CN109065580B - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
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- CN109065580B CN109065580B CN201810856121.4A CN201810856121A CN109065580B CN 109065580 B CN109065580 B CN 109065580B CN 201810856121 A CN201810856121 A CN 201810856121A CN 109065580 B CN109065580 B CN 109065580B
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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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
Abstract
The invention provides a display panel, a preparation method thereof and a display device, relates to the technical field of display, and aims to improve the visual angle color cast phenomenon of the display panel and improve the display effect of the display panel. The display panel comprises a plurality of first color light emitting elements, each of which comprises an anode, a first color light emitting layer and a cathode which are arranged in a stacked manner; the light emitting side of the at least one first color light emitting layer further comprises a first color resistance; the first color light emitting element comprises a red light emitting element, the first color light emitting layer comprises a red light emitting layer, and the first color resistor comprises a red color resistor; the red color resists cover the corresponding red light emitting layers. The display panel is used for realizing picture display.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel, a manufacturing method of the display panel and a display device.
[ background of the invention ]
With the continuous development of display technology and the diversified demands of users on display devices, the flexible and foldable display panel is more and more widely used. However, when the display panel is viewed, the paths of the light emitted from the light emitting elements at different positions of the bending region during the process of emitting the light to human eyes are different, so that the color shift phenomenon occurs in the display region under a large viewing angle, and the display effect is affected.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel, a manufacturing method thereof, and a display device, which are used to improve the color shift of the viewing angle of the display panel and improve the display effect of the display panel.
In one aspect, embodiments of the present invention provide a display panel including a plurality of first color light emitting elements, each of the first color light emitting elements including an anode, a first color light emitting layer, and a cathode, which are stacked;
the light emitting side of at least one first color light emitting layer further comprises a first color resistance;
the first color light emitting element comprises a red light emitting element, the first color light emitting layer comprises a red light emitting layer, and the first color resistor comprises a red color resistor;
the red color resists cover the corresponding red light-emitting layers.
In another aspect, an embodiment of the present invention provides a method for manufacturing a display panel, where the method includes:
forming a plurality of first color light emitting elements on a base substrate, each of the first color light emitting elements including an anode, a first color light emitting layer, and a cathode in a stacked arrangement;
forming a first color resistance on the light emitting side of at least one first color light emitting layer;
the first color light emitting element comprises a red light emitting element, the first color light emitting layer comprises a red light emitting layer, and the first color resistor comprises a red color resistor;
the red color resists cover the corresponding red light-emitting layers.
In another aspect, an embodiment of the present invention provides a display device, which includes the display panel described above.
In the embodiment of the invention, the red color resistor is arranged on the light emergent side of the red luminous layer, so that when the display panel works, light emitted by the red luminous layer is emitted after passing through the red color resistor. After light emitted by the red light emitting layer passes through the red color resistor, the spectrum of the emitted red light can be changed, so that the chromaticity of the emitted red light is changed, and the phenomenon of large visual angle color cast of the display panel is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present 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 diagram illustrating a display panel in a curved state according to the prior art;
FIG. 2 is a schematic cross-sectional view along AA' of FIG. 1;
FIG. 3 is a schematic diagram illustrating a prior art method for analyzing the degree of color shift of a display panel including light emitting elements of different colors;
fig. 4 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;
fig. 5 is a schematic view illustrating a curvature of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating a display panel in an unbent state according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another display panel in an unbent state according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention;
fig. 9 is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of the invention;
fig. 10 is a schematic flowchart illustrating another method for manufacturing a display panel according to an embodiment of the invention;
fig. 11 is a schematic diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first and second may be used to describe the inorganic layers in the embodiments of the present invention, the inorganic layers should not be limited to these terms. These terms are only used to distinguish the inorganic layers from each other. For example, a first inorganic layer may also be referred to as a second inorganic layer, and similarly, a second inorganic layer may also be referred to as a first inorganic layer, without departing from the scope of embodiments of the present invention.
