阅读说明：本技术 一种显示面板及显示装置 (Display panel and display device ) 是由 苏晓越 曾洋 唐诗浩 于 2020-03-31 设计创作，主要内容包括：本申请实施例提供一种显示面板及显示装置,显示面板包括：衬底基板、设置在衬底基板上的多个微型LED组及遮挡层；其中,微型LED组包括至少三个微型LED,并且微型LED组中的至少两个微型LED的长度方向不同；遮挡层包括遮挡部和多个开口部,其中,遮挡部位于相邻的微型LED之间并且开口部与微型LED一一对应设置。本申请实施例提供的显示面板及显示装置中,通过将部分微型LED的长度方向设置为不同,可以在像素单元面积确定的情况下,通过合理的排布微型LED,使得微型LED之间的间隙宽度足够大,便于设置合适宽度的遮挡部,进而避免发光混色问题的产生。(The embodiment of the application provides a display panel and a display device, wherein the display panel comprises a substrate, a plurality of micro L ED groups and a shielding layer, the micro L ED groups and the shielding layer are arranged on the substrate, the micro L ED groups comprise at least three micro L EDs, the length directions of at least two micro L EDs in the micro L ED groups are different, the shielding layer comprises a shielding part and a plurality of opening parts, the shielding part is located between adjacent micro L EDs, and the opening parts and the micro L EDs are arranged in a one-to-one correspondence mode.)

1. A display panel, comprising:

a substrate base plate;

the micro L ED group comprises at least three micro L EDs, and at least two micro L EDs in the micro L ED group have different length directions;

the shielding layer comprises a shielding part and a plurality of opening parts, the shielding part is positioned between the adjacent micro L ED, and the opening parts and the micro L ED are arranged in a one-to-one correspondence mode.

2. The display panel according to claim 1, wherein the widths of the blocking portions between adjacently disposed micro-sized L EDs in the group of micro-L EDs are equal.

3. The display panel of claim 1, wherein the group of micro L EDs comprises a first micro L ED, a second micro L ED, and a third micro L ED;

in the micro L ED group, the first micro L ED, the second micro L ED and the third micro L ED are arranged in a triangle, the length direction of the third micro L ED is parallel to a first direction, the length direction of the first micro L ED is parallel to a second direction, and the first direction crosses the second direction.

4. The display panel according to claim 2, wherein the openings corresponding to the same group of micro L EDs are arranged such that adjacent edges of the openings arranged adjacent to each other are parallel.

5. The display panel of claim 3, wherein the micro L ED are micro L ED emitting light of a first color;

the display panel further comprises a second color quantum dot conversion layer and a third color quantum dot conversion layer, wherein the second color quantum dot conversion layer is arranged corresponding to the second micro L ED;

the first color light excites the second color quantum dot conversion layer to emit second color light, and the first color light excites the third color quantum dot conversion layer to emit third color light;

the wavelengths of the first color light, the second color light and the third color light are different; the wavelength of the first color light is smaller than the wavelength of the second color light and smaller than the wavelength of the third color light.

6. The display panel according to claim 5, wherein the plurality of opening portions include a group of openings, the group of openings corresponding one-to-one to the group of micro L EDs;

the opening group comprises a first opening part, a second opening part and a third opening part, wherein the first opening part is arranged corresponding to the first micro L ED, the second opening part is arranged corresponding to the second micro L ED, and the third opening part is arranged corresponding to the third micro L ED;

the area of the first opening portion is smaller than the area of the second opening portion, and the area of the first opening portion is smaller than the area of the third opening portion.

7. The display panel according to claim 6, wherein a length of the first opening portion in the second direction is larger than a width in the first direction, and wherein a length of the third opening portion in the first direction is larger than the width in the second direction.

8. The display panel according to claim 7, wherein the length of the first opening in the second direction is equal to the length of the first micro L ED, and the width of the third opening in the second direction is equal to the width of the third micro L ED.

9. The display panel according to claim 6, wherein the wavelength of the second color light is longer than the wavelength of the third color light;

the area of the second opening is larger than the area of the third opening.

10. The display panel according to claim 9, wherein the second opening portion includes a first side and a second side;

the first edge is adjacent to the first opening, and the extending direction of the first edge is parallel to the second direction; the second edge is adjacent to the third opening, and an included angle between the second edge and the first edge is larger than 90 degrees and smaller than 180 degrees.

11. The display panel according to claim 10, wherein the first opening portion includes a third side adjacent to the second opening portion and extending in a direction parallel to the second direction, and wherein a side length of the first side is equal to a side length of the third side.

12. The display panel according to claim 10, wherein the second opening portion further includes a fourth edge connecting the first edge and the second edge; the fourth side is parallel to the first direction.

13. The display panel according to claim 10, wherein the second micro-sized L ED is disposed obliquely with respect to the first edge in a direction approaching the second edge.

14. The display panel according to claim 10, wherein the display panel further comprises a first color filter layer, a second color filter layer, and a third color filter layer;

the first color filter layer is disposed in the first opening portion, the second color filter layer is disposed in the second opening portion, and the third color filter layer is disposed in the third opening portion;

the projection shape of the first color filter layer on the plane where the display panel is located is a rectangle, the projection shape of the second color filter layer on the plane where the panel is located is a trapezoid, the projection shape of the third color filter layer on the plane where the display panel is located is a trapezoid, and the inclined sides of the trapezoids are adjacent.

