CN212517208U - Display panel and display device - Google Patents
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- CN212517208U CN212517208U CN202021675072.3U CN202021675072U CN212517208U CN 212517208 U CN212517208 U CN 212517208U CN 202021675072 U CN202021675072 U CN 202021675072U CN 212517208 U CN212517208 U CN 212517208U
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Abstract
The disclosure provides a display panel and a display device. The display panel comprises a substrate, a pixel defining layer, a light emitting unit and a color film layer. The pixel defining layer is disposed on the substrate base plate and includes a pixel opening. The light-emitting unit is arranged in the pixel opening and comprises an anode, a light-emitting layer and a cathode which are arranged in a stacked mode along the direction far away from the substrate base plate, and the cathode covers the pixel defining layer. The color film layer is arranged on one side of the cathode, which is far away from the substrate base plate, and comprises a color block and a black matrix surrounding the color block, and the orthographic projection of the pixel opening on the substrate base plate is positioned in the orthographic projection area of the color block on the substrate base plate. At least a partial region of the pixel defining layer corresponding to a surface of the color resist block partially covered with the cathode is rugged. The display panel can reduce the reflectivity of the display panel to ambient light.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
The organic electroluminescent display is a new generation of display products following the liquid crystal display, and is becoming the mainstream and leading people in the display field due to its better color saturation, fast response speed, foldability, light weight and other properties.
Currently, a display panel of an organic electroluminescent display includes a substrate, a driving circuit layer, a light emitting unit, and a polarizer. The drive circuit layer is arranged on the substrate, the light-emitting unit is arranged on one side of the drive circuit layer, which is far away from the substrate, and the polaroid is arranged on one side of the light-emitting unit, which is far away from the substrate. In order to reduce the thickness of the display panel, the color film layer is used to replace the polarizer. However, the display panel has high reflectivity to ambient light, which affects the display effect.
SUMMERY OF THE UTILITY MODEL
An object of the present disclosure is to provide a display panel and a display device, which can reduce the reflectivity of the display panel to the ambient light.
According to an aspect of the present disclosure, there is provided a display panel including:
a substrate base plate;
a pixel defining layer disposed on the substrate and including a pixel opening;
the light-emitting unit is arranged in the pixel opening and comprises an anode, a light-emitting layer and a cathode which are arranged in a stacked mode along the direction far away from the substrate base plate, and the cathode covers the pixel defining layer;
the color film layer is arranged on one side of the cathode, which is far away from the substrate base plate, and comprises a color block and a black matrix surrounding the color block, and the orthographic projection of the pixel opening on the substrate base plate is positioned in the orthographic projection area of the color block on the substrate base plate;
wherein at least a partial region of the pixel defining layer corresponding to a surface of the color resist block partially covered by the cathode is rugged.
Further, the side wall of the pixel opening in the thickness direction of the substrate base includes a first side wall and a second side wall connected to each other, the first side wall is located on a side of the second side wall away from the substrate base, the cathode covers the first side wall, and the first side wall is uneven.
Further, the second sidewall asperities are not flat.
Further, a plurality of steps are formed on the side wall of the pixel opening.
Further, the number of the steps is not more than 5 and not less than 2.
Further, the height of each step is greater than the thickness of the cathode.
Further, the thickness of the pixel defining layer is 1.5-3 μm, the thickness of the cathode is 10-16 nm, the thickness of the anode is 100-200 nm, and the thickness of the light emitting layer is 300-400 nm.
Further, the display panel further includes:
and the touch layer is arranged between the color film layer and the cathode.
Further, the display panel further includes:
and the packaging layer is arranged between the touch layer and the cathode.
According to an aspect of the present disclosure, there is provided a display device including the display panel of any one of the above.
According to the display panel and the display device, at least part of the area of the surface, corresponding to the color resistance block, of the pixel defining layer is uneven, of the surface covered by the cathode, so that the cathode covered on the uneven surface of the pixel defining layer is uneven, the reflectivity of the cathode is reduced, light reflected to the color resistance block from the cathode is reduced, the reflectivity of the display panel to ambient light is reduced, and meanwhile the color separation phenomenon of the display panel in a screen off state can be weakened.
