and the display quality of the display panel is improved. Moreover, as the color film layer is not required to be manufactured, the whole process flow is simpler, and the manufacturing cost can be reduced.

In one exemplary embodiment, the charged light-absorbing particles may include: black particles. Among them, the black particles may have two characteristics as follows: (1) the electric charge is sensitive to voltage or an electric field, and can move rapidly under the action of the electric field or the voltage; (2) has the ability to absorb light. Of course, other characteristics may also be provided, and the embodiment of the present disclosure is not limited thereto.

In an exemplary embodiment, the shape of the black particles may include, but is not limited to, micro-particles that are spherical.

In one exemplary embodiment, the black particles may have a diameter of about 10nm (nanometers) to 5 μm (micrometers). For example, the diameter of the black particles may be between about 10nm and 200nm, for example, the diameter of the black particles may be about 10nm, 20nm, 30nm, 40nm, 50nm, 60nm, 70nm, 80nm, 90nm, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, or 200nm, etc. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the black particles have a refractive index greater than that of the dielectric layer. In this way, when the black particles are attached to the surface of the dielectric layer, the total reflection condition between the dielectric layer and the liquid in the ink unit can be broken.

In one exemplary embodiment, the material of the black particles may include, but is not limited to, carbon black. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the charged reflective particles may include: transparent particles. Among them, the transparent particles may have two characteristics as follows: (1) the electric charge is sensitive to voltage or an electric field, and can move rapidly under the action of the electric field or the voltage; (2) has the capability of reflecting light. Of course, other characteristics may also be provided, and the embodiment of the present disclosure is not limited thereto.

In one exemplary embodiment, the transparent particles and the black particles may have different charges. For example, the black particles may have a positive charge and the transparent particles may have a negative charge. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the transparent particles may be spherical microparticles in shape.

In one exemplary embodiment, the diameter of the transparent particles may be between about 10nm and 5 μm. For example, the diameter of the transparent particles may be between about 10nm and 200nm, for example, the diameter of the transparent particles may be about 10nm, 20nm, 30nm, 40nm, 50nm, 60nm, 70nm, 80nm, 90nm, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, or 200nm, etc. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the transparent particles have a refractive index greater than a refractive index of the dielectric layer. As such, when the transparent particles are attached to the surface of the dielectric layer, the total reflection condition between the dielectric layer and the liquid in the ink unit can be broken.

In one exemplary embodiment, the refractive index of the transparent particles and the refractive index of the black particles may be equal.

In one exemplary embodiment, the material of the transparent particles may include, but is not limited to: organic resin or polymer. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the uncharged light reflecting particles may include, but are not limited to, colored neutral particles such as red neutral particles, green neutral particles, or blue neutral particles. For example, the uncharged reflective particles in different ink units in the same pixel unit may include: any one of red neutral particles, green neutral particles and blue neutral particles, and the colors are different. Among them, neutral particles can have two characteristics as follows: (1) the black particles are not charged, are not sensitive to voltage or electric field, do not move under the action of the electric field or voltage, and do not influence the migration of the black particles and the transparent particles; (2) has the capability of reflecting light and scattering the light out. Of course, other characteristics may also be provided, and the embodiment of the present disclosure is not limited thereto.

In one exemplary embodiment, the neutral particles may be spherical microparticles in shape.

In one exemplary embodiment, the diameter of the neutral particles may be between about 10nm and 5 μm. For example, the diameter of the neutral particles may be between about 10nm and 200nm, for example, the diameter of the neutral particles may be about 10nm, 20nm, 30nm, 40nm, 50nm, 60nm, 70nm, 80nm, 90nm, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, or 200nm, etc. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the material of the neutral particles may include, but is not limited to: powder pigments such as blue powder pigments, green powder pigments, and red powder pigments. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the liquid in the ink unit may be a transparent liquid. For example, the transparent liquid may be a liquid ink or the like. Alternatively, the liquid in the ink unit may be a color liquid, and for example, the color liquid may be an organic dye, a pigment, or the like. Here, the embodiment of the present disclosure does not limit this.

The organic dye may be a material that can be dissolved in a solvent (e.g., water or other solvents, etc.), and is a solution. For example, as shown in fig. 3, the horizontal axis represents the wavelength of light in nm (nanometers) and the vertical axis represents the reflectance of the organic dye in% (percent), and in fig. 3, the reflectance of organic dyes of different colors is illustrated with respect to the wavelength of light by taking red (R) organic dye, green (G) organic dye, and blue (B) organic dye as examples.

The pigment may be a dispersion of a type of particles dispersed in a solvent (e.g., water or other solvent, etc.), among others.

Further, the liquid in the ink unit may include some additives other than the above-listed particles, for example, the additives may be a charge control agent, a dispersant, a refractive index adjuster, or the like.

In one exemplary embodiment, the refractive index of the liquid in the ink cell may be between about 1.3 and 1.59. For example, the refractive index of the liquid in the ink cell may be about 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.59, or the like. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, taking the liquid in the ink units as a colored liquid as an example, the color of the liquid in each ink unit and the color of the uncharged light-reflecting particles may be the same.

In one exemplary embodiment, at least one pixel unit of the plurality of pixel units may include: for example, the red (R), green (G), and blue (B) sub-pixels may include: a red ink cell, a green ink cell, and a blue ink cell. Alternatively, at least one of the plurality of pixel units may include: for example, the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white (W) sub-pixel, the plurality of pixel units may include: a red ink cell, a green ink cell, a blue ink cell, and a white ink cell.

In an exemplary embodiment, taking the liquid in the ink unit as a transparent liquid as an example, the red ink unit may include: a transparent liquid and red neutral particles, the green ink element may include: a transparent liquid and green neutral particles, and the blue ink element may include: a transparent liquid and blue neutral particles. Alternatively, taking the color of the liquid in the ink unit as the same as the color of the uncharged light-reflecting particles, the red ink unit may include: red liquid and red neutral particles, the green ink unit may include: green liquid and green neutral particles, the blue ink element may include: blue liquid and blue neutral particles.