15. The display panel according to claim 6, wherein a wavelength of the third color light is larger than a wavelength of the second color light;

the area of the third opening is larger than the area of the second opening.

16. The display panel according to claim 15, wherein a length of the second opening portion in the second direction is equal to a length of the first opening portion in the second direction.

17. The display panel according to claim 5, wherein the blocking portion is a light reflecting structure.

18. The display panel according to claim 5, wherein the thickness of the shielding portion is greater than the thickness of the first color quantum dot conversion layer and greater than the thickness of the second color quantum dot conversion layer.

19. The display panel of claim 3, wherein the micro-dies L ED are arranged in an array, wherein the first micro-dies L ED and the second micro-dies L ED are alternately arranged along the first direction to form a first pixel column, the third micro-dies L ED are adjacently arranged along the first direction to form a second pixel column, the first pixel column and the second pixel column are alternately arranged along the second direction, and the third micro-dies L ED correspond to a space between the first micro-dies L ED and the second micro-dies L ED along the second direction.

20. A display device comprising the display panel according to any one of claims 1 to 19.

[ technical field ] A method for producing a semiconductor device

The application relates to the technical field of display, in particular to a display panel and a display device.

[ background of the invention ]

Micro-L ED display has the advantages of long light-emitting life, high brightness, light and thin volume, low power consumption, high pixel density and the like compared with the traditional liquid crystal display (L CD) and organic light-emitting display (O L ED), and becomes a representative of third-generation display mainly characterized by high reality, interaction and personalized display.

At present, the commonly used Micro-L ED display realizes color display by exciting a quantum dot material by light emitted by a Micro-L ED chip to emit light, and the problem of low color conversion and light efficiency extraction efficiency of the quantum dot material needs to be considered in the technology, so that the thickness of the quantum dot material needs to be set to be thicker, crosstalk is easily generated between adjacent pixels, and the display quality is influenced.

[ application contents ]

In view of the above, embodiments of the present application provide a display panel and a display device to solve the above problems.

In a first aspect, the embodiment of the application provides a display panel, which comprises a substrate, a plurality of micro L ED groups arranged on the substrate, and a shielding layer, wherein the micro L ED groups comprise at least three micro L EDs, the length directions of at least two micro L EDs in the micro L ED groups are different, the shielding layer comprises a shielding portion and a plurality of opening portions, the shielding portion is located between adjacent micro L EDs, and the opening portions and the micro L EDs are arranged in a one-to-one correspondence mode.

In a second aspect, an embodiment of the present application provides a display device, including the display panel provided in the first aspect.

In the display panel and the display device that this application embodiment provided, the length direction through with the miniature L ED of part sets up to the difference, can be under the certain circumstances of pixel cell area, through the miniature L ED of reasonable arranging for the clearance width between the miniature L ED is enough big, is convenient for set up the shielding part of suitable width, and then avoids the production of luminous colour mixture problem.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 shows a pixel arrangement shown by Micro-L ED provided during the inventors' research;

FIG. 2 shows another pixel arrangement shown by Micro-L ED provided during the inventors' research;

fig. 3 is a partial schematic view of a display panel according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional view taken along the direction AA' in FIG. 3;

FIG. 5 is a cross-sectional view taken along direction BB' in FIG. 3;

FIG. 6 shows an arrangement of micro L EDs according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a light-shielding layer according to an embodiment of the present application

Fig. 8 is a schematic view of another light-shielding layer according to an embodiment of the present disclosure;

fig. 9 is a partial schematic view of another display panel provided in the embodiment of the present application;

fig. 10 is a partial top view of a display panel according to an embodiment of the present disclosure;

fig. 11 is a cross-sectional view of another display panel according to an embodiment of the present application;

fig. 12 is a partial schematic view of another display panel according to an embodiment of the present disclosure;

fig. 13 is a schematic view of a display device according to an embodiment of the present disclosure.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.

It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe the opening and the light emitting source, the opening and the light emitting source should not be limited by these terms. These terms are only used to distinguish the opening and the light-emitting source from each other. For example, a first opening may also be referred to as a second opening, and similarly, a second opening may also be referred to as a first opening, without departing from the scope of embodiments of the present application.

The applicant provides a solution to the problems of the prior art through intensive research.

FIG. 1 is a pixel arrangement shown by Micro-L ED provided in the research process of the inventor, wherein FIG. 1 only shows a pixel unit, and one pixel unit comprises pixels emitting three different colors, such as a red pixel, a blue pixel and a green pixel, the light emitting manner shown in FIG. 1 is a manner that Micro-L ED is matched with quantum dots, wherein the three different colors of pixels in one pixel unit comprise respectively corresponding Micro-L ED 011, 012 and 013, and a quantum dot conversion layer arranged at the light emitting side of the Micro-L ED, in order to achieve high light conversion efficiency, the thickness of the quantum dot conversion layer is usually thick, a shielding structure is required to be arranged among all pixels, so as to avoid the problem of color crosstalk caused by the fact that the light emitted by the corresponding Micro-L ED is too small to irradiate the quantum dot conversion layers corresponding to other pixels, in addition, the arrangement of the Micro-L ED 011, the pixel arrangement corresponds to the pixel arrangement, the pixel arrangement shown in the pixel arrangement process, but the arrangement of the Micro-L ED, when the pixel arrangement is adopted, the pixel arrangement is not reduced in the specific pixel arrangement direction, and the spacing between pixels is reduced, so that the spacing between pixels is not reduced, and the spacing of the pixel rows is reduced, thus the pixel array width of the pixel units, and the pixel is not reduced.

