阅读说明：本技术 透镜阵列及其制备方法、显示面板 (Lens array, preparation method thereof and display panel ) 是由 魏起 于 2019-10-29 设计创作，主要内容包括：本发明实施例公开了一种透镜阵列及其制备方法、显示面板,透镜阵列包括透镜基板,所述透镜基板上方设置有至少一排透镜单元,所述透镜单元表面形成有金属膜层,所述透镜单元中相邻两个透镜单元表面的金属膜层之间存在间隙。本发明提供的透镜阵列,通过在透镜阵列中透镜单元的表面形成金属膜层,且透镜单元中相邻两个透镜单元表面的金属膜层之间存在间隙,这样可以单独对每个透镜单元上的金属膜层进行单独驱动,进而切换每个透镜单元对应的显示区域的液晶的开关状态,对进入显示面板的光线进行调制,实现2D显示和3D显示快速切换。(The embodiment of the invention discloses a lens array, a preparation method thereof and a display panel. According to the lens array provided by the invention, the metal film layers are formed on the surfaces of the lens units in the lens array, and the gap exists between the metal film layers on the surfaces of two adjacent lens units in the lens array, so that the metal film layers on each lens unit can be independently driven, the on-off state of the liquid crystal in the display area corresponding to each lens unit is further switched, the light entering the display panel is modulated, and the quick switching between 2D display and 3D display is realized.)

1. A lens array is characterized by comprising a lens substrate, wherein a plurality of lens units are arranged above the lens substrate;

and metal film layers are formed on the surfaces of the lens units, and a gap exists between the metal film layers on the surfaces of two adjacent lens units.

2. The lens array of claim 1, wherein the gap is located on a surface of the lens unit.

3. The lens array of claim 1, further comprising an electrode wire having one end electrically connected to the metal film layer and the other end extending to a side of the lens substrate.

4. A method of making a lens array, the method comprising:

providing a substrate;

preparing a plurality of lens units over the substrate;

and carrying out metal coating on the plurality of lens units to obtain metal film layers, wherein gaps exist between the metal film layers above two adjacent lens units.

5. The method of claim 4, wherein the metal coating is performed on the plurality of lens units to obtain a metal film layer, and a gap exists between the metal film layers on two adjacent lens units, and the method comprises:

performing a metal plating film over a part of the plurality of lens units to form a first metal film;

and performing metal plating on another part of the plurality of lens units to form a second metal film spaced apart from the first metal film.

6. The method of manufacturing a lens array according to claim 5, wherein the metal plating over a part of the plurality of lens units to form a first metal film includes:

coating photoresist on the plurality of lens units to obtain a first photoresist layer;

exposing the first photoresist layer through a first mask plate to remove the first photoresist layer above a part of the lens units in the plurality of lens units;

performing metal coating on the first photoresist layer and the part of the lens units to obtain a first metal film layer;

and cleaning the first photoresist layer and the first metal film layer to remove the first photoresist layer and the first metal film layer on the first photoresist layer to obtain a first metal film.

7. The method for manufacturing a lens array according to claim 6, wherein the first mask comprises a first light-transmitting area and a first light-shielding area, the first light-transmitting area and the first light-shielding area are distributed in a crossed periodic manner, and a width of the first light-transmitting area is smaller than a width of a first light-shielding area adjacent to the first light-transmitting area in a distribution direction of the first light-transmitting area and the first light-shielding area.

8. The method of manufacturing a lens array according to claim 5, wherein the metallizing another part of the plurality of lens units to form a second metal film spaced apart from the first metal film comprises:

covering a second mask plate above the lens unit, wherein the second mask plate comprises a second light transmitting area and a second light shading area, and the second light shading area is arranged corresponding to the first metal film;

coating photoresist on the second mask plate to obtain a second photoresist layer;

removing the second mask plate to form a via hole at a position of the second photoresist layer corresponding to the second shading area;

performing metal coating on the second photoresist layer and the other part of the lens unit to obtain a second metal film layer;

and exposing and cleaning the second photoresist layer to remove the second photoresist and the second metal film layer on the second photoresist to obtain a second metal film.

9. The method for manufacturing a lens array according to claim 8, wherein the second light-transmitting areas and the second light-shielding areas are distributed in a crossed periodic manner, and a width of the second light-transmitting areas is greater than or equal to a width of the second light-shielding areas in a distribution direction of the second light-transmitting areas and the second light-shielding areas.