In an exemplary embodiment, the ink structure layer may be prepared using a Drop Filling (ODF) process or an inkjet printing process. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, as shown in fig. 2, a surface of the lens structure 24 close to the second substrate 22 is a curved surface protruding toward a direction close to the second substrate 22, and the curved surface is a part of a spherical surface or a part of an ellipsoid.

In an exemplary embodiment, the shape of the lens structure may include, but is not limited to, any one of a portion of a sphere, a portion of an ellipsoid, and a portion of a cone. For example, as shown in FIG. 2, the lens structure 24 may be hemispherical in shape. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, the refractive index of the lens structure may be between about 1.6 and 2.3. For example, the refractive index of the lens structure may be about 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, or the like. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, as shown in fig. 2, each lens structure 24 may include: a lens 15, a first electrode 16, and a dielectric layer 17, which are stacked in this order, wherein a refractive index of the dielectric layer 17 is larger than a refractive index of liquid in the ink unit, and a refractive index of the dielectric layer 17 is smaller than a refractive index of the black particles, and a refractive index of the dielectric layer 17 is smaller than a refractive index of the transparent particles. Thus, when the black particles or the transparent particles are attached to the surface of the dielectric layer 17, the condition that the interface between the dielectric layer 17 and the liquid in the ink unit is totally reflected can be broken; when the black particles and the transparent particles are not attached to the surface of the dielectric layer 17, the interface between the dielectric layer 17 and the liquid in the ink cell may satisfy the condition that the total reflection phenomenon occurs.

In an exemplary embodiment, as shown in fig. 2, the lens 15 may be made of a transparent material, so that the transmittance of the display panel is higher. For example, as shown in fig. 2, one surface of the transparent lens 15 adjacent to the second substrate 22 is a curved surface. For example, the curved surface may be prepared by a nano-imprinting process or a photolithography process. For example, as shown in fig. 2, the surface of the lens 15 close to the second substrate 22 may be a curved surface convex toward the direction close to the second substrate 22. For example, the curved surface may be a portion of a spherical surface (e.g., a sphere or an ellipsoid). For example, the curved surface may be a hemispherical curved surface. Of course, the curved surface of the lens 15 may have other shapes, and may be set according to the thickness requirement of the display panel (e.g., the distance between the light incident surface of the first substrate 21 and the reflective surface of the dielectric layer 17). Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, the material of the lens 15 may be a transparent inorganic material or an organic material, for example, the organic material forming the lens 15 may include at least one of polystyrene and acrylic, the inorganic material forming the lens 15 may include at least one of silicon dioxide, silicon oxynitride, and silicon nitride (SiO), and the lens 15 may be formed of a titanium dioxide material. Of course, other materials may be used as long as they have a refractive index of 1.6 to 2.3, a transparent characteristic, and a certain hardness, for example, a material having a refractive index equal to or substantially equal to that of the dielectric layer 17. Here, the embodiment of the present disclosure does not limit this. As shown in fig. 2, the refractive index of the lens 15 and the refractive index of the first electrode 16 may be the same as or substantially the same as the refractive index of the dielectric layer 17, so that the propagation direction of light entering from the first substrate 21 side is substantially unchanged when the light passes through the lens 15 and then passes through the first electrode 16 and the dielectric layer 17.

In an exemplary embodiment, the lens 15 may be prepared using a thermal reflow process or an imprinting process. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the material of the Dielectric layer (Dielectric) may be a transparent Dielectric material. For example, the dielectric material forming the dielectric layer may include, but is not limited to, silicon oxide (SiO), silicon nitride, or hafnium oxide (HfO2), among others. Of course, other materials may be used as long as they have a refractive index of 1.6 to 2.3, a transparent characteristic and a certain hardness, for example, a material having a refractive index equal to or substantially equal to that of the lens 15.

In an exemplary embodiment, the dielectric Layer may be formed by a Plasma Enhanced Chemical Vapor Deposition (PECVD) or Atomic Layer Deposition (ALD) process. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the diameter D of the lens structure 24 may be between about 5 μm and 50 μm, as shown in FIG. 2. For example, the diameter D of the lens structure may be about 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, or 50 μm, etc. Here, the embodiment of the present disclosure does not limit this. Wherein the diameter D of the lens structure refers to a dimension characteristic of the bottom surface of the lens structure along the second direction DR 2.

In one exemplary embodiment, as shown in FIG. 2, the lens structure 24 may have a vault height h of between about 5 μm and about 30 μm. For example, the vault height h of the lens structure may be about 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, or 30 μm, etc. Wherein the vault height h of the lens structure may refer to a dimensional characteristic of the lens structure along the first direction DR 1.

In an exemplary embodiment, the surface shape of the lens in the lens structure may be any one of a spherical surface, an aspherical surface, a fresnel surface, or a free-form surface, or the surface shape of the lens structure may be a center-to-edge surface shape or a complex lens with gradually changed radius, and the like, and the embodiment of the disclosure is not limited thereto.

In one exemplary embodiment, the reflective structure may be made of a high-reflectivity material. For example, the material of the reflective structure may include, but is not limited to: white oil or white gum. Therefore, the white oil or white glue structure with higher reflectivity is added into the gap between the lens structures, so that the reflectivity of the whole sub-pixel can be improved in a large proportion, and the reflection brightness in a bright state is further improved.

In one exemplary embodiment, the reflective structure may be a single layer structure or a multi-layer structure. For example, the reflective structure may be a single layer structure of a material having high reflectivity such as white oil or white glue. Alternatively, the reflective structure may be a multilayer structure of Ag (silver) films. Thus, the light rays entering the reflecting structure can be reflected, and a high-brightness light emitting effect is obtained.