As shown in fig. 1 and 2, fig. 1 is a schematic view of a display panel in a bent state in the related art, and fig. 2 is a schematic cross-sectional view along AA 'of fig. 1, wherein the display panel includes a plurality of light emitting elements 11' of different colors, and each of the light emitting elements 11 'of the colors includes an anode 111', a light emitting layer 112 ', and a cathode 113' which are stacked. When the display panel displays, the light emitting layer 112 ' emits light by a voltage difference between the cathode 113 ' and the anode 111 '. However, when the display panel that can be bent as shown in fig. 1 is viewed, the display panel can be bent, and therefore, for the portion of the bending region 1 'in the display panel, the paths through which the light emitted from the light emitting elements located at different positions of the bending region 1' travels in the process of being emitted to the human eyes are different, and therefore, the display panel at a position with a large viewing angle has a color shift phenomenon, which affects the display effect. Specifically, the inventor of the present application has studied the color shift phenomenon of the display panel in the prior art, and as shown in fig. 3, fig. 3 is a schematic diagram illustrating the degree of the color shift of the viewing angle of the display panel including the light emitting elements of different colors in the prior art, and it can be seen from fig. 3 that the color shift phenomenon of the viewing angle of the red light is more serious as the viewing angle increases.
In view of this, an embodiment of the present invention provides a display panel, as shown in fig. 4, fig. 4 is a schematic cross-sectional view of the display panel provided by the embodiment of the present invention, wherein the display panel includes a plurality of first color light emitting elements 1 (only one first color light emitting element 1 is taken as an example in fig. 4), each first color light emitting element 1 includes an anode 11, a first color light emitting layer 12 and a cathode 13 which are stacked; the light exit side of the at least one first color light emitting layer 12 further comprises a first color resist 14. Specifically, as shown in fig. 4, the first color light emitting element 1 includes a red light emitting element 1R, the first color light emitting layer 12 includes a red light emitting layer 12R, and the first color resist 14 includes a red resist 14R; the red color resists 14R cover the corresponding red light-emitting layers 12R.
When the display panel is in operation, the red light-emitting layer 12R emits red light under the action of the voltage between the anode 11 and the cathode 13, and the red light emitted by the red light-emitting layer 12R is emitted through the red color resistor 14R. In the embodiment of the invention, the red color resistor 14R is arranged on the light emergent side of the red light emitting layer 12R, so that after light emitted by the red light emitting layer 12R passes through the red color resistor 14R, the spectrum of the emitted red light can be changed, the chromaticity of the emitted red light is changed, and the large-viewing-angle color cast phenomenon of the display panel is improved.
For example, as shown in fig. 5 and fig. 6, fig. 5 is a schematic view of a display panel provided by an embodiment of the present invention in a bent state, and fig. 6 is a schematic view of the display panel provided by the embodiment of the present invention in a non-bent state, the display panel includes a bending region 20 and a non-bending region 22, wherein the distribution density of the red color resists 14R in the bending region 20 is greater than the distribution density of the red color resists 14R in the non-bending region 22. Thus, when the eyes observe the bending region 20 of the display panel, even if the paths traveled by the red light emitted by the red light emitting elements at different positions of the bending region are different in the process of emitting the red light to the eyes, the red color resistors 14R with a higher distribution density are arranged in the bending region 20, so that the spectrum of the red light emitted by the red light emitting elements in the bending region 20 can be improved, the large-viewing-angle color cast phenomenon of the display panel in the bending region 20 can be improved, and the display effect of the display panel can be improved.
The distribution density of the red resists 14R in the bending regions 20 means the number of red light-emitting layers 12R covered with the red resists 14R per unit area of the bending regions 20. The distribution density of the red resists 14R in the non-bent region 22 refers to the number of red light-emitting layers 12R covered with the red resists 14R per unit area of the non-bent region 22.
Specifically, as shown in fig. 6, for 10 red light emitting layers 12R located in the bending region 20, 8 red light emitting layers 12R are covered with red color resists 14R, and the coverage density is 8; for the same number of red light emitting layers 12R located in the non-bending region 22, i.e. for 10 red light emitting layers 12R located in the non-bending region 22, only 4 red light emitting layers 12R are covered with the red color resists 14R, and the coverage density is 4. It should be understood that in fig. 6, only the red light emitting layer 12R is shown for simplicity of the picture, but the display panel further includes light emitting layers of other colors, such as a green light emitting layer and a blue light emitting layer.
For example, as shown in fig. 7, fig. 7 is a schematic view of another display panel in a non-bending state according to an embodiment of the present invention, wherein, in the bending region 20, the light-emitting side of each red light-emitting layer 12R includes a red color resistor 14R, so that the spectrum of red light emitted from each red light-emitting layer 12R located in the bending region 20 is adjusted, and further, the chromaticity of red light emitted from each red light-emitting layer 12R located in the bending region 20 is improved, and the viewing angle color shift phenomenon of the red light is improved. In the non-bending region 22, no red color resistance is provided on the light exit side of each red light emitting layer 12R.
