CN113036052A - Display panel, preparation method thereof and display device - Google Patents
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- CN113036052A CN113036052A CN202110218875.9A CN202110218875A CN113036052A CN 113036052 A CN113036052 A CN 113036052A CN 202110218875 A CN202110218875 A CN 202110218875A CN 113036052 A CN113036052 A CN 113036052A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0058—Processes relating to semiconductor body packages relating to optical field-shaping elements
Abstract
An object of the present application is to provide a display panel, a method for manufacturing the same, and a display device, wherein the display panel includes: the display substrate comprises a plurality of pixel units, and each pixel unit is provided with a light emergent side; the light distribution layer is arranged on the display substrate and positioned on the light emergent side of the pixel unit, and comprises a plurality of lenses corresponding to the pixel unit; wherein the orthographic projection area of each lens on the display substrate is smaller than the area of the corresponding pixel unit. According to the technical scheme, the light distribution layer is additionally arranged on the light emitting side of the display substrate, and the micro lens is realized through a photoetching method, so that the mass production requirement can be realized, and the problems of visual angle, brightness, color cast and the like of the display panel can be effectively solved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a manufacturing method thereof, and a display device using the display panel.
Background
Since the OLED Display panel (Organic Light Emitting Display) has the excellent characteristics of self-luminescence, no need of a backlight source, high contrast, thin thickness, wide viewing angle, fast response speed, applicability to a flexible panel, wide temperature range, simple structure and process, etc., it is considered as a new application technology of the next generation of flat panel Display devices. But it also has its own drawbacks, on the one hand, the OLED is less bright and less stable than other displays; on the other hand, for the inkjet printed OLED device, there is a risk of color shift in viewing angle due to the microcavity effect of the R/G/B pixel light emitting device in the inkjet printed OLED display panel.
In order to improve the viewing angle and brightness of the OLED, many methods have been proposed, for example, a scheme of adding scattering particles into a TFE film encapsulation layer is proposed, which has its own advantages, but there is a problem that TFE is a functional layer for isolating water and oxygen in the film encapsulation layer, and after the scattering particles are doped, if dispersion is not uniform or other reasons, TFE may partially penetrate up and down, which may affect the encapsulation effect. And the prior technical proposal is difficult to simultaneously improve the visual angle and the brightness in mass production.
Therefore, improvement is urgently needed to overcome the defects existing at present.
Disclosure of Invention
One of the objectives of the present disclosure is to provide a display panel and a method for manufacturing the same, in which a light distribution layer is added on a light emitting side of a display substrate, and a microlens is manufactured by a photolithography method, so that the requirement of mass production can be met, and the problems of viewing angle, brightness, color cast and the like of the display panel can be effectively solved.
Another objective of the present invention is to provide a display device, which increases a light distribution layer on the light exit side of a display substrate, and forms a microlens by a photolithography method, so as to improve the mass production and effectively solve the problems of viewing angle, brightness, color cast, and the like of a display panel.
The application provides a display panel, including: the display substrate comprises a plurality of pixel units, and each pixel unit is provided with a light emergent side; the light distribution layer is arranged on the display substrate and positioned on the light emergent side of the pixel unit, and comprises a plurality of lenses corresponding to the pixel unit; wherein the orthographic projection area of each lens on the display substrate is smaller than the area of the corresponding pixel unit.
Optionally, in some embodiments of the present application, each of the pixel units corresponds to a plurality of the lenses.
Optionally, in some embodiments of the present application, the orthographic projection areas of the lenses on the display substrate are each less than 1/3 of the area of the corresponding pixel cell.
Optionally, in some embodiments of the present application, the thickness and diameter of the lens are less than or equal to 20 um.
Optionally, in some embodiments of the present application, the lenses are convex lenses, and each of the lenses has a thickness gradually increasing from the edge to the center.
Optionally, in some embodiments of the present application, the thickness of the lens is different, and/or the diameter of the lens is different, and/or the orthographic projection area on the display substrate is different for different pixel units.