Drawings
Fig. 1 is a schematic view of a display panel in the related art.
Fig. 2 is a reflection spectrum diagram of a display panel in the related art.
Fig. 3 is a schematic diagram of a display panel of an embodiment of the present disclosure.
Fig. 4 is a schematic diagram of a color film layer, a cathode, and a pixel defining layer of a display panel according to an embodiment of the disclosure.
Fig. 5 is a schematic view of a cathode and a pixel defining layer of a display panel according to an embodiment of the present disclosure.
Fig. 6 is a schematic diagram of a pixel defining layer of a display panel according to an embodiment of the disclosure.
Fig. 7 is another schematic diagram of a pixel defining layer of a display panel according to an embodiment of the disclosure.
Fig. 8 is a schematic view of a display panel of an embodiment of the disclosure at another viewing angle.
Description of reference numerals: 1. a substrate base plate; 2. a light emitting unit; 201. a cathode; 202. a light emitting layer; 203. an anode; 3. a pixel defining layer; 301. a side wall; 3011. a first side wall; 3012. a second side wall; 4. a color film layer; 401. a color block; 402. a black matrix; 5. a packaging layer; 6. a touch layer; 601. a first insulating layer; 602. a first metal layer; 603. a second insulating layer; 604. a second metal layer; 605. a third insulating layer; 7. a planarization layer; 8. a cover plate; 9. a blue light reflection peak; 10. a green light reflection peak; 11. red light reflection peak.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this disclosure 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 also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
In the related art, as shown in fig. 1, a display panel of the organic electroluminescent display includes a substrate 1, a pixel defining layer 3, a light emitting unit 2, and a color film layer 4. The pixel defining layer 3 and the light emitting unit 2 are both provided on the base substrate 1, and the pixel defining layer 3 surrounds the light emitting unit 2. The light-emitting unit 2 includes an anode 203, a light-emitting layer 202, and a cathode 201, which are sequentially stacked in a direction away from the base substrate 1. The cathode 201 covers the pixel defining layer 3. The color film layer 4 is disposed on a side of the light emitting unit 2 away from the substrate base plate 1. The color film layer 4 may include a color block 401 and a black matrix 402 surrounding the color block 401. The color block 401 is located in the area of the color film layer 4 corresponding to the light emitting unit 2. The ambient light enters the display through the color block 401, reaches the light-emitting unit 2, is reflected by the anode 203 and the cathode 201 of the light-emitting unit 2, and the formed reflected light is emitted through the color block 401, so that the display panel has a high reflectivity for the ambient light, and meanwhile, the display panel also generates a color separation phenomenon under the action of the reflected light.
In fig. 2, the ordinate of the coordinate system represents the reflectance, the abscissa represents the wavelength, L1 represents the reflectance curve of a display panel, and L2 represents the reflectance curve of the display panel after the anode 203 is removed. It can be seen that L1 and L2 each include a blue light reflection peak 9, a green light reflection peak 10, and a red light reflection peak 11. It can be seen that the reflected light mainly includes blue light, green light and red light, and since the blue light, the green light and the red light are emitted from the color resist blocks, the reflected light emitted from the color resist blocks 401 in the display panel contributes more reflectivity. In addition, the reflectance of L1 was calculated to be 6.4%, and the reflectance of L2 was calculated to be 4.7%. It can be seen that the display panel still maintains a large reflectivity under the condition that the anode 203 is removed and the cathode 201 is remained, and therefore, the cathode 201 has a large influence on the reflectivity of the display panel.