10. The display panel is characterized by comprising at least two stacked lens arrays, and liquid crystal is filled between every two adjacent lens arrays.

Technical Field

The invention relates to the field of display, in particular to a lens array, a preparation method thereof and a display panel.

Background

Three-dimensional imaging and display technologies have received increasing attention in recent years. Since the stereoscopic technology based on the microlens array has complete parallax, continuous viewpoints and no need of any observation glasses and special illumination, the technology stands out in the technical field of three-dimensional imaging and display, and is gradually developed into the most potential and promising autostereoscopic display technology.

The microlens array is a core optical device of a stereoscopic display, and has important influence on the aspects of imaging quality, stereoscopic effect, stereoscopic data comfort and the like. The 2D display and the 3D display can be switched, even can be displayed on the same screen, and are the development direction of the naked eye 3D display field. How to design and prepare a microlens array which can rapidly switch between 2D display and 3D display and has low cost becomes the focus of industry competition.

Disclosure of Invention

The embodiment of the invention provides a lens array, a preparation method thereof and a display panel, and aims to realize the rapid switching of 2D display and 3D display by coating metal films on lens units in the lens array and forming gaps among the metal films on the lens units so that each lens unit can be driven independently, and further controlling the on-off state of liquid crystal corresponding to each lens unit to modulate light entering the display panel.

In order to solve the above problem, in a first aspect, the present application provides a lens array, which includes a lens substrate, and a plurality of lens units disposed above the lens substrate;

the lens unit is characterized in that metal film layers are formed on the surfaces of the lens units, and gaps exist between the metal film layers on the surfaces of two adjacent lens units in the lens units.

Optionally, the gap is located on a surface of the lens unit.

Optionally, the lens array further includes an electrode wire, one end of the electrode wire is connected to the metal film layer circuit, and the other end of the electrode wire extends to the side of the lens substrate.

In a second aspect, the present application provides a method of manufacturing a lens array, the method comprising:

providing a substrate;

preparing a plurality of lens units over the substrate;

and carrying out metal coating on the plurality of lens units to obtain metal film layers, wherein gaps exist between the metal film layers above two adjacent lens units.

Optionally, performing metal plating on the plurality of lens units to obtain a metal film layer, where a gap exists between the metal film layers on two adjacent lens units, includes:

performing a metal plating film over a part of the plurality of lens units to form a first metal film;

and performing metal plating on another part of the plurality of lens units to form a second metal film spaced apart from the first metal film.

Optionally, the metal plating over a part of the plurality of lens units to form a first metal film includes:

coating photoresist on the plurality of lens units to obtain a first photoresist layer;

exposing the first photoresist layer through a first mask plate to remove the first photoresist layer above a part of the lens units in the plurality of lens units;

performing metal coating on the first photoresist layer and the part of the lens units to obtain a first metal film layer;

and cleaning the first photoresist layer and the first metal film layer to remove the first photoresist layer and the first metal film layer on the first photoresist layer to obtain a first metal film.

Optionally, the first mask includes a first light-transmitting area and a first light-shielding area, the first light-transmitting area and the first light-shielding area are distributed in a crossed cycle, and in a distribution direction of the first light-transmitting area and the first light-shielding area, a width of the first light-transmitting area is smaller than a width of the first light-shielding area adjacent to the first light-transmitting area.

Optionally, the metal plating over another part of the plurality of lens units to form a second metal film spaced apart from the first metal film includes:

covering a second mask plate above the lens unit, wherein the second mask plate comprises a second light transmitting area and a second light shading area, and the second light shading area is arranged corresponding to the first metal film;

coating photoresist on the second mask plate to obtain a second photoresist layer;

removing the second mask plate to form a via hole at a position of the second photoresist layer corresponding to the second shading area;

performing metal coating on the second photoresist layer and the other part of the lens unit to obtain a second metal film layer;

and exposing and cleaning the second photoresist layer to remove the second photoresist layer and the second metal film layer on the second photoresist layer to obtain a second metal film.

Optionally, the second mask includes a second light-transmitting area and a second light-shielding area, the second light-transmitting area and the second light-shielding area are distributed in a cross cycle, and in a distribution direction of the second light-transmitting area and the second light-shielding area, a width of the second light-transmitting area is greater than or equal to a width of the second light-shielding area.