Optionally, in some embodiments of the present application, the lens comprises a transparent photoresist.
Correspondingly, the application also provides a preparation method of the display panel, which comprises the following steps: providing a display substrate, wherein the display substrate is provided with a plurality of pixel units, and the pixel units are provided with light emergent sides; depositing a layer of photoresist on the display substrate and on the light-emitting side of the pixel unit; and patterning the photoresist to form a light distribution layer, wherein the light distribution layer comprises a plurality of lenses, and the lenses correspond to the pixel units.
Optionally, in some embodiments of the present application, in the step of patterning the photoresist to form the light distribution layer, the photoresist needs to be irradiated with preset light and a preset photomask, so as to form the light distribution layer; when the photoresist is a positive photoresist, the preset photomask corresponding to a single lens is provided with a light-transmitting area, and the transmittance of the light-transmitting area is gradually reduced from the edge to the center; when the photoresist is a negative photoresist, the preset photomask corresponding to a single lens is provided with a light-transmitting area, and the transmittance of the light-transmitting area is gradually increased from the edge to the center.
Correspondingly, the application also provides a display device, which comprises the display panel in any one of the above embodiments.
Compared with the prior art, the display panel in the embodiment of the application is provided with the light distribution layer on the display substrate, the light distribution layer comprises a plurality of lenses arranged in an array, and the lenses can effectively solve the problem of poor visual angle of the display panel by changing the refraction angle of light penetrating through the display substrate; and the refractive index of the lens can be adjusted through different preset light shades in the preparation process, so that the problem of color cast of the display panel is solved. Furthermore, the orthographic projection area of the single lens on the display substrate is smaller than the area of the single pixel unit, namely the orthographic projection of the single lens on the display substrate falls into the single pixel unit, so that light can be emitted without affecting the overall brightness distribution of the display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced 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 is a schematic diagram of a structure of a display panel according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a second structure of the display panel in the embodiment of the present application;
FIG. 3 is a schematic diagram of a structure three of the display panel in the embodiment of the present application;
FIG. 4 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present disclosure;
FIG. 5 is a graph showing the relationship between the residual film thickness and the amount of light irradiated during the production of one material of the light distribution layer in the example of the present application;
FIG. 6 is a graph showing the relationship between the residual film thickness and the amount of light irradiated during the production of another material for the light-distributing layer described in the examples of the present application.
Description of the main reference numerals:
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless otherwise stated, the use of directional terms such as "upper", "lower", "left" and "right" may refer to the actual use or operation of the device, may refer to the drawing direction in the drawings, and may refer to two opposite directions; while "inner" and "outer" are with respect to the outline of the device.
Specifically, referring to fig. 1, the present application provides a display panel 100, including: a display substrate 110 and a light distribution layer 120, wherein the display substrate 110 includes a plurality of pixel units 111; the light distribution layer 120 is disposed on the light emitting side of the display substrate 110, and the light distribution layer 120 includes a plurality of lenses 121; wherein the forward projection area of the single lens 121 on the display substrate 110 is smaller than the area of the single pixel unit 111. In other words, the orthographic projection of a single lens 121 on the display substrate 110 falls within the single pixel unit 111.
The ratio of the forward projection area of the single lens 121 on the display substrate 110 to the area of the single pixel unit 111 is different, and the viewing angle and the brightness of the display panel 100 are different. Preferably, the area of the orthographic projection of the single lens 121 on the display substrate 110 is smaller than 1/3 of the area of the single pixel unit 111, so that the arrangement can ensure that the light emitted by the display substrate 110 passes through the light distribution layer 120, and the viewing angle can be improved without affecting the overall brightness distribution of the pixel unit 111 on the display substrate 110. It will be understood that, in general, a pixel is defined as being composed of small squares of an image, each of which has a distinct position and assigned color value, the color and position of the small squares determining how the image appears, and that a pixel can be considered as an indivisible unit or element in the entire image, meaning that it cannot be cut into smaller units or elements, and that it exists as a single color of small squares, each dot matrix image containing a certain number of pixels that determine the size of the image that appears on the screen. The pixel unit 111 in this application refers specifically to a single pixel.