In order to solve the above technical problem, embodiments of the present disclosure provide a display panel. As shown in fig. 3, the display panel may include a substrate 1, a pixel defining layer 3, a light emitting unit 2, and a color film layer 4, wherein:
the pixel defining layer 3 may be provided on the base substrate 1. The pixel defining layer 3 may include a pixel opening. The light emitting unit 2 may be provided at the pixel opening. The light-emitting unit 2 includes an anode 203, a light-emitting layer 202, and a cathode 201, which are stacked in a direction away from the base substrate 1. The cathode 201 covers the surface of the pixel defining layer 3 facing away from the base substrate 1. The color film layer 4 can be disposed on a side of the cathode 201 away from the substrate base plate 1. The color film layer 4 may include a color block 401 and a black matrix 402 surrounding the color block 401. The orthographic projection of the pixel opening on the substrate 1 is located in the orthographic projection area of the color resist block 401 on the substrate 1. Wherein, at least a partial area of the pixel defining layer 3 corresponding to the surface of the color resist block 401 covered by the cathode 201 is rugged.
According to the display panel of the embodiment of the disclosure, at least a partial region of the surface of the pixel defining layer 3, which corresponds to the color resistance block 401 and is covered by the cathode 201, is uneven, so that the cathode 201 covered on the uneven surface of the pixel defining layer 3 is uneven, the reflectivity of the cathode 201 is reduced, the light reflected from the cathode 201 to the color resistance block 401 is reduced, the reflectivity of the display panel to ambient light is reduced, and meanwhile, the color separation phenomenon of the display panel in the screen off state can be weakened.
The following describes each part of the display panel according to the embodiment of the present disclosure in detail:
as shown in fig. 3, the base substrate 1 may include a substrate and a driving circuit layer. The substrate may be a flexible substrate, but the embodiments of the present disclosure are not particularly limited thereto. The driver circuit layer may be provided on the substrate. The driving circuit layer may include a driving transistor. The driving transistor may be a thin film transistor, but the disclosed embodiments are not limited thereto. The thin film transistor may be a top gate thin film transistor, and of course, the thin film transistor may also be a bottom gate thin film transistor. Taking the thin film transistor as a top gate thin film transistor as an example, the driving circuit layer may include an active layer, a gate insulating layer, a gate electrode, an interlayer insulating layer, a source electrode, and a drain electrode. The active layer may be disposed on the substrate. The active layer may include an undoped channel region, a source region, and a drain region. The gate insulating layer may be provided on the substrate and cover the active layer. The gate electrode may be provided on a side of the gate insulating layer remote from the substrate. The interlayer insulating layer may be disposed on the gate insulating layer and cover the gate electrode. The source and drain electrodes may be disposed on the interlayer insulating layer and coupled to the source and drain regions of the active layer via vias passing through the interlayer insulating layer and the gate insulating layer. In addition, the base substrate 1 may further include a passivation layer and a planarization layer. The passivation layer may be disposed on the interlayer insulating layer and cover the source and drain electrodes of the driving circuit layer. The planarization layer may be disposed on a side of the passivation layer away from the interlayer insulating layer.
As shown in fig. 3 to 5 and 8, the pixel defining layer 3 may be disposed on the substrate base plate 1. The pixel defining layer 3 may be disposed on a side of the planarization layer away from the driving circuit layer. The pixel defining layer 3 may include a pixel opening. The pixel opening may be flared, i.e. transverse to the pixel openingThe size of the cross section becomes gradually larger in a direction away from the base substrate 1. The included angle between the sidewall 301 of the pixel opening and the substrate 1 may be 1500-1600That is, the slope angle of the sidewall 301 of the pixel opening may be 200-300. In the thickness direction of the substrate base 1, the sidewall 301 of the pixel opening may include a first sidewall 3011 and a second sidewall 3012 connected to each other. The first side wall 3011 is located on a side of the second side wall 3012 away from the substrate base plate 1. The first side wall 3011, the second side wall 3012 and the side wall 301 of the pixel opening are all annular walls. In fig. 4 and 5, a region of the surface of the pixel defining layer 3 facing the cathode 201 between the imaginary line L4 and the imaginary line L7 is the first side wall 3011, and a region between the imaginary line L5 and the imaginary line L8 is the first side wall 3011. The material of the pixel defining layer 3 may be resin, and certainly, may also be polyimide, but the embodiment of the present disclosure is not particularly limited thereto. In addition, the thickness of the pixel defining layer 3 may be 1.5 μm to 3 μm, for example, 1.5 μm, 2 μm, 2.2 μm, 2.3 μm, 2.5 μm, 2.8 μm, 3 μm, etc., but the embodiment of the present disclosure is not limited thereto.