In a third aspect, the present application further provides a display panel, where the display panel includes at least two stacked lens arrays, and liquid crystal is filled between two adjacent lens arrays.

Has the advantages that: according to the preparation method of the lens array, the lens array and the display panel provided by the embodiment of the invention, the metal film layers are formed on the surfaces of the lens units in the lens array, and the gaps exist between the metal film layers on the surfaces of two adjacent lens units in the lens units, so that the metal film layers on each lens unit can be independently driven, the on-off state of the liquid crystal corresponding to each lens unit is further controlled, the light entering the display panel is modulated, and the 2D display and the 3D display are rapidly switched.

Drawings

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

FIG. 1 is a schematic structural diagram of a lens array according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a method for manufacturing a lens array according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a lens array after lens units are prepared according to an embodiment of the present invention;

FIG. 4 is a flowchart illustrating a process of plating a metal film according to an embodiment of the present invention;

FIG. 5 is a flow chart illustrating an embodiment of the present invention for preparing a first metal film;

FIG. 6 is a schematic view of an embodiment of a lens array after a first metal plating process is performed according to the present invention;

FIG. 7 is a schematic view of an embodiment of a lens array with a first metal film formed thereon according to the present invention;

FIG. 8 is a flow chart illustrating one embodiment of the present invention for forming a second metal film;

fig. 9 is a schematic structural view of an embodiment of the array substrate covering a second mask plate and coated with a second photoresist according to the present invention;

fig. 10 is a schematic structural diagram of a display panel according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known arrays and processes have not been described in detail in order to avoid obscuring the description of the present invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the invention provides a lens array, a preparation method thereof and a display panel. The following are detailed below.

The invention provides a lens array, which comprises a lens substrate, wherein at least one row of lens units is arranged above the lens substrate. A metal film layer is formed on the surface of each lens unit, and a gap exists between the metal film layers on the surfaces of two adjacent lens units in each lens unit.

According to the lens array provided by the invention, the metal film layers are formed on the surfaces of the lens units in the lens array, and the gap exists between the metal film layers on the surfaces of two adjacent lens units in the lens array, so that the metal film layers on each lens unit can be independently driven, the on-off state of the liquid crystal in the display area corresponding to each lens unit is further switched, the light entering the display panel is modulated, and the quick switching between 2D display and 3D display is realized.

Specifically, as shown in fig. 1, a schematic structural diagram of an embodiment of the lens array provided by the present invention is shown. The lens array 10 according to an embodiment of the present invention includes a lens substrate 101, and a plurality of lens units 102 are disposed above the lens substrate 101. Meanwhile, a metal film layer 103 is formed on a surface of at least one lens unit 102.

In an embodiment of the present invention, there are a plurality of lens units 102 above the lens array 10, and the upper surfaces of the plurality of lens units 102 are all formed with the metal film layer 103, and there is a gap between the metal film layers 103 on the surfaces of two adjacent lens units 102, that is, the metal film layers 103 on the upper surfaces of two adjacent lens units 102 are not connected together.

A metal film layer 103 may be formed on the upper surface of each lens unit 102 in the plurality of lens units 102, and a gap exists between the metal film layers 103 on the surfaces of any two adjacent lens units 102; the metal film layer 103 may be formed on the upper surface of a part of the lens units 102 in the plurality of lens units 102, and when the metal film layer 103 is formed on the upper surface of two adjacent lens units 102, a gap exists between the metal film layers 103 on the surfaces of two adjacent lens units 102.

In some embodiments of the present invention, the lens unit 102 may be a cylindrical lens, and the material thereof may be a transparent plastic material such as acrylic, and may also be quartz glass. Specifically, the lens unit 102 may be a planar convex mirror having a certain thickness, and the gap may be formed on the surface of the lens unit 102, i.e., the gap may be formed on the convex surface of the lens unit 102.

In other embodiments of the present invention, when the lens units 102 are manufactured, the lens units 102 may be manufactured in a shape that a certain gap is formed between two adjacent lens units 102, so that independence between the adjacent lens units is ensured, and the lens units 102 may be driven individually. At this time, the gap of the metal film layer 103 may be a gap existing between two adjacent lens units 102. That is, the metal film layer 103 is broken by a gap existing between two adjacent lens units 102, and is formed on the surface of the lens unit 102. Thus, the gap between the metal films 103 is prepared, and the preparation process is simple and easy to realize.