In some embodiments of the present application, each of the lenses has a thickness and a diameter less than or equal to 20 um. The thickness of the single lens 121 is the vertical distance between the side of the lens 121 close to the display substrate 110 and the side of the lens 121 far away from the display substrate 110; the diameter of a single lens 121 is the length of the lens 121 in the longitudinal direction or the width direction of the display substrate 110. Preferably, the thickness and diameter of a single lens 121 are both between 3um and 10 um; the length and width of the single pixel unit 111 are between 30um and 200um, and in order to improve the viewing angle without affecting the overall brightness distribution of the pixel unit 111 on the display substrate 110, the thickness and diameter of the single lens 121 may be adjusted according to practical situations, for example: the thickness of the single lens 121 is 5um, the diameter is 8um, the length of the single pixel unit 111 is 50um, and the width is 30 um; the thickness of single lens 121 is 6um, and the diameter is 9um, and is single pixel unit 111's length is 40um, and the width is 35um etc. but this is not limiting.
In some embodiments of the present application, the lenses 121 are convex lenses, that is, the thickness of each lens 121 gradually increases from the edge to the center. The convex lenses disposed on the display substrate 121 can diffuse the light emitted from the pixel units 111, so that the refractive index of the light emitted from the display substrate 110 is changed, thereby improving the viewing angle.
Further, in some embodiments of the present application, refractive indexes of the lenses 121 in the light distribution layer 120 located in different regions of the display substrate 110 are different, and can be adjusted according to specific situations, so that the viewing angle can be improved, and the display effect of the display panel 100 can be improved. In particular, the size of several of the lenses 121 in the light distribution layer 120 located in different areas of the display substrate 110 may be adjusted, for example: the thickness and diameter of the lens 121.
In some embodiments of the present application, the plurality of lenses 121 are disposed on the light-emitting side of the display substrate 110. That is, the lenses 121 are uniformly distributed on the display substrate 110 and are disposed corresponding to the pixel units 111, and one or more lenses 121 may be corresponding to each pixel unit 111; preferably, each pixel unit 111 has at least 3 lenses 121. It is understood that the present application does not limit the number relationship between the lens 121 and the pixel unit 111.
In an embodiment of the present application, the pixel unit 111 includes: the pixel structure comprises a red pixel unit, a green pixel unit and a blue pixel unit; the lenses 121 corresponding to the pixel units 111 of different colors may be slightly different, specifically, the lenses 121 have different thicknesses or different diameters, or the forward projection areas of the lenses 121 on the display substrate 110 are different. For example, in an OLED display panel, due to differences in luminous efficiency and lifetime of RGB three colors, an unequal-area RGB layout design is generally used, in which a blue pixel cell has a larger area than a red pixel cell and a green pixel cell. Therefore, in the present embodiment, at least one of the thickness, the diameter and the forward projection area of the lens 121 corresponding to the pixel units 111 with different colors is set to be different, so that the problem of color shift of the viewing angle generated in the OLED display panel can be effectively improved.
Referring to fig. 1 to fig. 3, in some embodiments of the present disclosure, the lenses 121 in the light distribution layer 120 may be connected as a whole as shown in fig. 2, or may be disposed on the display substrate 110 independently as shown in fig. 1. When the lenses 121 are connected to each other as a whole, the specific connection mode is not described in detail in this application.
As shown in fig. 3, the cross section of the lens 121 may be at least one of circular arc, trapezoid, rounded trapezoid, and triangle, but not limited thereto. As shown in fig. 3, the light distribution layer 120 in the display panel 100 in the present application may include a plurality of different types of lenses 121 at the same time, or may include only one type of lens 121, and because the refractive indexes of the different types of lenses 121 are different, the different types of lenses 121 may be correspondingly disposed on the pixel units 111 with different colors, so that the problem of color shift of viewing angle generated in the OLED display panel may be further improved.