Fig. 2 shows another pixel arrangement mode of Micro-L ED display provided in the research process of the inventor, as shown in fig. 2, when three pixels in a pixel unit are arranged in an equilateral triangle, the inventor finds that the gap between the pixels can be relatively increased, that is, a retaining wall with a certain width can be basically arranged between the pixels, but it can also be seen that when the arrangement mode shown in fig. 2 is adopted, the gap width between the pixels is not uniform, for example, the distance d0 between the top corner of the top pixel (the pixel corresponding to the lower end Micro-L ED 012) of the three pixels and the nearest top corner of the other two pixels is too small, so that the retaining wall width at the position cannot meet the requirement.

Based on above problem, this application provides a display panel and display device, when guaranteeing to set up the colour mixture problem can not appear in the barricade between the pixel, improves pixel luminous area and guarantees to show the colourity.

Fig. 3 is a partial schematic view of a display panel according to an embodiment of the present invention, fig. 4 is a cross-sectional view along AA 'of fig. 3, fig. 5 is a cross-sectional view along BB' of fig. 3, and fig. 3-5 only illustrate a pixel unit of the display panel, and it can be understood that the display panel actually includes a plurality of pixel units, please refer to fig. 3-5, the display panel according to an embodiment of the present invention includes a substrate 20 and a plurality of micro L ED groups 21 disposed on the substrate 20, and the display panel may further include a counter substrate 10, the counter substrate 10 is disposed opposite to the substrate 20, and the micro L ED groups 21 are disposed on a side of the substrate 20 facing the counter substrate 10.

The Micro L ED group 21 includes at least three Micro L EDs, and at least two Micro L EDs in the Micro L ED group 21 are different in length direction, as shown in fig. 3-5, the embodiment of the present application exemplifies that the Micro L ED group 21 includes three Micro L3 EDs, that is, the Micro L ED group 21 includes a first Micro L ED211, a second Micro L ED 212, and a third Micro L ED213, as shown in fig. 3, two Micro L EDs among the three Micro L EDs are different in length direction, for example, the first Micro L ED211 is different from the third Micro L ED213 in length direction, it should be noted that the Micro L ED referred to in the embodiment of the present application refers to a Micro L ED grown on a wafer, and the size of the Micro L ED may be controlled to about 1-10 μm, that the Micro 58L referred to in the embodiment of the present application may be a Micro L ED., and the Micro 639 EDs may be further configured in a shape along a long axis direction of a rectangular wafer, and the Micro L, and the Micro length direction of the Micro 8427 ED may be configured in a shape of the same as the Micro length direction, and the Micro L.

The display panel further comprises a shielding layer 11, the shielding layer 11 comprises a shielding portion 11D and a plurality of opening portions, the shielding portion 11D is located between adjacent micro L EDs, and the opening portions and the micro L EDs are arranged in a one-to-one correspondence manner.

The shielding layer 11 may be provided on the base substrate 20 or on the counter substrate 10, and both of these embodiments are within the scope of the present invention. In addition, if the shielding layer is provided on the base substrate 20, the shielding layer 11 is specifically provided on the side of the base substrate 20 facing the counter substrate 10; if the shielding layer is provided on the counter substrate 10, the shielding layer 11 is specifically provided on the side of the counter substrate 10 facing the base substrate 20.

In the embodiment of the present application, by setting the length directions of some micro-sized L EDs to be different, the gap width between the micro-sized L EDs can be made to be sufficiently large by reasonably arranging the micro-sized L EDs under the condition that the area of the pixel unit is determined, so that the shielding portion 11D with a proper width can be conveniently arranged, and the problem of light emission and color mixing can be avoided.

The plurality of openings include an opening group 110, the opening group 110 corresponds to the micro L ED group 21 one by one, the opening group 110 includes a first opening 111, a second opening 112 and a third opening 113, the first opening 111 corresponds to the first micro L ED211, the second opening 112 corresponds to the second micro L ED 212, and the third opening 113 corresponds to the third micro L ED 213. concretely, the projection of the first opening 111 on the substrate 20 exposes the corresponding first micro L ED211, the projection of the second opening 112 on the substrate 20 exposes the corresponding second micro L ED 212, and the projection of the third opening 113 on the substrate 20 exposes the corresponding third micro L ED 213. the light emitted by the first micro L directly or after conversion is emitted through the first opening 111, the light emitted by the second micro L ED 212 is directly or after conversion is emitted through the second opening 112, and the light emitted by the third micro L ED213 is directly or after conversion is emitted through the third micro ED 113.

In the display panel provided by the present application, one micro L ED group 21 corresponds to one pixel cell, one aperture group 110 also corresponds to one pixel cell, that is, one pixel cell includes a first micro L ED211, a second micro L ED 212, and a third micro L ED213, and one pixel cell includes a first opening 111, a second opening 112, and a third opening 113.