As shown in fig. 3 to 5, the light emitting unit 2 may be disposed in the pixel opening. The light-emitting unit 2 includes an anode 203, a light-emitting layer 202, and a cathode 201, which are stacked in a direction away from the base substrate 1. The anode 203 is disposed on the substrate 1 and electrically connected to the source or drain of the driving circuit layer, the light-emitting layer 202 is disposed on the side of the anode 203 away from the substrate 1, and the cathode 201 is disposed on the side of the light-emitting layer 202 away from the substrate 1. The anode 203 may be disposed on the planarization layer and electrically connected to the source or drain of the driving circuit layer through a via hole passing through the passivation layer and the planarization layer. The thickness of the anode 203 may be 100nm to 200nm, such as 100nm, 115nm, 150nm, 180nm, 190nm, 200nm, etc., but the embodiment of the present disclosure is not particularly limited thereto. The thickness of the light emitting layer 202 may be 300nm to 400nm, such as 300nm, 320nm, 335nm, 360nm, 3860nm, 400nm, etc., but the embodiment of the disclosure is not limited thereto. The cathode 201 may cover the surface of the pixel defining layer 3 facing away from the substrate base plate 1. Taking the example that the sidewall 301 of the pixel opening includes the first sidewall 3011 and the second sidewall 3012, the cathode 201 may cover the first sidewall 3011 of the pixel opening. Further, the cathode 201 may also cover the area of the pixel defining layer 3 located at the periphery of the pixel opening. The thickness of the cathode 201 may be 10nm to 16nm, for example, 10nm, 11nm, 12nm, 15nm, 16nm, etc., but the embodiment of the present disclosure is not particularly limited thereto.
As shown in fig. 3 and 4, the color film layer 4 may be disposed on a side of the cathode 201 away from the substrate base plate 1. The color film layer 4 may include a color block 401 and a black matrix 402 surrounding the color block 401. The orthographic projection of the pixel opening on the substrate 1 is located in the orthographic projection area of the color block 401 on the substrate 1, namely the orthographic projection of the color block 401 on the substrate 1 is larger than or equal to the orthographic projection of the pixel opening on the substrate 1, and the orthographic projection of the color block 401 on the substrate 1 covers the orthographic projection of the pixel opening on the substrate 1. If the pixel opening is filled with a preset medium and the preset medium does not extend out of the pixel opening, the orthographic projection of the preset medium filled in the pixel opening on the substrate 1 is the orthographic projection of the pixel opening on the substrate 1 according to the disclosure. Herein, the portion of the pixel defining layer 3 corresponding to the color resistance block 401 is referred to as a pixel defining portion in the present disclosure. The pixel defining layer 3 has irregularities corresponding to at least a partial region of the surface of the color resist block 401 covered by the cathode 201, that is, at least a partial region of the surface of the pixel defining portion covered by the cathode 201.
As shown in fig. 4, taking the orthographic projection of the color resist block 401 on the substrate 1 larger than the orthographic projection of the pixel opening on the substrate 1 as an example, the area of the pixel defining layer 3 located at the periphery of the pixel opening corresponding to the surface of the color resist block 401 may also be at least a partial area of the surface of the pixel defining part covered by the cathode 201, that is, the area of the pixel defining layer 3 located at the periphery of the pixel opening corresponding to the surface of the color resist block 401 is uneven, that is, the surface of the area of the pixel defining layer 3 located between the dashed line L3 and the dashed line L7 and the surface of the area of the pixel defining layer 3 located between the dashed line L6 and the dashed line L8 in fig. 4 are uneven. In another embodiment of the present disclosure, at least a partial region of the surface of the pixel defining portion covered by the cathode 201 may be the first sidewall 3011 of the pixel opening, that is, the first sidewall 3011 may be uneven. Further, the first side wall 3011 and the second side wall 3012 are both rugged, that is, all areas of the side wall 301 of the pixel opening are rugged.