In an exemplary embodiment, the reflective structure may have a reflectivity greater than or equal to 80%, for example, the reflective structure is made of white oil or white glue. Therefore, the reflectivity of the lens structure can be about 30% to 70% when the total reflection phenomenon occurs, and then, the reflectivity of the whole sub-pixel can be improved in a large proportion because the reflection structure with higher reflectivity is added in the gap between the lens structures, so that the reflection brightness in a bright state is improved.

In an exemplary embodiment, the thickness of the reflective structure may be about 2 μm to 50 μm in the thickness direction of the display panel (i.e., the first direction DR 1). For example, the reflective structure may have a thickness of about 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, or 50 μm, or the like. Here, the embodiment of the present disclosure does not limit this. For example, the thickness of the reflective structure may be about 5 μm, so that a thicker planarization layer can be avoided for planarization, and the color shift problem caused by the longer optical path of the ambient light on the whole first substrate can be avoided. Further, the display effect can be improved.

In an exemplary embodiment, as shown in fig. 2, the second reflective structure layer 25 may further include: a planarization layer 252 covering the plurality of reflective structures 251, wherein the refractive index of the planarization layer 252 is the same as the refractive index of the lens 15, or the material of the planarization layer 252 is the same as the material of the lens 15.

In one exemplary embodiment, the thickness of the planarization layer may be about 5 μm to 80 μm in the thickness direction of the display panel (i.e., the first direction DR 1). For example, the planarization layer can have a thickness of about 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 60 μm, 70 μm, 80 μm, or the like. Here, the embodiment of the present disclosure does not limit this.

For example, the thickness of the planarization layer may be a thickness capable of planarizing the reflective structure (e.g., a white oil or white glue structure). For example, the thickness of the reflective structure may be about 5 μm, and correspondingly, the thickness of the planarization layer may be about 10 μm. In this way, the planarization process can be performed by using a planarization layer with a relatively low thickness, and thus, the color shift problem caused by the fact that the optical path of the ambient light on the whole first substrate is lengthened can be avoided. Further, the display effect can be improved.

In an exemplary embodiment, the number of the reflective structures corresponding to different ink units (i.e., sub-pixels) can be adjusted according to the display effect and the requirements of the display panel for reflectivity and contrast. For example, a reflective structure (e.g., a white oil structure or a white glue structure) may be selectively disposed at a position corresponding to a portion of the gap. For example, after the display panel is manufactured, if the overall display color is green, the number of the reflective structures corresponding to the green ink units can be reduced during the preparation of the reflective structures, so as to reduce the brightness of the green sub-pixels, thereby optimally adjusting the image chromaticity of the display panel.

For example, taking a 6-inch reflective display device as an example, the length of the 6-inch reflective display device may be about 121.9mm (mm), the width may be about 91.4mm, and the diameter D of the lens structure may be about 10 μm, then the number of closely arranged lens structures is 12190 × 9140, the area ratio of the lens structures is about 78.5% in the entire 6-inch reflective display device, the area ratio of the reflective structure (e.g., white oil or white glue) is about 1-78.5% — 21.5% in the entire 6-inch reflective display device, the reflectance ratio of the lens structure at the time of total reflection is about 60%, and the reflectance ratio of the reflective structure (e.g., white oil or white glue) at the time of total reflection is about 80%, then the reflectance ratio of the reflectance when the reflective structure is not provided to the reflectance when the reflective structure is provided may be about (78.5% × 60%): (78.5% × 60% + 21.5% × 80%): 1.365, that is, the reflectivity of the display device provided with the reflective structure provided by the exemplary embodiment of the present disclosure may be improved by about 36.5% compared to the display device provided with the reflective structure.

In an exemplary embodiment, as shown in fig. 2, the display panel may further include: a pixel defining layer between the first and second substrates 21 and 22, the pixel defining layer may include: a plurality of barriers 13, the plurality of barriers 13 being configured to define a plurality of ink units.

In an exemplary embodiment, the material of the retaining wall may be an insulating material, such as polyimide, resin (e.g., any one of acrylic resin and epoxy resin), silicon dioxide (SiO2), silicon nitride, silicon oxynitride, or the like. Thus, the first electrode and the second electrode can be prevented from being conducted. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, the material of the retaining wall may be a light blocking material, so that color cross-talk between adjacent ink units may be avoided.

In one exemplary embodiment, the second substrate may be an array substrate. For example, the array substrate may include: the array substrate, set up the drive circuit layer that is close to first base plate one side and set up the second electrode that is close to first base plate one side at the drive circuit layer. For example, the driving circuit layer of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. For example, the second electrode may be connected to the drain electrode of the driving transistor through a via hole.

In one exemplary embodiment, for example, the material of the array substrate may include a resin. For example, the material of the array substrate may be one of Polydimethylsiloxane (PEMS), polyethylene terephthalate (PET), and Polyimide (PI).

In an exemplary embodiment, the first substrate may be an opposite substrate without a color film layer, or the first substrate may be a color film substrate with a color film layer. Here, the embodiment of the present disclosure does not limit this.

In one exemplary embodiment, the first substrate may further include: and the scattering film is arranged on the side of the opposite substrate far away from the second substrate. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, the opposite substrate may be a transparent substrate, for example, a glass substrate, and thus, the light transmittance of the reflective display device may be made higher.

In an exemplary embodiment, the first electrode may be disposed on a side of the lens close to the second substrate, or may be disposed on a side of the first substrate far from the second substrate. For example, as shown in fig. 2, by disposing the first electrode 16 on the side of the lens 15 away from the first substrate 21, i.e., on the side close to the second electrode (not shown), power consumption when a voltage is applied to the first electrode 16 and the second electrode to form an electric field can be reduced. In the following description, the first electrode 16 is disposed on the side of the lens 15 away from the first substrate 21.