As shown in fig. 3, in an embodiment of the present application, the widths of the shielding portions 11D between the adjacent micro-dies L ED of the micro-die L ED group 21 are equal, that is, the widths of the gaps between the adjacent first, second, and third opening portions 111, 112, and 113 are equal, that is, in one opening group 110, the distance between the edge of the first opening portion 111 close to the second opening portion 112 and the edge of the second opening portion 112 close to the first opening portion 111 is a first distance D1, the distance between the edge of the first opening portion 111 close to the third opening portion 113 and the edge of the third opening portion 113 close to the first opening portion 111 is a second distance D2, the distance between the edge of the second opening portion 112 close to the third opening portion 113 and the edge of the third opening portion 113 close to the second opening portion 112 is a third distance D3, wherein the first distance D1, the second distance D2, the third distance D634, and the third distance D3 are equal, specifically, as shown in fig. 3, the width between the shielding portions 11D 11 and the width of the third opening portion 113 is a third opening portion 3, wherein the width of the shielding portions 113D 11 is a width of the third opening portion 367, the width of the opening portion 3611D 3, the third opening portion 113 is a third opening portion 3, the width of the third opening portion 3611D 3.

In one pixel unit, the widths of the shielding portions 11D between the adjacently disposed opening portions are equal, that is, the gap widths between the different opening portions in one opening group 110 are set to be equal, and alternatively, the widths may be the minimum widths according to the prevention of color mixing of the adjacent different color pixels. The light transmission area of the pixel can be increased under the condition that the area of one pixel unit is determined; in the case where the light transmission area of the pixel is determined, the area of the pixel unit can be reduced, and then the pixel density can be increased.

In addition, it is preferable that the adjacent edges of the openings adjacently disposed in the opening group 110 corresponding to the same micro L ED group 21 are parallel, that is, the adjacent edges of the first opening 111, the second opening 112, and the third opening 113 are disposed in parallel in one pixel unit, and specifically, as shown in fig. 3, in one opening group 110, the edge of the first opening 111 close to the second opening 112 is parallel to the edge of the second opening 112 close to the first opening 111, the edge of the first opening 111 close to the third opening 113 is parallel to the edge of the third opening 113 close to the first opening 111, and the edge of the second opening 112 close to the third opening 113 is parallel to the edge of the third opening 113 close to the second opening 112.

With continued reference to fig. 3, in the micro L ED group 21, the first micro L ED211, the second micro L0 ED 212, and the third micro L1 ED213 are arranged in a triangle, specifically, the first micro L2 ED211 and the second micro L3 ED 212 are arranged along the first direction X, and the first micro L4 ED211 and the second micro L5 ED 212 are considered as a whole, and the third micro L ED213 and the whole are arranged along the second direction Y, for example, the third micro L ED213 and the first micro L ED211 are arranged along the second direction Y and the second micro L ED 212 are arranged along the second direction Y, or the third micro L ED and the first micro L ED211 are arranged along the second direction Y, or the third micro L ED and the second micro L ED 212 are arranged along the second direction Y, wherein the first direction X intersects the second direction Y, and the first direction Y is preferably perpendicular to the second direction Y.

Preferably, fig. 6 is an arrangement manner of micro-devices L ED according to an embodiment of the present disclosure, as shown in fig. 6, in an embodiment, the micro-devices L ED are arranged in an array, wherein the first micro-devices L ED211 and the second micro-devices L ED 212 are alternately arranged along a first direction X to form a first pixel column P1, the third micro-devices L ED213 are adjacently arranged along the first direction X to form a second pixel column P2, the first pixel column P1 and the second pixel column P2 are alternately arranged along a second direction Y, and the third micro-devices L ED213 correspond to a space between the first micro-devices L ED211 and the second micro-devices L ED213 in the second direction Y.

The length direction of the third micro-scale L ED213 is parallel to the first direction X, and the length direction of the first micro-scale L ED211 is parallel to the second direction Y. that is, the length direction of the first micro-scale L ED211 is the same as the width direction of the third micro-scale L ED213, the sum of the size of the first micro-scale L ED211 and the size of the third micro-scale L ED is the smallest in the second direction, and therefore, in the case where the width of each opening portion is determined, there is enough space for installing the shielding portion 11D, or in the case where the width of the shielding portion 11D is determined, the area of the opening portion can be increased.

Referring to fig. 4 and 5, in an embodiment of the present application, the micro L EDs are micro L ED. emitting a first color light, that is, the first micro L1 ED211, the second micro L2 ED 212 and the third micro L3 ED213 in the micro L0 ED group 21 are all micro L4 EDs emitting a first color light, and preferably, the first micro L ED211, the second micro L ED 212 and the third micro L ED213 are micro L ED. having the same size and shape, the display panel further includes a second color quantum dot conversion layer 122 and a third color quantum dot conversion layer 123, the second color quantum dot conversion layer 122 and the second micro L ED 212 are disposed correspondingly, the third color quantum dot conversion layer 123 and the third micro L ED213 are disposed correspondingly, the first color light emitted by the second micro L ED 212 excites the second color quantum dot conversion layer 122 to emit a second color light, the third color quantum dot conversion layer L and the third micro ED213 emit a third color light, wherein the first color light, the third color light and the third color light are different from the first color light, the third color light and the third color light emitted by the third color quantum dot conversion layer L ED.

And the wavelength of the first color light is smaller than the wavelength of the second color light and smaller than the wavelength of the third color light. That is, the excitation of the second color quantum dot conversion layer 122 and the third color quantum dot conversion layer 123 by the first color light with larger energy generates the second color light and the third color light with smaller energy, respectively.