As shown in fig. 6, the sidewall 301 of the pixel opening may be formed with a plurality of steps to make the sidewall 301 of the pixel opening rugged. The number of steps may be 2 or more and 5 or less, that is, the number of steps is 2, 3, 4, or 5. When the number of steps is less than 2 or greater than 5, the sidewall 301 of the pixel opening is difficult to form a diffuse reflection region, so that the reflectivity of the sidewall 301 of the pixel opening is difficult to reduce. In addition, the height of each step is greater than the thickness of the cathode 201, so that the cathode 201 covering the sidewall 301 of the pixel opening is also rugged. The steps can be formed by gray scale exposure, and the disclosure is not described in detail herein. In other embodiments of the present disclosure, the sidewalls 301 of the pixel opening may also be formed by a plasma bombardment process, as shown in FIG. 7.
As shown in fig. 3, the number of the pixel openings may be multiple, and the multiple pixel openings are distributed at intervals. The number of the light emitting units 2 may be multiple, and the light emitting units 2 are disposed in the pixel openings in a one-to-one correspondence. The plurality of light emitting units 2 may include a red light emitting unit, a green light emitting unit, and a blue light emitting unit. The number of the color resist blocks 401 may be plural. The plurality of color resist blocks 401 correspond to the plurality of light emitting cells 2 one to one. The plurality of color blocks 401 may include a red color block, a blue color block, and a green color block. The red color block corresponds to the red light-emitting unit, the blue color block corresponds to the blue light-emitting unit, and the green color block corresponds to the green light-emitting unit.
As shown in fig. 3, the display panel according to the embodiment of the present disclosure may further include a touch layer 6. The touch layer 6 can be disposed between the color film layer 4 and the cathode 201. The touch layer 6 may be FMLOC (Flexible multi-layer on cell). The touch layer 6 may include a first insulating layer 601, a first metal layer 602, a second insulating layer 603, and a second metal layer 604. The first insulating layer 601 may be provided on a side of the cathode 201 remote from the base substrate 1. The first metal layer 602 may be disposed on a side of the first insulating layer 601 away from the substrate base 1. The second insulating layer 603 may be provided on a side of the first metal layer 602 away from the substrate base plate 1. The second metal layer 604 may be provided on a side of the second insulating layer 603 remote from the substrate base plate 1. The color film layer 4 may be disposed on a side of the second metal layer 604 away from the substrate 1. The touch layer 6 may further include a third insulating layer 605. The third insulating layer 605 may be disposed between the color film layer 4 and the second metal layer 604. The first metal layer 602 may be a metal mesh electrode layer. The second metal layer 604 may be a bridge metal layer. The metal grid electrode layer can be divided into a Tx metal grid and an Rx metal grid according to the horizontal and vertical directions, the Rx metal grids are connected with each other, and the Tx metal grid is connected with the Rx metal grid through a bridging metal layer. The first insulating layer 601, the second insulating layer 603, and the third insulating layer 605 may be made of the same material, for example, silicon nitride, but the embodiment of the disclosure is not limited thereto.
As shown in fig. 3, the display panel of the embodiment of the present disclosure may further include an encapsulation layer 5. The encapsulation layer 5 may be disposed between the touch layer 6 and the cathode 201. Taking the touch layer 6 including the first insulating layer 601, the first metal layer 602, the second insulating layer 603, and the second metal layer 604 as an example, the encapsulation layer 5 may be disposed between the first insulating layer 601 and the cathode 201. In an embodiment of the present disclosure, the encapsulation layer 5 may include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer. The first inorganic packaging layer covers the light-emitting unit 2 and the pixel defining layer 3, the organic packaging layer is arranged on one side of the first inorganic packaging layer far away from the light-emitting unit 2, and the second inorganic packaging layer covers the first inorganic packaging layer and the organic packaging layer, wherein the organic packaging layer is covered between the first inorganic packaging layer and the second inorganic packaging layer. In other embodiments of the present disclosure, the encapsulation layer 5 may also be an indium encapsulation layer or other structures, and the present disclosure is not described in detail herein. In addition, the display panel of the embodiment of the present disclosure may further include a cover plate 8. The cover plate 8 may be disposed on a side of the color film layer 4 away from the substrate base plate 1. Wherein, a planarization layer 7 can be further disposed between the cover plate 8 and the color film layer 4. Wherein the planarization layer 7 is made of an insulating material.