In the present application, the display substrate 110 is preferably an OLED display substrate, but is not limited thereto, and may also be a TFT-LCD display substrate, a micro LED display substrate, or other types of display substrates. The light distribution layer 120 includes a transparent photoresist, but is not limited to the type of the transparent photoresist, and may be, for example, a positive photoresist or a negative photoresist.
Specifically, referring to fig. 4, the present application provides a method for manufacturing the display panel 100, including the following steps:
step S1: providing a display substrate 110, wherein the display substrate 110 is provided with a plurality of pixel units 111, and the pixel units 111 have light-emitting sides;
step S2: depositing a layer of photoresist on the display substrate 110 and on the light-emitting side of the pixel unit 111; and the number of the first and second groups,
step S3: patterning the photoresist forms a light distribution layer 120, wherein the light distribution layer 120 includes a number of lenses 121, and the lenses 121 correspond to the pixel units 111.
In step S3, the photoresist is irradiated with preset light and a preset mask to form the light distribution layer.
It can be understood that the photoresist can be divided into a negative photoresist and a positive photoresist according to the chemical reaction mechanism and the development principle of the photoresist, and the negative photoresist which forms insoluble substances after illumination is the negative photoresist; conversely, a positive photoresist is insoluble in some solvents and becomes soluble after being irradiated by light.
Referring to fig. 5, when the transparent photoresist is a positive photoresist, and the irradiation amount of the preset light received by the positive photoresist reaches a certain threshold value in the same irradiation time, the higher the irradiation amount (Exposure Dose) of the preset light received by the positive photoresist is, the smaller the residual film Thickness (Resist Thickness) of the positive photoresist after the positive photoresist is developed is, that is, when the irradiation amount of the preset light received by the positive photoresist reaches the certain threshold value, the irradiation amount of the preset light received by the positive photoresist is inversely proportional to the residual film Thickness of the positive photoresist after the positive photoresist is developed. It can be understood that, in the region where the transmittance of the light-transmitting region of the predetermined mask is higher, the higher the irradiation amount of the predetermined light to which the positive photoresist is subjected, the smaller the residual film thickness of the corresponding positive photoresist after the developing process, that is, the smaller the thickness of the single lens 121 corresponding to the region where the transmittance of the light-transmitting region of the predetermined mask is higher.
Referring to fig. 6, when the transparent photoresist is a negative photoresist, and the irradiation amount of the preset light received by the negative photoresist reaches a certain threshold value in the same illumination time, the higher the irradiation amount of the preset light received by the negative photoresist is, the larger the residual film thickness of the positive photoresist corresponding to the negative photoresist after the negative photoresist is developed is, that is, when the irradiation amount of the preset light received by the negative photoresist reaches the certain threshold value, the irradiation amount of the preset light received by the negative photoresist is proportional to the residual film thickness of the positive photoresist corresponding to the negative photoresist after the negative photoresist is developed. As can be understood from the above description, the higher the transmittance of the light-transmitting region of the predetermined mask is, the higher the irradiation amount of the predetermined light to which the negative photoresist is subjected is, the larger the residual film thickness of the corresponding negative photoresist after development is passed, that is, the larger the thickness of the single lens 121 corresponding to the region of the predetermined mask in which the transmittance is higher is.
Therefore, in the process of preparing the light distribution layer 120, when the transparent photoresist is a positive photoresist, the transmittance of the light-transmitting region of the predetermined mask corresponding to the single lens 121 gradually decreases from the edge to the center; when the photoresist is a negative photoresist, the transmittance of the light-transmitting region of the predetermined mask corresponding to the single lens 121 gradually increases from the edge to the center. In this application, the thickness of the lens 121 is changed by the predetermined mask with the changed transmittance, so as to change the thickness and the diameter of the lens 121, that is, to change the curvature of the lens 121, thereby forming the lens 121 with different refractive indexes.