In one exemplary embodiment, the first electrode and the second electrode may include: one or more of a monolithic electrode and a plurality of bulk electrodes. For example, the first electrode and the second electrode may be both monolithic electrodes, and thus, when a voltage is applied to the first electrode and the second electrode, accurate regulation of light is achieved through accurate regulation of the black particles and the transparent particles. For example, the different voltages make the voltage difference between the first electrode and the second electrode different, so that the migration speeds of the black particles and the transparent particles are different, thereby realizing different display grayscales.

In one exemplary embodiment, the first electrode and the second electrode may be transparent electrodes made of the same material. For example, the transparent electrode may be made of a transparent conductive Oxide material such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), and the like. For example, the first electrode and the second electrode may be formed using an ITO material, and thus, the light transmittance of the reflective display device may be made higher.

In one exemplary embodiment, when the luminance of the ambient light is large, the light incident from the first substrate side of the display panel may be the ambient light, and at this time, the ambient light functions as a light source for display.

The following description will be made, with reference to the accompanying drawings, of a display panel provided in an embodiment of the present disclosure, by taking the first substrate as an opposite substrate without a color film layer, and taking the first substrate as an example, where the liquid in different ink units in the same pixel unit can reflect different color light.

Fig. 4A is a schematic structural diagram of a second display panel in an exemplary embodiment of the disclosure when bright state display is implemented, fig. 4B is a schematic structural diagram of a second display panel in an exemplary embodiment of the disclosure when gray-scale state display is implemented, and fig. 4C is a schematic structural diagram of a second display panel in an exemplary embodiment of the disclosure when dark state display is implemented. Wherein, in fig. 4A to 4C, at least one of the plurality of pixel units in the display panel includes three ink units, including: the first ink unit 23-1, the second ink unit 23-2, and the third ink unit 23-3, wherein the liquids in the first ink unit 23-1, the second ink unit 23-2, and the third ink unit 23-3 have different colors, respectively, and can reflect light of different colors. The filling of different patterns in different ink cells in fig. 4A to 4C illustrates that the different ink cells have different colors of liquid.

In an exemplary embodiment, as shown in fig. 4A to 4C, the display panel may include: the liquid crystal display panel comprises a first substrate 21 and a second substrate 22 which are oppositely arranged, an ink structure layer 23 positioned between the first substrate 21 and the second substrate 22, a first reflection structure layer positioned on one side of the first substrate 21 close to the ink structure layer 23, and a second reflection structure layer 25 positioned on one side of the first reflection structure layer close to the first substrate 21. For example, as shown in fig. 4A to 4C, the ink structure layer 23 may include: a plurality of pixel units, at least one of the plurality of pixel units may include: the first ink unit 23-1 emitting light of a first color, the second ink unit 23-2 emitting light of a second color, and the third ink unit 23-3 emitting light of a third color, which are different colors, the first ink unit 23-1 may include: the first color liquid and the charged black particles 234 and the charged transparent particles 235 in the first color liquid, and the second ink unit 23-2 may include: the second color liquid and the charged black particles 234 and the charged transparent particles 235 in the second color liquid, and the third ink unit 23-3 may include: a third color liquid and charged black particles 234 and charged transparent particles 235 located in the third color liquid. The first color liquid may have a characteristic of reflecting light of the first color, the second color liquid may have a characteristic of reflecting light of the second color, and the third color liquid may have a characteristic of reflecting light of the third color.

In an exemplary embodiment, the first color, the second color, and the third color may be one of red, green, and blue, and different from each other. For example, the first color liquid, the second color liquid, and the third color liquid may be one of a red liquid, a green liquid, and a blue liquid, respectively, and may be different from each other. So, the liquid through setting up multiple different colours combines to realize colored reflective display with first reflective structure layer, can need not to set up various rete. Therefore, the light can be absorbed in the ink unit only once because the color film layer is not required to be arranged. Therefore, compared with a reflective display device provided with a color film layer, the display panel provided by the exemplary embodiment of the present disclosure may improve transmittance by 1 time when color display is implemented. Therefore, the reflectivity of the display panel can be improved, and further, the display brightness of the display panel during color display can be improved, and the display quality of the display panel is improved. Moreover, as the color film layer is not required to be manufactured, the whole process flow is simpler, and the manufacturing cost can be reduced.

In one exemplary embodiment, the liquids in the first, second, and third ink units 23-1, 23-2, and 23-3 may all be organic dyes.

In an exemplary embodiment, as shown in fig. 4A to 4C, the first substrate 21 may be an opposite substrate without a color film layer, and the opposite substrate may include: an opposite substrate. For example, the counter substrate may be a transparent substrate, such as a glass substrate, and thus, the light transmittance of the reflective display device may be made higher.

In one exemplary embodiment, as shown in fig. 4A to 4C, the second substrate 22 may include: the liquid crystal display device includes an array substrate 111, a driving circuit layer 112 disposed on a side of the array substrate 111 close to the first base plate 21, and a second electrode 113 disposed on a side of the driving circuit layer 112 close to the first base plate 21. For example, the driving circuit layer 112 of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. For example, the second electrode 113 may be connected to the drain electrode of the driving transistor through a via hole.

In one exemplary embodiment, as shown in fig. 4A to 4C, the first reflective structure layer may include: a plurality of lens structures 24, with gaps formed between adjacent lens structures 24.

In one exemplary embodiment, as shown in fig. 4A to 4C, the second reflective structure layer 25 may include: a plurality of reflective structures 251, an orthographic projection of the plurality of reflective structures 251 on the first substrate 21 and an orthographic projection of the gap on the first substrate 21 at least partially overlap. Therefore, the reflection structure with higher reflectivity is added in the gap between the lens structures, so that the reflectivity of the whole sub-pixel can be improved in a large proportion, and the reflection brightness in a bright state is further improved.

The display principle of the display panel will be described below with reference to fig. 4A to 4C.