Correspondingly, referring to fig. 3, the area of the first opening 111 is smaller than that of the second opening 112, and the area of the first opening 111 is smaller than that of the third opening 113. Because the wavelengths of the second color light and the third color light are both smaller than the wavelength of the first color light, the brightness of the second color light and the brightness of the third color light should be greater than the brightness of the first color light in order to realize white light; meanwhile, since the first color light is emitted to the first opening 111 without being converted by the quantum dot conversion layer, and the second color light and the third color light are generated by exciting the quantum dot conversion layer by the first color light, the conversion efficiency has an influence on the conversion of the light, the area of the first opening 111 may be smaller than the areas of the second opening 112 and the third opening 113 corresponding to the second color light and the third color light, respectively.

Further, as shown in fig. 3, the length of the first opening 111 in the second direction Y is greater than the width in the first direction X, and the length of the third opening 113 in the first direction X is greater than the width in the second direction. That is, the longitudinal direction of the first opening 111 is the same as the width direction of the third opening 113, and the sum of the size of the first opening 111 and the size of the third opening 113 is the smallest in the second direction Y, and the space between the openings is sufficiently large to form the shielding portion 11D of a desired width.

Further, with reference to fig. 3, the length of the first opening 111 along the second direction Y is equal to the length of the first micro L ED211, and the width of the third opening 113 along the second direction Y is equal to the width of the third micro L ED 213.

The length of the first opening 111 along the second direction Y is substantially equal to the length of the first micro-die L ED211 along the second direction Y, that is, the length of the first opening 111 can be determined according to the length of the first micro-die L ED211 when the shape and size of the first micro-die L ED211 are determined, it is understood that the length of the first opening 111 and the length of the first micro-die L ED211 are substantially equal to the minimum length that ensures that the light emitted from the first micro-die L ED211 can be shielded and emitted by the shielding layer 11 as little as possible, therefore, the length of the first opening 111 along the second direction Y is equal to the length of the first micro-die L ED211 along the second direction Y, on one hand, the light emitting rate of the pixels corresponding to the first opening 111 and the first micro-die L ED211 can be ensured, on the other hand, the length of the first opening 111 is as short as possible, so that there is enough gap width between the adjacent pixels in one pixel unit along the second direction Y to avoid color mixing.

In one implementation, as shown in fig. 3, the width of the first opening 111 along the first direction X is equal to the width of the first micro-die L ED211 along the first direction X, that is, in the case that the shape and size of the first micro-die L ED211 are determined, the width of the first opening 111 may be determined according to the width of the first micro-die L ED211, it is understood that the width of the first opening 111 is equal to the width of the first micro-die L ED211, which is the minimum width for ensuring that the light emitted from the first micro-die L ED211 is not shielded by the shielding layer 11 as much as possible, and therefore, the width of the first opening 111 along the first direction X is equal to the width of the first micro-die L ED211 along the first direction X, which can ensure the light extraction rate of the pixels corresponding to the first opening 111 and the first micro-die L ED211, and on the other hand, the width of the first opening 111 is as small as possible, so that there is enough gap between the adjacent pixels in the pixel unit along the first direction X to avoid color mixing.

Further, the shape and size of the first opening 111 may be substantially the same as those of the first micro L ED211 correspondingly disposed, and the first opening 111 completely exposes the first micro L ED 211. since the light emitting color of the pixel corresponding to the first micro L ED211 is the same as that of the first micro L ED211, the quantum dot conversion layer may not be disposed in the first opening 111 corresponding to the first micro L ED211, and the light quantity loss of the first color emitted from the first micro L ED211 is small after the light is emitted through the first opening 111, so that the first opening 111 may be disposed to have the same size as that of the first micro L ED211, which may also ensure a larger gap between the first opening 111 and other openings, or reduce the surface of the pixel unit to increase the pixel density if the gap between the first opening 111 and other openings is determined.

The width of the third opening 113 in the second direction Y is equal to the width of the third micro-scale L ED213 in the second direction Y, and thus the width of the third opening 113 may be determined according to the width of the third micro-scale L ED213 when the shape and size of the third micro-scale L ED213 are determined, it is understood that the width of the third opening 113 is equal to the width of the third micro-scale L ED213 is the minimum width that ensures that light emitted from the third micro-scale L ED213 or light of the third color emitted from the third micro-scale L ED213 by the third color quantum dot conversion layer 123 is not blocked by the blocking layer 11 as much as possible, and thus the width of the third opening 113 in the second direction Y is equal to the width of the third micro-scale L213 in the second direction Y, so that the light emission ratios of pixels corresponding to the third opening 113 and the third micro-scale L ED213 are ensured, and on the other hand, the third opening 113 is disposed on the side of the first opening 111 and the second opening 112, so that the length of the third opening 113 in the first direction ED213 is adjusted as much as possible, so that the light emission area of the pixel is kept as narrow as small as possible, and the third opening 113 is further, and the light emission of the pixel 213 is prevented from being disposed along the third opening 113 and the adjacent to ensure that the third opening 113 is disposed along the width of the third opening 113 and the third opening 11.

The width of the second opening 112 in the first direction X may be greater than the width of the second micro-die L ED 212 in the first direction X, and the area of the second opening 112, that is, the light emitting area of the pixel corresponding to the second opening 112 may be increased by appropriately increasing the width of the second opening 112 in the first direction X.

In one embodiment of the present application, the wavelength of the second color light is greater than the wavelength of the third color light, and the area of the second opening 112 is greater than the area of the third opening 113. preferably, the first color light is blue light, the second color light is red light, and the third color light is green light. then the micro L ED is a blue micro L ED emitting blue light, the second color quantum dot conversion layer 122 is a red quantum dot conversion layer and is disposed corresponding to the second micro L ED 212, and the third color quantum dot conversion layer 123 is a green quantum dot conversion layer and is disposed corresponding to the third micro L ED 213. correspondingly, the second micro L ED 212 excites the red quantum dot conversion layer such that the pixel corresponding to the second opening 112 emits red light, and the third micro L ED213 excites the green quantum dot 123 such that the pixel corresponding to the third opening 113 emits green light.