Specifically, as shown in fig. 7, for 10 red light emitting layers 12R located in the bending region 20, each red light emitting layer 12R is covered with a red color resist 14R, and the coverage density is 10; for the same number of red light emitting layers 12R located in the non-bending region 22, 10 red light emitting layers 12R are not covered by the red color resists 14R, and the covering density is 0.
Alternatively, as shown in FIG. 4, the thickness d of the red color filter 14R may be in the range of 1.5 μm to 2.6. mu.m. In this thickness range, the chromaticity of red light emitted from the red light-emitting layer 12R can be made closer to the standard chromaticity value of red.
Illustratively, as shown in fig. 4, the display panel further includes a plurality of green light-emitting elements 2G and blue light-emitting elements 3B (only one green light-emitting element 2G and one blue light-emitting element 3B are exemplified in fig. 4), each green light-emitting element 2G including an anode 21, a green light-emitting layer 22G, and a cathode 23 arranged in a stacked manner, and each blue light-emitting element 3B including an anode 31, a blue light-emitting layer 32B, and an anode 33 arranged in a stacked manner; wherein, the light-emitting side of the green light-emitting layer 22G has no corresponding color resistance; the light-emitting side of the blue light-emitting layer 32B has no corresponding color resistance set. That is, in the display panel composed of the light emitting layers of three colors of red, green, and blue, the embodiment of the present invention adjusts the spectrum of red light, which is likely to have a large viewing angle color shift, by disposing the red color resistor 14R only on the light emitting side of the red light emitting layer 12R, so that the color shift degree of red light can be consistent with the color shift degree of green light and blue light, and the display effect of the display panel composed of the light emitting layers of three colors of red, green, and blue can be improved.
Illustratively, as shown in fig. 4, the display panel further includes an encapsulation layer 4, and the encapsulation layer 4 is located on the light-emitting side of the red light-emitting layer 12R. Specifically, the encapsulation layer 4 includes at least a first inorganic layer 41, a first organic layer 42, and a second inorganic layer 43, which are stacked. The red resist 14R is attached to the second inorganic layer 43 on the side away from the first organic layer 42. According to the embodiment of the invention, the light-emitting elements with different colors are packaged by selecting the mode of laminating the organic layer and the inorganic layer, so that external water and oxygen can be well prevented from entering, and the packaging layer has good flexibility. On this basis, in the embodiment of the invention, the red color resistor 14R is attached to the side of the second inorganic layer 43 away from the first organic layer 42, that is, in the preparation of the display panel, after the red light emitting layer 12R, the green light emitting layer 22G and the blue light emitting layer 32B are encapsulated by the encapsulation layer 4, the red color resistor 14R is manufactured, and the red color resistor 14R is attached to the side of the second inorganic layer 43 away from the first organic layer 42, so that the influence on the encapsulation effect of the encapsulation layer 4 can be avoided, and the service lives of the red light emitting layer 12R, the green light emitting layer 22G and the blue light emitting layer 32B can be ensured.
For example, the first inorganic layer 41 and the second inorganic layer 43 may be silicon oxide or silicon nitride, and the first organic layer 42 may be an acrylate compound.
For example, as shown in fig. 8, fig. 8 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention, where the display panel further includes a touch layer 5, and the touch layer 5 is located on a side of the encapsulation layer 4 away from the red light emitting layer 12R. Through the setting of the touch layer 5, the display panel can realize the touch function, and the use requirements of users are enriched.
Optionally, as shown in fig. 8, the red color resistor 14R is attached to a side of the touch layer 5 away from the package layer 4.
Exemplarily, as shown in fig. 4 and 8, the display panel includes a flexible transparent substrate 6 to ensure that the display panel is a flexible bendable display panel, and the bending curvature radius of the display panel is 0.3mm to 1.0mm, so that a user can freely implement a bending operation on the display panel. It should be understood that fig. 5 is only an example of a bent state, and the embodiment of the present invention is not limited thereto.
Fig. 9 is a schematic flow chart of a manufacturing method of a display panel according to an embodiment of the present invention, shown in fig. 4, 8 and 9; the manufacturing method comprises the following steps:
s1: forming a plurality of first color light emitting elements 1 on a base substrate 6, each first color light emitting element 1 including an anode 11, a first color light emitting layer 12, and a cathode 13 which are arranged in a stacked manner;
s2: forming a first color resist 14 on the light emitting side of the at least one first color light emitting layer 12;
wherein the first color light emitting element 1 comprises a red light emitting element 1R, the first color light emitting layer 12 comprises a red light emitting layer 12R, and the first color resistor 14 comprises a red color resistor 14R; the red color resists 14R cover the corresponding red light-emitting layers 12R.