For example, as shown in fig. 4A, when the black particle repulsive voltage and the transparent particle repulsive voltage are applied to the first electrode 16 and the black particle attractive voltage and the transparent particle attractive voltage are applied to the second electrode 113, the black particles 234 and the transparent particles 235 in the ink cell may migrate toward a direction away from the first substrate 21 (i.e., the direction opposite to the first direction DR1) due to the voltage, at least a light ray (e.g., an ambient light ray) incident from the first substrate 21 may be totally reflected at an interface between the dielectric layer 17 and the liquid in the ink cell because the refractive index of the dielectric layer 17 is greater than that of the liquid in the ink cell, and the reflected light ray may exit from the first substrate 21 in the first direction DR1 to be absorbed and recognized by the eyes of the user, so that the bright state display of the reflective display may be realized.

For example, as shown in fig. 4B, when the black particle repulsive voltage and the transparent particle attractive voltage are applied to the first electrode 16 and the black particle attractive voltage and the transparent particle repulsive voltage are applied to the second electrode 113, the black particles 234 in the ink unit may migrate toward the direction away from the first substrate 21 (i.e., the direction opposite to the first direction DR1) and the transparent particles 235 in the ink unit may migrate toward the direction close to the first substrate 21 (i.e., along the first direction DR1) due to the voltages. Since the refractive index of the dielectric layer 17 is smaller than the refractive index of the transparent particles 235, the total reflection condition is broken, so that at least when the light incident from the first substrate 21 of the reflective display is on the interface between the dielectric layer 17 and the liquid in the ink cell, the light can directly enter the color liquid (e.g., the first color liquid, the second color liquid, and the third color liquid) in the ink cell through the dielectric layer 17 and be reflected by the color liquid (e.g., the first color liquid, the second color liquid, and the third color liquid) in the ink cell, at this time, the reflected light with different colors is scattered, and the reflected light exits from the first substrate 21 along the first direction DR1 and is absorbed and recognized by the eyes of the user, so that color display with different gray scale states can be realized. Here, the number of the transparent particles 235 attached to the surface of the dielectric layer 17 on the side close to the one body can be adjusted by controlling the magnitude of the voltage applied to the first electrode 16 and the second electrode 113, and thereby, the number of light rays reflected by the color liquids (including the first color liquid, the second color liquid, and the third color liquid) can be controlled, and thereby, adjustment of different colors and different gray scales can be realized.

For example, as shown in fig. 4C, when the black particle attracting voltage and the transparent particle repelling voltage are applied to the first electrode 16 and the black particle repelling voltage and the transparent particle attracting voltage are applied to the second electrode 113, the black particles 234 in the ink cell can migrate toward the first substrate 21 (i.e., along the first direction DR1) and the transparent particles 235 in the ink cell can migrate toward the first substrate 21 (i.e., along the direction opposite to the first direction DR1) due to the voltage, so that the black particles in the ink cell are adsorbed to the surface of the dielectric layer 17 on the side close to the ink cell, and since the refractive index of the dielectric layer 17 is smaller than that of the black particles 234, the total reflection condition is broken, so that at least the light incident from the first substrate 21 of the reflective display is on the interface between the dielectric layer 17 and the liquid in the ink cell, although light can pass through the dielectric layer 17, the light can be directly absorbed by the black particles 234 in the liquid in the ink unit after escaping from the dielectric layer 17, and no reflected light escapes, so that the dark state display of the reflective display can be realized. Here, by controlling the magnitude of the voltage applied to the first electrode 16 and the second electrode 113, the number of black particles attached to the surface of the dielectric layer 17 on the side close to the ink unit is adjusted.

As can be seen from the foregoing, on one hand, the display panel provided in the exemplary embodiment of the present disclosure realizes color reflective display by disposing the liquid having different colors and capable of reflecting light rays of different colors in different ink units in the same pixel unit, so that a color film layer is not required to be disposed, and compared with a reflective display device provided with a color film layer, the transmittance of the display panel provided in the exemplary embodiment of the present disclosure can be increased by 1 time when color display is realized. On the other hand, the reflectivity of the display panel can be improved to a certain extent by arranging the second reflecting structure layer. Therefore, the display panel provided by the exemplary embodiment of the disclosure can effectively improve the reflectivity of the display panel, and further, can improve the display brightness of the display panel during color display, and improve the display quality of the display panel. Moreover, as the color film layer is not required to be manufactured, the whole process flow is simpler, and the manufacturing cost can be reduced. While in some reflective display devices (for example, the reflective display devices shown in fig. 1A and 1B) in the prior art, when color display is implemented, an incident light (for example, an external ambient light) incident from a side of the color filter substrate 12 away from the array substrate 11 needs to pass through the color film layer 122 twice to be reflected from the side of the color filter substrate 12 away from the array substrate 11, that is, the light is absorbed by the color film layer 122 twice, so that the reflectivity of the reflective display device is low, and is only less than 20%.

The following description will be made with reference to the accompanying drawings, taking the first substrate as an opposite substrate without a color film layer, and taking the uncharged reflective particles in different ink units in the same pixel unit as examples, where the uncharged reflective particles have different colors.

Fig. 5A is a schematic structural diagram of a third display panel in an exemplary embodiment of the disclosure when bright state display is implemented, fig. 5B is a schematic structural diagram of the third display panel in the exemplary embodiment of the disclosure when gray-state display is implemented, and fig. 5C is a schematic structural diagram of the third display panel in the exemplary embodiment of the disclosure when dark state display is implemented. Wherein, in fig. 5A to 5C, at least one of the plurality of pixel units in the display panel includes three ink units, including: the first ink unit 23-1, the second ink unit 23-2, and the third ink unit 23-3 are illustrated as examples.