In addition, the micro L ED may not be completely blue micro L ED, for example, the first micro L ED may be blue micro L ED, the second micro L ED may be red micro L ED, and the third micro L ED may be green micro L ED, and correspondingly, the blue quantum dot conversion layer may be disposed in the first opening 111 and the corresponding pixel emits blue light, the red quantum dot conversion layer may be disposed in the second opening 112 and the corresponding pixel emits red light, and the green quantum dot conversion layer may be disposed in the third opening 113 and the corresponding pixel emits green light.

In addition, the first micro L ED may be a blue micro L ED, the third micro L0 ED may be a green micro L1 ED, and the second micro L ED may be one of a blue micro L ED or a green micro L ED, and a red quantum dot conversion layer may be disposed in the corresponding second opening 112 and the corresponding pixel emits red light, since the blue micro L ED and the green micro L ED are the same wafer, which is typically a GaN-based wafer, and the red micro L ED is different from the wafer, which is typically a GaP-based wafer, the blue micro L ED and the green micro L ED using the same wafer in the display panel are simple in manufacturing process and cost-saving.

It should be noted that, referring to fig. 4 and fig. 5, since the light conversion efficiency of the red quantum dot conversion layer is smaller than that of the green quantum dot conversion layer, in order to balance the amount of red light generated by the blue light micro L ED exciting the red quantum dot conversion layer and the amount of green light generated by the green quantum dot conversion layer, the thickness of the red quantum dot conversion layer may be set to be larger than that of the green quantum dot conversion layer, that is, the thickness of the second color quantum dot conversion layer 122 is set to be larger than that of the third color quantum dot conversion layer 123.

Fig. 7 is a schematic view of a light-shielding layer according to an embodiment of the present invention, as shown in fig. 7, the second opening 112 includes a first side L and a second side L, the first side L is adjacent to the first opening 111, and the extending direction of the first side L11 is parallel to the second direction Y, that is, the first side L is a side of the second opening 112 parallel to the longitudinal direction of the first opening 111 and adjacent to the first opening 111, the second side L is adjacent to the third opening 113, and the included angle between the second side L2 and the first side 466 1 is greater than 90 ° and less than 180 °, that is, the second side L is located on a side of the first side L1 away from the first opening 111 and close to the third opening 113, and the second side L is inclined toward the third opening 113 in a direction away from the first side L, and the area of the second opening 112 corresponding to the light-transmitting area of the pixel 483 can be further increased by inclining the second side L close to the third opening 113 in the direction of the second opening 113.

Further, the first opening portion 111 includes a third side L3, the third side L3 is adjacent to the second opening portion 112, and the extending direction of the third side L3 is parallel to the second direction Y, and the third side L3 is a side of the first opening portion 111 that is parallel to the length direction of the first opening portion 111 and adjacent to the second opening portion 112, that is, the third side L3 of the first opening portion 111 is adjacent to and parallel to the first side L1 of the second opening portion 112, wherein the side length of the first side L1 is equal to the side length of the third side L3, as shown in fig. 6, one end of the second opening portion 112 near the first opening portion 111 is aligned with the first opening portion 111 in the first direction X.

With continued reference to fig. 7, according to the above description, the second opening 112 may be formed by splicing a base 112A and a protrusion 112B arranged along the second direction Y, and the protrusion 112B is located on a side of the base 112A close to the third opening 113, and the protrusion 112B is located on a side of the first edge L1 away from the first opening 111, wherein a length of the base 112A of the second opening 112 along the second direction Y is equal to a length of the first opening 111 along the second direction Y, and further, the base 112A is aligned with the first opening 111 along the first direction X, and the protrusion 112B is equivalent to further enlarging an area in a direction of the third opening 113 on the basis of the alignment of the base 112A and the first opening 11.

As shown in fig. 7, in one pixel unit, when the width of the shielding portion 11D is determined, the length of the first opening portion 111 and the width of the third opening portion 113 determine the length of the pixel unit in the second direction Y, and specifically, the sum of the length of the first opening portion 111, the width of the third opening portion 113, and the minimum value of the shielding portion 11D between the first opening portion 111 and the third opening portion 113 is the minimum length of the pixel unit in the second direction Y, and the minimum length determines the density of the pixel unit.

However, since the second color quantum dot conversion layer is disposed in the second opening 112, considering that the light conversion efficiency of the quantum dot conversion layer is limited, in order to ensure that the luminance of the pixel corresponding to the second opening 112 is high, the area of the second opening 112 may be designed to be large, for example, the width of the second opening 112 in the first direction X is widened, and the width of the pixel unit in the first direction X is not too wide, which limits the width of the second opening 112 in the first direction X from being increased further, and therefore, the opening area of the second opening 112 may be increased further by disposing the protrusion 112B on the side of the base 112A of the second opening 112 close to the third opening 113.