The lens array 10 of the present invention may further include an electrode wire, one end of the electrode wire is electrically connected to the metal film 103, and the other end of the electrode wire extends to the side of the lens substrate 101, so as to control the voltage of the lens unit 102 by powering on or powering off the electrode wire. In the lens array 10, the lens units 102 may be arranged in a periodic array.

The invention also provides a method for manufacturing a lens array, as shown in fig. 2, which is a flowchart of an embodiment of the method for manufacturing a lens array provided by the invention. The method comprises the following steps:

20. a substrate is provided.

21. A plurality of lens units are prepared over a substrate.

23. And carrying out metal coating on the plurality of lens arrays to obtain metal film layers, wherein gaps exist between the metal film layers above the two adjacent lens units.

According to the preparation method of the lens array, the metal film layers are formed on the surfaces of the lens units in the lens array, and the gaps exist between the metal film layers on the surfaces of two adjacent lens units in the lens array, so that the metal film layers on each lens unit can be independently driven, the on-off state of the liquid crystal corresponding to each lens unit is further controlled, light entering the display panel is modulated, and the 2D display and the 3D display are rapidly switched.

Fig. 3 is a schematic structural diagram of an embodiment of a lens array after a lens unit is prepared according to the present invention. The process and method for preparing the plurality of lens units 102 on the lens substrate 101 can refer to the prior art, and is not limited herein.

In the above embodiment, when the plurality of lens units 102 are prepared, the plurality of lens units 102 may be prepared such that there is a gap between two adjacent lens units 102, or there is no gap between two adjacent lens units 102.

As shown in fig. 4, which is a flowchart of an embodiment of step 23 provided by the present invention, in some embodiments of the present invention, performing a metal plating on a plurality of lenses to obtain a metal film layer, where a gap exists between the metal films on two adjacent lens units, may include:

30. a metal plating film is formed over a portion of the plurality of lens units to form a first metal film.

31. And performing metal plating on the other part of the lens units to form a second metal film spaced from the first metal film.

Specifically, the lens unit 102 may be metal-plated twice, such that the surface of one part of the plurality of lens units is covered with the first metal film, and the surface of another part of the plurality of lens units is covered with the second metal film. And a gap exists between the first metal film and the second metal film, so that the first metal film and the second metal film are prevented from being connected, and the first metal film and the second metal film cannot be electrified and conducted independently.

And the electrode leads are in circuit connection with the metal film layer on the surface of the lens unit 102 so that the voltage across the metal film layer is controlled by energizing and de-energizing the electrode leads.

As shown in fig. 5, which is a flowchart of an embodiment of step 30 provided in the present invention, in some embodiments of the present invention, step 30 may include:

40. a photoresist is coated over the plurality of lens cells to obtain a first photoresist layer.

41. And exposing the first photoresist layer through the first mask plate, and removing the first photoresist layer above a part of the lens units in the plurality of lens units.

42. And performing metal coating on the first photoresist layer and a part of the lens units to obtain a first metal film layer.

43. And cleaning the first photoresist layer and the first metal film layer to remove the first photoresist layer and the first metal film layer on the first photoresist layer to obtain the first metal film.

Specifically, a first photoresist 105 is coated on the lens unit after the preparation, and a first mask 104 is covered on the first photoresist 105, where the first mask 104 includes a first light-transmitting area and a first light-shielding area, and a boundary of the first light-transmitting area and the first light-shielding area is overlapped with a boundary of the lens unit 102. The first light-transmitting areas and the first light-shielding areas are distributed in a crossed periodic manner, the period of the first mask 104 is L1, the period of the lens unit 102 is L0, and the period of the first mask 104 is twice that of the lens unit 102, namely L1 is 2L 0; the first light-transmitting area and the first light-shielding area correspond to one lens unit 102, respectively. In the first mask 104, the width of the first light-transmitting area is smaller than the width of the adjacent first light-shielding area in the distribution direction of the first light-transmitting area and the first light-shielding area.