In an exemplary embodiment, as shown in fig. 5A to 5C, the display panel may include: the liquid crystal display panel comprises a first substrate 21 and a second substrate 22 which are oppositely arranged, an ink structure layer 23 positioned between the first substrate 21 and the second substrate 22, a first reflection structure layer positioned on one side of the first substrate 21 close to the ink structure layer 23, and a second reflection structure layer 25 positioned on one side of the first reflection structure layer close to the first substrate 21. For example, as shown in fig. 5A to 5C, the ink structure layer 23 may include: a plurality of pixel units, at least one of the plurality of pixel units may include: the first ink unit 23-1 emitting light of a first color, the second ink unit 23-2 emitting light of a second color, and the third ink unit 23-3 emitting light of a third color, which are different colors, the first ink unit 23-1 may include: a liquid (not shown in the figure) and charged black particles 234, charged transparent particles 235 and uncharged first color neutral particles 231 in the liquid, and the second ink unit 23-2 may include: a liquid (not shown in the figure) and charged black particles 234, charged transparent particles 235 and uncharged second color neutral particles 232 in the liquid, and the third ink unit 23-3 may include: a liquid (not shown in the figure) and charged black particles 234, charged transparent particles 235 and uncharged third color neutral particles 233 located in the liquid.

In an exemplary embodiment, the first color, the second color, and the third color may be one of red, green, and blue, and different from each other. For example, the first color neutral particles 231, the second color neutral particles 232, and the third color neutral particles 233 may be any one of red neutral particles, green neutral particles, and blue neutral particles, respectively, and may be different from each other. Therefore, the color reflective display is realized by combining the ink units with different colors and the first reflective structure layer, and the color film layer is not required to be arranged. Therefore, the light can be absorbed in the ink unit only once because the color film layer is not required to be arranged. Therefore, compared with a reflective display device provided with a color film layer, the display panel provided by the exemplary embodiment of the present disclosure may improve transmittance by 1 time when color display is implemented. Therefore, the reflectivity of the display panel can be improved, and further, the display brightness of the display panel during color display can be improved, and the display quality of the display panel is improved. Moreover, as the color film layer is not required to be manufactured, the whole process flow is simpler, and the manufacturing cost can be reduced.

In one exemplary embodiment, as shown in fig. 5A to 5C, the liquids in the first, second, and third ink units 23-1, 23-2, and 23-3 may all be transparent liquids. Alternatively, as shown in FIG. 6, the liquids in the first, second, and third ink units 23-1, 23-2, and 23-3 may have different colors, wherein the filling of different patterns in the different ink units in FIG. 6 indicates that the liquids in the different ink units have different colors. For example, the color of the liquid in the first ink cell 23-1 may be the same as the color of the first color neutral particles 231, the color of the liquid in the second ink cell 23-2 may be the same as the color of the second color neutral particles 232, and the color of the liquid in the third ink cell 23-3 may be the same as the color of the third color neutral particles 233. Here, the embodiment of the present disclosure does not limit this.

In an exemplary embodiment, as shown in fig. 5A to 5C, the first substrate 21 may be an opposite substrate without a color film layer, and the opposite substrate may include: an opposite substrate. For example, the counter substrate may be a transparent substrate, such as a glass substrate, and thus, the light transmittance of the reflective display device may be made higher.

In one exemplary embodiment, as shown in fig. 5A to 5C, the second substrate 22 may include: the liquid crystal display device includes an array substrate 111, a driving circuit layer 112 disposed on a side of the array substrate 111 close to the first base plate 21, and a second electrode 113 disposed on a side of the driving circuit layer 112 close to the first base plate 21. For example, the driving circuit layer 112 of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. For example, the second electrode 113 may be connected to the drain electrode of the driving transistor through a via hole.

In one exemplary embodiment, as shown in fig. 5A to 5C, the first reflective structure layer may include: a plurality of lens structures 24, with gaps formed between adjacent lens structures 24.

In one exemplary embodiment, as shown in fig. 5A to 5C, the second reflective structure layer 25 may include: a plurality of reflective structures 251, an orthographic projection of the plurality of reflective structures 251 on the first substrate 21 and an orthographic projection of the gap on the first substrate 21 at least partially overlap. Therefore, the reflection structure with higher reflectivity is added in the gap between the lens structures, so that the reflectivity of the whole sub-pixel can be improved in a large proportion, and the reflection brightness in a bright state is further improved.

The display principle of the display panel will be described below with reference to fig. 5A to 5C.

For example, as shown in fig. 5A, when the black particle repelling voltage and the transparent particle repelling voltage are applied to the first electrode 16 and the black particle attracting voltage and the transparent particle attracting voltage are applied to the second electrode 113, the black particles 234 and the transparent particles 235 in the ink cell may migrate toward a direction away from the first substrate 21 (i.e., the direction opposite to the first direction DR1) due to the voltage, at least the light incident from the first substrate 21 may be totally reflected at the interface between the dielectric layer 17 and the liquid in the ink cell because the refractive index of the dielectric layer 17 is greater than the refractive index of the liquid in the ink cell, and the reflected light exits from the first substrate 21 in the first direction DR1 to be absorbed and recognized by the eyes of the user, so that the bright state display of the reflective display may be realized.

For example, as shown in fig. 5B, when the black particle repulsive voltage and the transparent particle attractive voltage are applied to the first electrode 16 and the black particle attractive voltage and the transparent particle repulsive voltage are applied to the second electrode 113, the black particles 234 in the ink unit may migrate toward the direction away from the first substrate 21 (i.e., the direction opposite to the first direction DR1) and the transparent particles 235 in the ink unit may migrate toward the direction close to the first substrate 21 (i.e., along the first direction DR1) due to the voltages. Since the refractive index of the dielectric layer 17 is smaller than that of the transparent particles 235, the total reflection condition is broken, so that at least when the light incident from the first substrate 21 of the reflective display is on the interface between the dielectric layer 17 and the liquid in the ink cell, the light can pass through the dielectric layer 17, and be reflected and scattered by the surfaces of the neutral particles (including the first color neutral particles 231, the second color neutral particles 232, and the third color neutral particles 233) in the ink cell, at this time, the reflected light having different colors is scattered, and the reflected light exits from the first substrate 21 along the first direction DR1 to be absorbed and recognized by the eyes of the user, thereby realizing color display of different gray-scale states. Here, the number of the transparent particles 235 attached to the surface of the dielectric layer 17 on the side close to the one body can be adjusted by controlling the magnitude of the voltage applied to the first electrode 16 and the second electrode 113, and thereby, the number of light rays reflected and scattered by the first color neutral particles 231, the second color neutral particles 232, and the third color neutral particles 233 can be controlled, and thus, adjustment of different colors and different gray scales can be achieved.