With continued reference to fig. 7, the protrusion 112B includes a first side L2 adjacent to the third opening 113, the third opening 113 includes a fifth side L5 adjacent to the second opening 112, and the second side L2 is parallel to the fifth side L5. in other words, the second opening 112 is provided with the protrusion 112B adjacent to one side of the third opening 113, one side of the third opening 113 adjacent to the second opening 112 is designed to be avoided so as to ensure that the gap between the second opening 112 and the third opening 113 is also the third distance D3, wherein the first distance D1, the second distance D2 and the third distance D3 are equal, so that even though the second opening 112 and the third opening 113 are designed to be inclined, the gap between the two openings is still wide and equal to the width between the other openings, so as to provide the shielding part 11D with the same width between the adjacent openings.

The shielding parts extending obliquely relative to the first direction X and the second direction Y are arranged, so that the width of the shielding parts of each area between adjacent pixels in the pixel unit is kept consistent, and meanwhile, the blank area without the micro L ED in the opening part can be distributed to the second opening part 112 and the third opening part 113 according to needs.

As shown in fig. 7, the first opening 111 is rectangular, and the base 112A of the second opening 112 is also rectangular, and the shape of the base 112A of the first opening 111 and the second opening 112 may be other shapes. Further, as shown in fig. 7, the convex portion 112B is triangular; fig. 8 is a schematic view of another light-shielding layer according to an embodiment of the present disclosure, and as shown in fig. 8, the protrusion 112B may also be a trapezoid; in addition, the projection 112B may have a rectangular shape or another shape.

Further, with continued reference to fig. 7, the second opening 112 may further include a fourth side L04 connecting the first side L1 and the second side L2, and the fourth side L is parallel to the first direction X, that is, the fourth side L may be perpendicular to the first side L, and the second side L may not be inclined from the position of the first side L, i.e., from the third opening 113, and the second side L may be inclined from the position of the first side L in the first direction X, i.e., the second side L may be inclined from the position of the fourth side 854 distant from the first side L, i.e., from the end of the fourth side 854 distant from the first side L, i.e., the second side L2 may be inclined from the position of the first side L1, i.e., the second side L may be connected to the end of the first side L close to the third opening 113, and inclined to the third opening 113.

Fig. 9 is a partial schematic view of another display panel according to an embodiment of the present disclosure, and as shown in fig. 9, when the second opening portion 112 has a second side L2 inclined toward the third opening portion 113, the second micro L ED 212 may be inclined toward the second side L with respect to the first side L01, and it can be seen that an angle between the length direction of the second micro 382 ED 212 and the first side L is greater than 90 ° and less than 180 °, and an angle between the second side L is less than 90 °, the second micro L ED 212 is inclined toward the first side L and the third opening portion 113 and the second side 8972 with respect to the first side L and the third opening portion 113 in a direction substantially the same as the inclination direction of the first side L and the third opening portion 113, the inclination direction of the second side L2 in the second opening portion 112 makes the second side L2 near the end far from the first side L1 apart from the center of the second opening portion 112, and the second micro ED 212 may be inclined away from the second side L in a substantially same manner, so that the second light conversion efficiency of the second opening portion may not be far from the second side L, and the second light conversion efficiency of the second opening portion may be guaranteed.

Since the light conversion efficiency of the red light quantum dot conversion layer is lower, a larger light emitting area is needed, in the embodiment shown in fig. 7, the inclined shielding portion 11D and the inclined second micro-scale L ED are disposed outside the second opening 112 corresponding to the red light quantum dot conversion layer, that is, the second micro-scale L ED rotates not only with respect to the first micro-scale L0 ED but also with respect to the direction of the opening, and the opening is left around the second micro-scale L1 ED, so that the smoothness of the red light emitted from the second opening is ensured to be greater than that of the first micro-scale L ED and the second micro-scale L ED., and the length direction of the third micro-scale L ED rotates 90 degrees with respect to the first micro-scale L ED, on the premise of not changing the overall profile of the pixel unit, the opening of the third micro-scale L ED is increased with respect to the first micro-scale L, and the third micro-scale L ED does not rotate with respect to the opening like the second micro-scale L ED, and therefore, the light emitting degree of the green light quantum conversion layer is between the red light quantum conversion layer and the red light conversion layer.

With continued reference to fig. 4 and 5, the display panel further includes a first color filter layer 131, a second color filter layer 132, and a third color filter layer 133. specifically, the first color filter layer 131 is disposed in the first opening portion 111, the second color filter layer 132 is disposed in the second opening portion 112, and the third color filter layer 133 is disposed in the third opening portion 113. that is, the second color filter layer 132 is disposed corresponding to the second color quantum dot conversion layer 122, and the third color filter layer 133 is disposed corresponding to the third color quantum dot conversion layer 123. specifically, referring to fig. 4 and 5, the second color filter layer 132 is disposed on a side of the second color quantum dot conversion layer 122 facing the light-emitting side of the display panel, the third color filter layer 133 is disposed on a side of the third color quantum dot conversion layer 123 facing the light-emitting side of the display panel, and the first color filter layer 131 is disposed in the first opening portion 111. the first color light emitted by the micro L ED passes through the first color filter layer 131, the first color light excites the second color filter layer 122, the third color filter layer 133 emits the third color light after passing through the third color quantum dot conversion layer 123, and excites the third color light.