When a gap exists between two adjacent lens units 102, in one period of the distribution of the light-shielding region and the light-transmitting region of the first mask 104, the width of the first light-transmitting region is smaller than that of the first light-shielding region adjacent to the first light-transmitting region. In one embodiment of the present invention, the width of the first light-shielding region may be the sum of the width of the gap between two adjacent lens units 102 and the width of the first light-transmitting region. With this arrangement, it is possible to prevent the gap between two adjacent lens units 102 from being plated with a metal film when metal plating is performed, so that there is no gap in the metal film layer 103.

On the basis of the above embodiment, after the first mask 104 is covered on the first photoresist 105, the lens unit is exposed to ultraviolet light, and the first photoresist on the portion of the lens unit corresponding to the first light-transmitting area is removed. And performing a first metal plating on the first photoresist and a part of the lens units in the plurality of lens units, wherein the specific method and process for performing the metal plating can refer to the prior art, and is not limited herein.

In the above embodiments, the first photoresist is a negative photoresist, i.e., the photoresist remains after exposure. After the first metal plating is performed, the plurality of lens units are cleaned, and since the first mask 104 has a first light-shielding region, and at this time, the first photoresist 105 above the lens unit 102 corresponding to the first light-shielding region is not corroded by ultraviolet rays, through cleaning, the first photoresist 105 above the lens unit 102 corresponding to the first light-shielding region is cleaned, and simultaneously, the first metal plating above the lens unit 102 corresponding to the first light-shielding region is cleaned, and the first metal plating above the lens unit corresponding to the first light-transmitting region is plated with the first metal film. Fig. 6 is a schematic view of an embodiment of a lens array after a first metal plating is performed according to the present invention. The first metal film is formed above a part of lens units in the lens array, the first metal film is not arranged above the other part of lens units in the lens array, and the lens units above which the first metal film is arranged and the lens units without the first metal film are distributed in a crossed periodic mode.

At this time, the first mask 104 is removed, the first photoresist 105 remains above the lens unit corresponding to the first light-shielding region, the first photoresist 105 is subjected to ultraviolet exposure cleaning, and the first photoresist 105 above the lens unit 102 corresponding to the first light-shielding region is removed, so that the first metal film is obtained. Fig. 7 is a schematic view of an embodiment of a lens array having a first metal film formed thereon according to the present invention. The number of the lens units 102 covered with the first metal film may be one or more, and when the number of the lens units 102 covered with the first metal film is plural, the lens units covered with the first metal film and the lens units without the first metal film are distributed with a cross period.

In some embodiments of the present invention, after the first metal film is obtained by performing metal plating on the lens array, a second metal film is further required to be obtained by performing metal plating on the lens array for a second time. As shown in fig. 8, which is a flowchart of an embodiment of step 31 provided in the present invention, the step may include:

50. and covering a second mask plate above the lens units, wherein the second mask plate comprises a second light transmitting area and a second light shading area, and the second light shading area is arranged corresponding to the lens units without the first metal film.

51. And coating photoresist on the second mask plate to obtain a second photoresist layer.

52. And removing the second mask plate to enable the second photoresist layer to form a through hole at the position corresponding to the second shading area.

53. And carrying out metal coating on the second photoresist layer and the other part of the lens unit to obtain a second metal film layer.

54. And exposing and cleaning the second photoresist layer to remove the second photoresist layer and the metal film layer on the second photoresist layer to obtain a second metal film.

Specifically, after the first metal film is prepared, a second mask 501 is covered above the lens array, the second mask 501 includes a second light-transmitting area and a second light-shielding area, and a boundary of the second light-transmitting area and the second light-shielding area is overlapped with a boundary of the lens unit 102; the second light-shielding regions and the second light-transmitting regions are distributed in a crossed periodic manner, and the second light-shielding regions are disposed corresponding to the lens units 102 that are not coated with the first metal film. The period of the second mask is L2, the period of the lens unit 102 is L0, and the period of the second mask is twice the period of the lens unit 102, i.e., L2 is 2L0, and at this time, the period of the first mask is equal to the period of the second mask, i.e., L1 is L2; the second light-transmitting area and the second light-shielding area correspond to one lens unit 102, respectively. In the second reticle 501, the width of the second light-shielding region is greater than or equal to the width of the second light-transmitting region adjacent thereto in the distribution direction of the second light-transmitting region and the second light-shielding region.