For example, as shown in fig. 5C, when the black particle attracting voltage and the transparent particle repelling voltage are applied to the first electrode 16 and the black particle repelling voltage and the transparent particle attracting voltage are applied to the second electrode 113, the black particles 234 in the ink cell can migrate toward the first substrate 21 (i.e., along the first direction DR1) and the transparent particles 235 in the ink cell can migrate toward the first substrate 21 (i.e., along the direction opposite to the first direction DR1) due to the voltage, so that the black particles in the ink cell are adsorbed to the surface of the dielectric layer 17 on the side close to the ink cell, and since the refractive index of the dielectric layer 17 is smaller than that of the black particles 234, the total reflection condition is broken, so that at least the light incident from the first substrate 21 of the reflective display is on the interface between the dielectric layer 17 and the liquid in the ink cell, although light can pass through the dielectric layer 17, the light can be directly absorbed by the black particles 234 in the liquid in the ink unit after escaping from the dielectric layer 17, and no reflected light escapes, so that the dark state display of the reflective display can be realized. Here, by controlling the magnitude of the voltage applied to the first electrode 16 and the second electrode 113, the number of black particles attached to the surface of the dielectric layer 17 on the side close to the ink unit is adjusted.

As can be seen from the foregoing, in the display panel provided in the exemplary embodiment of the present disclosure, on one hand, the color reflective display is implemented by disposing the uncharged light-reflecting particles with a plurality of different colors, and a color film layer may not be required. Therefore, the transmittance of the display panel provided by the exemplary embodiment of the disclosure can be improved by 1 time when color display is realized, compared with a reflective display device provided with a color film layer, because the color film layer is not required to be arranged, light can be absorbed in the ink unit only once. On the other hand, the reflectivity of the display panel can be improved to a certain extent by arranging the second reflecting structure layer. Therefore, the reflectivity of the display panel can be effectively improved, and further, the display brightness of the display panel during color display can be improved, and the display quality of the display panel is improved. Moreover, as the color film layer is not required to be manufactured, the whole process flow is simpler, and the manufacturing cost can be reduced.

The display panel provided in the embodiment of the disclosure is described below with reference to the accompanying drawings, taking the first substrate as a color film substrate provided with a color film layer, and each ink unit includes liquid and charged black particles located in the liquid.

Fig. 7A is a schematic structural diagram of another display panel in the exemplary embodiment of the present disclosure when bright state display is implemented, fig. 7B is a schematic structural diagram of another display panel in the exemplary embodiment of the present disclosure when gray-state display is implemented, and fig. 7C is a schematic structural diagram of another display panel in the exemplary embodiment of the present disclosure when dark state display is implemented. Wherein, in fig. 7A to 7C, at least one of the plurality of pixel units in the display panel includes three ink units, including: the first ink unit 23-1, the second ink unit 23-2, and the third ink unit 23-3 are illustrated as examples.

In an exemplary embodiment, as shown in fig. 7A to 7C, the display panel may include: the liquid crystal display panel comprises a first substrate 21, a second substrate 22, an ink structure layer 23, a first reflective structure layer and a second reflective structure layer, wherein the first substrate 21 and the second substrate 22 are arranged oppositely, the ink structure layer 23 is arranged between the first substrate 21 and the second substrate 22, the first reflective structure layer is arranged on one side, close to the ink structure layer 23, of the first substrate 21, and the second reflective structure layer 25 is arranged on one side, close to the first substrate 21, of the first reflective structure layer. For example, as shown in fig. 7A to 7C, the ink structure layer 23 may include: a plurality of pixel units, at least one of the plurality of pixel units may include: a first ink unit 23-1, a second ink unit 23-2, and a third ink unit 23-3, the first ink unit 23-1 may include: a liquid (not shown in the figure) and charged black particles 234 in the liquid, and the second ink unit 23-2 may include: a liquid (not shown in the figure) and charged black particles 234 in the liquid, and the third ink unit 23-3 may include: a liquid (not shown in the figure) and charged black particles 234 located in the liquid.

In one exemplary embodiment, as shown in fig. 7A to 7C, the first substrate 21 may include: the display device comprises an opposite substrate 121, and a color film layer 122 and a black matrix 123 which are arranged on one side of the opposite substrate 121 close to the second base plate 22. For example, the color film layer 122 may include: the color filter comprises a red (R) color filter unit, a green (G) color filter unit and a blue (B) color filter unit which are arranged periodically.

In one exemplary embodiment, as shown in fig. 7A to 7C, for example, the second substrate 22 may include: the liquid crystal display device includes an array substrate 111, a driving circuit layer 112 disposed on a side of the array substrate 111 close to the first base plate 21, and a second electrode 113 disposed on a side of the driving circuit layer 112 close to the first base plate 21. For example, the driving circuit layer 112 of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. For example, the second electrode 113 may be connected to the drain electrode of the driving transistor through a via hole.

In one exemplary embodiment, as shown in fig. 7A to 7C, the first reflective structure layer may include: a plurality of lens structures 24, with gaps formed between adjacent lens structures 24.

In one exemplary embodiment, as shown in fig. 7A to 7C, the second reflective structure layer 25 may include: a plurality of reflective structures 251, an orthographic projection of the plurality of reflective structures 251 on the first substrate 21 and an orthographic projection of the gap on the first substrate 21 at least partially overlap. Therefore, the reflection structure with higher reflectivity is added in the gap between the lens structures, so that the reflectivity of the whole sub-pixel can be improved in a large proportion, and the reflection brightness in a bright state is further improved.

As for the display principle of the display panel shown in fig. 7A to 7C, it can be understood by referring to the description of the display principle of the reflective display device shown in fig. 1A to 1C, and here, the exemplary embodiments of the present disclosure are not described in detail again.

As can be seen from the above, the display panel provided by the exemplary embodiment of the disclosure can avoid incident light from directly emitting into the ink structure layer from the gap between the plurality of lens structures and being absorbed by the black particles when color display is implemented, and can avoid the problem that a total reflection phenomenon does not occur on the interface between the first reflective structure layer and the ink structure layer for part of incident light (for example, ambient light), so that the reflectivity of the display panel can be improved, and further, the display brightness of the display panel can be improved, and the display quality of the display panel can be improved.

The technical solution of the embodiment of the present disclosure is explained below by an example of a manufacturing process of a display panel. The "patterning process" in the embodiments of the present disclosure may include a preparation process of depositing a film layer, coating a photoresist, mask exposing, developing, etching, stripping the photoresist, and the like. The deposition may be performed by sputtering, evaporation, chemical vapor deposition, etc., the coating may be performed by a known coating process, and the etching may be performed by a known method, which is not limited herein. In the description of the embodiments of the present disclosure, a "thin film" refers to a layer of a material that is deposited or coated on a substrate. The "thin film" may also be referred to as a "layer" if it does not require a patterning process or a photolithography process throughout the fabrication process. If a patterning process or a photolithography process is required for the "thin film" in the entire manufacturing process, the "thin film" is referred to as a "thin film" before the patterning process, and the "layer" after the patterning process. The "layer" after the patterning process or the photolithography process includes at least one "pattern".

At least one embodiment of the present disclosure further provides a method for manufacturing a display panel. The preparation method comprises the following steps:

step 11: a first substrate and a second substrate are provided.

For example, the first substrate may be an opposite substrate, and the second substrate may be an array substrate, for example, the first substrate may be a color film substrate provided with a color film layer or a transparent substrate without a color film layer, for example, a glass substrate.

Step 12: and sequentially forming a second reflecting structure layer and a first reflecting structure layer on the first substrate.

Step 13: and aligning the first substrate and the second substrate, and forming an ink structure layer between the first substrate and the second substrate.

In an exemplary embodiment, step 12 may include steps 121 to 123:

step 120: a first substrate 21 is provided.

Step 121: as shown in fig. 8A to 8C, a plurality of reflective structures 251 are formed on the first substrate 21.

For example, in a reflective structure comprising: for example, the white oil structure or the white glue structure, step 121 may include fabricating a plurality of reflective structures by using a conventional screen printing process. Wherein, fig. 8B illustrates that all the gap regions at the periphery between the lens structures are correspondingly provided with the reflective structures, fig. 8C illustrates that some of the gap regions between the lens structures are correspondingly provided with the reflective structures,

step 122: as shown in fig. 9, a planarization layer 252 covering the plurality of reflective structures 251 is formed on the first substrate 21. Thus, the second reflective structure layer 25 is formed on the first substrate 21.

Step 123: as shown in fig. 10A to 10C, a lens structure 24 is formed on the first substrate 21. Thus, the second reflective structure layer 25 and the first reflective structure layer are formed on the first substrate 21. In fig. 10B and 10C, the lens structures are illustrated as non-close-packed examples.

In an exemplary embodiment, step 13 may include steps 130 to 132:

step 130: a second substrate 22 is provided.

Step 131: as shown in fig. 11, a plurality of retaining walls 13 are formed on the second substrate 22.

For example, step 131 may include: and preparing the retaining wall by adopting a photoetching process or a nano-imprinting method.

Step 132: to the first substrate 21 and the second substrate 22 of the cartridge, a liquid including particles is filled between the first substrate 21 and the second substrate 22 to form an ink structure layer 23. For example, a liquid including charged light-absorbing particles is filled in each of at least one of the plurality of pixel units to form an ink structure layer 23 in the display panel as shown in fig. 7A. Alternatively, each of the ink units in at least one of the plurality of pixel units is filled with a liquid including charged light-absorbing particles, charged light-reflecting particles and uncharged light-reflecting particles to form the ink structure layer 23 in the display panel as shown in fig. 5A.

The above description of the embodiment of the manufacturing method is similar to that of the above embodiment of the display panel, and has similar advantageous effects to those of the embodiment of the display panel. For technical details that are not disclosed in the embodiments of the preparation method of the present disclosure, those skilled in the art should refer to the description in the embodiments of the display panel of the present disclosure for understanding, and therefore, the description is omitted here.

The disclosed embodiment also provides a display device, which may include: the display panel in one or more of the above embodiments.

In one exemplary embodiment, the display panel may be a reflective display panel.

In an exemplary embodiment, the display device may include, but is not limited to: the display device comprises any product or component with a display function, such as a reader, a billboard, a display box, a mobile phone, a tablet computer, a television, a display, a notebook computer or a navigator. Here, the embodiment of the present disclosure does not limit the type of the display device. Other essential components of the display device are understood by those skilled in the art, and are not described herein nor should they be construed as limiting the present disclosure.

In addition, the display device in the embodiment of the present disclosure may include other necessary components and structures besides the above structure, for example, a pixel driving circuit, and the like, and those skilled in the art may design and supplement the display device accordingly according to the type of the display panel, and details thereof are not repeated herein.

The above description of the embodiment of the display device, similar to the above description of the embodiment of the display panel, has similar advantageous effects to the embodiment of the display panel. For technical details that are not disclosed in the embodiments of the display device of the present disclosure, those skilled in the art should refer to the description of the embodiments of the display panel of the present disclosure for understanding, and therefore, the description thereof is omitted here.

Although the embodiments disclosed in the present disclosure are described above, the above description is only for the convenience of understanding the present disclosure, and is not intended to limit the present disclosure. It will be understood by those skilled in the art of the present disclosure that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure is to be limited only by the terms of the appended claims.