The present application also provides a display device including the display panel 100. The display device can be an intelligent mobile terminal device with a display function, such as a mobile phone, a computer, an intelligent watch, a vehicle-mounted display screen and the like, and the application is not limited.
In summary, in the display panel 100 of the present embodiment, the light distribution layer 120 is added on the display substrate 110, the light distribution layer 120 includes a plurality of lenses 121 arranged in an array, and the lenses 121 can effectively improve the problem of poor viewing angle of the display panel 100 by changing the refraction angle of the light passing through the display substrate 110; and the refractive index of the lens 121 can be adjusted through different predetermined light masks during the manufacturing process, so as to improve the problem of color shift of the display panel 100. Further, the area of the orthographic projection of the single lens 121 on the display substrate 110 is smaller than the area of the single pixel unit 111, that is, the orthographic projection of the single lens 121 on the display substrate 110 falls into the single pixel unit 111, so that light can be emitted without affecting the overall brightness distribution of the display panel 100.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display panel 100, the manufacturing method thereof, and the display device provided in the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display panel, characterized in that: the method comprises the following steps:
the display substrate comprises a plurality of pixel units, and each pixel unit is provided with a light emergent side;
the light distribution layer is arranged on the display substrate and positioned on the light emergent side of the pixel unit, and comprises a plurality of lenses corresponding to the pixel unit; wherein the content of the first and second substances,
the orthographic projection area of each lens on the display substrate is smaller than the area of the corresponding pixel unit.
2. The display panel of claim 1, wherein: each pixel unit corresponds to a plurality of lenses.
3. The display panel of claim 1, wherein: the orthographic projection areas of the lenses on the display substrate are all smaller than 1/3 of the area of the corresponding pixel unit.
4. The display panel of claim 1, wherein: the thickness and the diameter of the lens are both less than or equal to 20 um.
5. The display panel of claim 1, wherein: the lenses are convex lenses, and the thickness of each lens is gradually increased from the edge to the center.
6. The display panel of claim 1, wherein: the lenses corresponding to different pixel units have different thicknesses and/or different diameters and/or different orthographic projection areas on the display substrate.
7. The display panel of claim 1, wherein: the lens comprises a transparent photoresist.
8. A method for manufacturing a display panel according to claim 1, characterized in that: the method comprises the following steps:
providing a display substrate, wherein the display substrate is provided with a plurality of pixel units, and the pixel units are provided with light emergent sides;
depositing a layer of photoresist on the display substrate and on the light-emitting side of the pixel unit; and
and patterning the photoresist to form a light distribution layer, wherein the light distribution layer comprises a plurality of lenses, and the lenses correspond to the pixel units.
9. The method for manufacturing a display panel according to claim 8, wherein: in the step of patterning the photoresist to form a light distribution layer, a preset light and a preset photomask are required to be used for irradiating the photoresist to form the light distribution layer;
when the photoresist is a positive photoresist, the preset photomask corresponding to a single lens is provided with a light-transmitting area, and the transmittance of the light-transmitting area is gradually reduced from the edge to the center;
when the photoresist is a negative photoresist, the preset photomask corresponding to a single lens is provided with a light-transmitting area, and the transmittance of the light-transmitting area is gradually increased from the edge to the center.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 7.
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| CN202110218875.9A CN113036052A (en) | 2021-02-26 | 2021-02-26 | Display panel, preparation method thereof and display device |
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| CN202110218875.9A CN113036052A (en) | 2021-02-26 | 2021-02-26 | Display panel, preparation method thereof and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023800A (en) * | 2021-11-02 | 2022-02-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| WO2023178777A1 (en) * | 2022-03-24 | 2023-09-28 | Tcl华星光电技术有限公司 | Display panel and display device |
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