In some embodiments of the present invention, after covering the second reticle 501, a second photoresist 502 is applied over the entirety of the second reticle 501. As shown in fig. 9, which is a schematic structural view of an embodiment of the array substrate after covering the second mask plate and coating the second photoresist provided by the present invention, in this embodiment, the second photoresist 502 is a positive photoresist, that is, the photoresist is dissolved after being exposed to ultraviolet light. Then, the second mask 501 is removed, and at this time, the second photoresist 502 does not exist above the portion of the lens unit 102 corresponding to the second light-shielding region, and the second photoresist 502 exists above the portion of the lens corresponding to the second light-transmitting region.

And performing a second metal plating on the surface of the lens unit 102 from which the second mask is removed, wherein the second metal film is formed on the whole upper part of the lens unit 102. Then, the lens unit 102 is exposed to ultraviolet light, at this time, a second photoresist is formed above the lens unit corresponding to the second light transmission region, and a metal film layer is formed above the second photoresist, but due to the ultraviolet exposure of the second photoresist, the second photoresist above the lens unit 102 corresponding to the second light transmission region is dissolved and removed, and at the same time, the second metal film above the second photoresist is removed.

At this time, a second metal film is formed above the lens unit 102 corresponding to the second light-shielding region, a first metal film is formed above the lens unit 102 corresponding to the first light-transmitting region, and a gap exists between the first metal film and the second metal film, that is, the first metal film and the second metal film are not connected and conducted.

In some embodiments of the present invention, the first metal film and the second metal film may be the same or different in material, but a gap exists between the first metal film and the second metal film, i.e., the first metal film and the second metal film cannot be connected.

In other embodiments of the present invention, performing a metal plating on a plurality of lenses to obtain a metal film layer, where a gap exists between the metal films on two adjacent lens units, may include:

and carrying out metal coating on the plurality of lens units to form a metal film layer, wherein the metal film layer is positioned above the plurality of lens units, and a gap exists between corresponding parts of the metal film layer above each lens unit.

Specifically, a plurality of lens units may be subjected to metal plating once to obtain a required metal film layer, at this time, a mask plate required for metal plating includes a light-shielding region and a light-transmitting region, in a distribution direction of the lens units 102, a width corresponding to the light-shielding region is smaller than a width corresponding to the light-transmitting region, and the width of the light-shielding region is the same as a width of a gap between two adjacent lens units 102. At this time, the photoresist coated over the lens cell is a negative photoresist. The method and steps for metal plating the lens unit can refer to the prior art, and are not limited herein.

As shown in fig. 10, which is a schematic structural diagram of an embodiment of the display panel provided by the present invention, the display panel 60 may include a first lens array 601 and a second lens array 602, where the first lens array 601 and the second lens array 602 both include a plurality of lens units 102, and the first lens array 601 and the second lens array 602 are stacked, the first lens array 601 and the second lens array 602 form an irregular rhombic lens, and liquid crystal is filled between the two lens arrays.

Specifically, a metal film layer is formed above the first lens array 601, and a metal film layer is also formed above the second lens array 602; the display panel 60 further includes a plurality of electrode wires, each of the electrode wires includes a first electrode wire and a second electrode wire, the first electrode wires and the second electrode wires are respectively connected to the lens units in the first lens array 601, and the second electrode wires are respectively connected to the lens units in the second lens array 602. The voltages at two ends of the lens unit 102 in the first lens array 601 and the voltages at two ends of the lens unit 102 in the second lens array 602 can be controlled respectively by applying external voltages, so that the voltage difference between the first lens array 601 and the second lens array 602 is controlled, the on-off state of the liquid crystal is controlled, and the 2D display and the 3D display are rapidly switched.

Specifically, when the liquid crystal state is closed, the first lens array 601 and the second lens array 602 are equivalent to a transparent material, and the irregular rhombic lens formed by the two lens arrays can modulate light passing through the front surface and the rear surface of the irregular rhombic lens, so that 3D display can be performed; when the liquid crystal state is in an on state, the refractive index of the whole structure of the irregular diamond lens is close to be consistent and is equivalent to transparent glass, so that the capability of modulating light rays is lost, and 2D display can be carried out.

It should be noted that, in the above embodiment of the display panel, only the array is described, and it is understood that, in addition to the array, the display panel according to the embodiment of the present invention may further include any other necessary array, such as a buffer layer, an inter-layer dielectric (ILD), etc., as needed, and the details are not limited herein.

By adopting the lens array as described in the above embodiments, the display effect of the display panel is further improved.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.