When the display panel is prepared, the red color resistor 14R is arranged on the light emitting side of the red light emitting layer 12R, so that when the display panel works, light emitted by the red light emitting layer 12R passes through the red color resistor 14R and then is emitted, and after the light emitted by the red light emitting layer 12R passes through the red color resistor 14R, the spectrum of the emitted red light can be changed, so that the chromaticity of the emitted red light is changed, and the large-viewing-angle color cast phenomenon of the prepared display panel is improved.
Exemplarily, referring to fig. 4 and fig. 10, fig. 10 is another schematic flow chart of a manufacturing method of a display panel according to an embodiment of the present invention, where in step S2, the forming a first color resist 14 on a light emitting side of at least one first color light emitting layer 12 includes:
s21: forming a package layer 4 on the light emitting side of the red light emitting element 1R;
s22: a red color resist 14R is formed on the side of the encapsulating layer 4 remote from the red light-emitting layer 12R.
For example, the step S21 is to form the encapsulation layer 4 on the light emitting side of the red light emitting element 1R, and includes:
a first inorganic layer 41, a first organic layer 42, and a second inorganic layer 43 are formed in this order on the light-emitting side of the red light-emitting element 1R;
step S22, forming a red color filter 14R on the side of the encapsulation layer 4 away from the red light-emitting layer 12R, includes:
a red color resist 14R is formed on the side of the second inorganic layer 43 remote from the first organic layer 42.
For example, the first inorganic layer 41 and the second inorganic layer 43 may be made of silicon nitride or silicon oxide, and the first inorganic layer 41 and the second inorganic layer 43 may be formed by chemical vapor deposition. The first organic layer 42 may be made by ink-jet printing using an acrylate compound.
The detailed structure and function of the above layers have been described in detail in the above embodiments, and are not described herein again.
Optionally, the step S1 of forming a plurality of first color light emitting elements 1 on the base substrate 6 includes:
forming a plurality of first color light emitting elements 1 on a substrate base plate 6 through a first mask plate;
the red color resist 14R is formed on the side of the second inorganic layer 43 away from the first organic layer 42, and includes:
the red resists 14R are vapor-deposited on the second inorganic layer 43 on the side away from the first organic layer 42 by a second mask. The pattern of the first mask is the same as the pattern of the second mask, so that the red color resists 14R can cover the red light-emitting layers 12R.
Alternatively, the step S22 of forming the red color resist 14R on the side of the encapsulating layer 4 away from the red light-emitting layer 12R includes:
providing a carrier film layer;
forming a red color resistance on one side of the carrier film layer through a third mask plate to obtain a red color resistance film layer;
and attaching the red color resistance film layer to one side of the substrate base plate 6 on which the packaging layer 4 is formed, wherein the pattern of the first mask plate is the same as that of the third mask plate, so that the red color resistance 14R covers the corresponding red light-emitting layer 12R.
Illustratively, the carrier film layer includes a touch layer.
Illustratively, the substrate 6 is a flexible transparent substrate, and the bending curvature radius of the flexible transparent substrate is 0.3mm to 1.0mm, so that a user can freely perform a bending operation on a display panel made of the flexible transparent substrate.
As shown in fig. 11, fig. 11 is a schematic view of a display device provided in an embodiment of the present invention, where the display device includes the display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 11 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
In the display device provided by the embodiment of the invention, when the display device works, light emitted by the red light emitting layer 12R in the display panel of the display device is emitted after passing through the red color resistor 14R. After light emitted by the red light emitting layer 12R passes through the red color resistor 14R, the spectrum of the emitted red light can be changed, so that the chromaticity of the emitted red light is changed, and the phenomenon of large viewing angle color cast in the display device is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A display panel is characterized by comprising a plurality of first color light emitting elements, each of which comprises an anode, a first color light emitting layer and a cathode which are arranged in a stacked manner;
the light emitting side of at least one first color light emitting layer further comprises a first color resistance;
the first color light emitting element comprises a red light emitting element, the first color light emitting layer comprises a red light emitting layer, and the first color resistor comprises a red color resistor;
the red color resistors cover the corresponding red light emitting layers;
the display panel comprises a bending area and a non-bending area, and the distribution density of the red color resistance in the bending area is greater than that of the red color resistance in the non-bending area;
the display panel further includes a plurality of green light emitting elements each including an anode, a green light emitting layer, and a cathode arranged in a stack, and blue light emitting elements each including an anode, a blue light emitting layer, and an anode arranged in a stack;
the light-emitting side of the green light-emitting layer is not provided with corresponding color resistance;
the light-emitting side of the blue light-emitting layer is not provided with corresponding color resistance;
the display panel further comprises a packaging layer and a touch layer;
the packaging layer is positioned on the light emitting side of the red light emitting layer; the touch layer is positioned on one side of the packaging layer, which is far away from the red light-emitting layer; the red color resistor is attached to one side, far away from the packaging layer, of the touch layer.
2. The display panel according to claim 1, wherein a light emitting side of each of the red light emitting layers includes the red color resists in the bending regions.
3. The display panel according to claim 1, wherein in the non-bending region, the light-emitting side of each of the red light-emitting layers is free from the red color resists.
4. The display panel of claim 1, wherein the thickness of the red color resistance is in the range of 1.5 μ ι η to 2.6 μ ι η.
5. The display panel according to claim 1, wherein the encapsulation layer comprises at least a first inorganic layer, a first organic layer, and a second inorganic layer stacked.
6. The display panel according to any one of claims 1 to 5, wherein the display panel comprises a flexible transparent substrate, the display panel is a flexible bendable display panel, and the bending curvature radius of the display panel is 0.3mm to 1.0 mm.
7. A method for manufacturing a display panel is characterized by comprising the following steps:
forming a plurality of first color light emitting elements on a base substrate, each of the first color light emitting elements including an anode, a first color light emitting layer, and a cathode in a stacked arrangement;
forming a first color resistance on the light emitting side of at least one first color light emitting layer;
the first color light emitting element comprises a red light emitting element, the first color light emitting layer comprises a red light emitting layer, and the first color resistor comprises a red color resistor;
the red color resistors cover the corresponding red light emitting layers;
the display panel comprises a bending area and a non-bending area, and the distribution density of the red color resistance in the bending area is greater than that of the red color resistance in the non-bending area;
the display panel further includes a plurality of green light emitting elements each including an anode, a green light emitting layer, and a cathode arranged in a stack, and blue light emitting elements each including an anode, a blue light emitting layer, and an anode arranged in a stack;
the light-emitting side of the green light-emitting layer is not provided with corresponding color resistance;
the light-emitting side of the blue light-emitting layer is not provided with corresponding color resistance;
forming the first color resistor on the light emitting side of at least one first color light emitting layer, comprising:
forming a packaging layer on the light emitting side of the red light emitting element;
providing a carrier film layer;
forming a red color resistor on one side of the carrier film layer to obtain a red color resistor film layer;
bonding the red color resistance film layer to one side of the substrate base plate on which the packaging layer is formed, so that the red color resistance covers the corresponding red light-emitting layer;
the carrier film layer includes a touch layer.
8. The method of claim 7, wherein forming an encapsulation layer on a light-emitting side of the red light-emitting device comprises:
and a first inorganic layer, a first organic layer and a second inorganic layer are sequentially formed on the light emergent side of the red light-emitting element.
9. The method of claim 8, wherein forming a plurality of first color light emitting elements on a base substrate comprises:
forming a plurality of first color light emitting elements on the substrate through a first mask;
forming the red color resistor on the side of the packaging layer far away from the red light-emitting layer, including:
forming a red color resistance on one side of the carrier film layer through a third mask plate to obtain a red color resistance film layer;
the patterns of the first mask plate are the same as the patterns of the third mask plate.
10. The method according to any one of claims 7 to 9, wherein the base substrate is a flexible transparent substrate, and the bending radius of curvature of the flexible transparent substrate is 0.3mm to 1.0 mm.
11. A display device characterized in that it comprises a display panel according to any one of claims 1 to 6.
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| CN111584560B (en) * | 2020-05-08 | 2022-09-09 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel, display screen and electronic device |
| CN113745295A (en) * | 2021-08-30 | 2021-12-03 | 武汉华星光电半导体显示技术有限公司 | Display panel |
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| CN104460137B (en) * | 2014-12-29 | 2018-04-17 | 厦门天马微电子有限公司 | Display panel and display device |
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