It should be noted that, the first color filter layer 131 may cover the first opening 111, and the projection of the first color filter layer on the plane where the display panel is located covers the first opening 111, and the outlines of the first color filter layer and the first opening are substantially the same; the second color filter layer 132 may cover the second opening 112, and the projection of the second color filter layer on the plane of the display panel covers the second opening 112, and the outlines of the two are substantially the same; the third color filter layer 133 may cover the third opening 113, and its projection on the plane of the display panel covers the third opening 113, and the outlines of the two are substantially the same. Fig. 10 is a partial top view of a display panel according to an embodiment of the present disclosure, and as shown in fig. 10, a projection shape of the first color filter layer 131 on a plane of the display panel is a rectangle, a projection shape of the second color filter layer 132 on the plane of the display panel is a trapezoid, and a projection shape of the third color filter layer 133 on the plane of the display panel is a trapezoid. The trapezoid corresponding to the second color filter layer 132 is adjacent to and parallel to the oblique side of the trapezoid corresponding to the third color filter layer 133.

With reference to fig. 10, it can be seen that the shapes of the outer contours of the first opening 111, the second opening 112, and the third opening 113 are rectangular in one pixel unit, and the shapes of the outer contours of the first color filter 131, the second color filter 132, and the third color filter 133 are also rectangular in the same pixel unit, however, the shapes of the outer contours of the first opening 111, the second opening 112, and the third opening 113 may be other shapes, and the shapes of the outer contours of the first color filter 131, the second color filter 132, and the third color filter 133 may be other shapes, and the shapes of the outer edges should be substantially the same as the shapes of the pixel units in one pixel unit.

In one embodiment of the present application, the wavelength of the third color light is greater than that of the second color light, and the area of the third opening 113 is greater than that of the second opening 112. preferably, the first color light is blue light, the second color light is green light, and the third color light is red light. then the micro L ED is blue light-emitting micro L ED, the second color quantum dot conversion layer 122 is green quantum dot conversion layer and is disposed corresponding to the second micro L ED 212, and the third color quantum dot conversion layer 123 is red quantum dot conversion layer and is disposed corresponding to the third micro L ED 213. fig. 11 is a cross-sectional view of still another display panel provided by the embodiment of the present application, and correspondingly, the second micro L ED 212 excites the green quantum dot conversion layer so that the pixel corresponding to the second opening 112 emits green light, the third micro L ED213 excites the red quantum dot conversion layer 123 so that the pixel corresponding to the third opening emits red light.

With reference to fig. 11, since the light conversion efficiency of the red quantum dot conversion layer is smaller than that of the green quantum dot conversion layer, in order to balance the amount of red light generated by the blue light micro L ED exciting the red quantum dot conversion layer and the amount of green light generated by the green quantum dot conversion layer, the thickness of the red quantum dot conversion layer may be set to be greater than that of the green quantum dot conversion layer, that is, the thickness of the third color quantum dot conversion layer 123 is set to be greater than that of the second color quantum dot conversion layer 122.

FIG. 12 is a partial schematic view of still another display panel provided in an embodiment of the present application, where as shown in FIG. 12, when the wavelength of the third color light is greater than that of the second color light, the length of the second opening 112 in the second direction Y is equal to that of the first opening 112 in the second direction Y, further, the lengths of the second opening 112 and the first opening 111 in the second direction are both equal to that of the micro L ED, and the second opening 112 and the first opening 111 are aligned in the first direction X. at this time, the second opening 112 may increase the opening area by adjusting the width in the first direction X so as to be greater than the area of the first opening 111. since the lengths of the first opening 111 and the second opening 112 are equal and both are aligned in the first direction X, the third opening 113 on one side of the second opening 111 in the second direction Y may adjust the length in the first direction X, and the space for adjusting the length is large enough so as to increase the third opening 113 to a suitable opening area along the length of the pixel X, and the pixel 113 should be increased by a suitable distance along the pixel X, and the pixel area of the pixel 113 should be increased by a suitable distance of the third opening 113.

With continued reference to fig. 4 and fig. 5, the display panel further includes a black matrix 14, the black matrix 14 is located between the openings, and the black matrix 14 is made of a black material and can absorb light, so that the black matrix 14 is disposed at a position closer to the light emitting side of the display panel, that is, the black matrix 14 can be disposed on a surface of the shielding layer 11 close to the light emitting side of the display panel to absorb the light that is about to exit the display panel and is close to the large angle between the pixels, thereby avoiding the color mixture of the light with different colors between the adjacent pixels.

The shielding portion 11D is disposed at a position closer to the micro L ED, so that the light of the first color emitted by the micro L ED corresponding to one pixel can be prevented from deviating to the position of another pixel, and the shielding portion 11D is a light reflection structure and can reflect the light with a larger angle emitted by the micro L ED corresponding to one pixel, so that the light with the larger angle can reach the corresponding opening portion by chance, and the light emitting efficiency is improved.

In addition, the thickness of the shielding part 11D should be larger than the thickness of the red quantum dot conversion layer and larger than the thickness of the green quantum dot conversion layer 122, so that the light of the first color emitted from one micro L ED can only reach the opening part corresponding to the micro L ED, thereby improving the resolution.

Fig. 13 is a schematic view of a display device provided in an embodiment of the present application, including a display panel provided in any one of the embodiments, as shown in fig. 13, the display device provided in the embodiment of the present application may be a mobile phone, and in addition, the organic light emitting display device provided in the embodiment of the present application may also be a display device such as a computer or a television.

In the display device that this application embodiment provided, through setting up the length direction with partial miniature L ED to different, can be under the definite condition of pixel cell area, through the miniature L ED of rationally arranging for the gap width between the miniature L ED is enough big, is convenient for set up the shielding portion 11D of suitable width, and then avoids the production of luminous colour mixture problem.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.