The embodiment of the disclosure also provides a display device. The display device may include the display panel described in any of the above embodiments. The display device may be a mobile phone, a computer, a television, a camera, a wearable display, a navigator, a vehicle-mounted display, and the like, but the embodiment of the disclosure is not particularly limited thereto. Since the display device of the embodiment of the present disclosure is the same as the display panel of the embodiment of the display panel, the display device has the same beneficial effects, and the description thereof is omitted.
Although the present disclosure has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.
Claims (10)
1. A display panel, comprising:
a substrate base plate;
a pixel defining layer disposed on the substrate and including a pixel opening;
the light-emitting unit is arranged in the pixel opening and comprises an anode, a light-emitting layer and a cathode which are arranged in a stacked mode along the direction far away from the substrate base plate, and the cathode covers the pixel defining layer;
the color film layer is arranged on one side of the cathode, which is far away from the substrate base plate, and comprises a color block and a black matrix surrounding the color block, and the orthographic projection of the pixel opening on the substrate base plate is positioned in the orthographic projection area of the color block on the substrate base plate;
wherein at least a partial region of the pixel defining layer corresponding to a surface of the color resist block partially covered by the cathode is rugged.
2. The display panel according to claim 1, wherein the side wall of the pixel opening in the thickness direction of the substrate base includes a first side wall and a second side wall connected to each other, the first side wall is located on a side of the second side wall away from the substrate base, the cathode covers the first side wall, and the first side wall is uneven.
3. The display panel according to claim 2, wherein the second sidewall is uneven.
4. The display panel according to claim 3, wherein a sidewall of the pixel opening is formed with a plurality of steps.
5. The display panel according to claim 4, wherein the number of the steps is 5 or less and 2 or more.
6. The display panel according to claim 4, wherein a height of each of the steps is greater than a thickness of the cathode.
7. The display panel according to claim 6, wherein the pixel defining layer has a thickness of 1.5 μm to 3 μm, the cathode has a thickness of 10nm to 16nm, the anode has a thickness of 100nm to 200nm, and the light emitting layer has a thickness of 300nm to 400 nm.
8. The display panel according to claim 1, characterized in that the display panel further comprises:
and the touch layer is arranged between the color film layer and the cathode.
9. The display panel according to claim 8, characterized in that the display panel further comprises:
and the packaging layer is arranged between the touch layer and the cathode.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202021675072.3U CN212517208U (en) | 2020-08-12 | 2020-08-12 | Display panel and display device |
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| CN202021675072.3U CN212517208U (en) | 2020-08-12 | 2020-08-12 | Display panel and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113453A (en) * | 2021-03-25 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113471386A (en) * | 2021-06-30 | 2021-10-01 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN113725384A (en) * | 2021-09-01 | 2021-11-30 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| WO2023280012A1 (en) * | 2021-07-07 | 2023-01-12 | 京东方科技集团股份有限公司 | Display substrate and preparation method therefor, and display apparatus |
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2020
- 2020-08-12 CN CN202021675072.3U patent/CN212517208U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113453A (en) * | 2021-03-25 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113471386A (en) * | 2021-06-30 | 2021-10-01 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| WO2023280012A1 (en) * | 2021-07-07 | 2023-01-12 | 京东方科技集团股份有限公司 | Display substrate and preparation method therefor, and display apparatus |
| CN113725384A (en) * | 2021-09-01 | 2021-11-30 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113725384B (en) * | 2021-09-01 | 2024-02-06 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |