CN109659340B - Display panel and preparation method thereof - Google Patents
Display panel and preparation method thereof Download PDFInfo
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- CN109659340B CN109659340B CN201811520015.5A CN201811520015A CN109659340B CN 109659340 B CN109659340 B CN 109659340B CN 201811520015 A CN201811520015 A CN 201811520015A CN 109659340 B CN109659340 B CN 109659340B
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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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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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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- 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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Abstract
The application discloses display panel and preparation method of display panel, display panel includes: a substrate; a plurality of light emitting units disposed on the substrate; a quarter wave plate disposed on the plurality of substrates and covering the plurality of light emitting cells; a linear polarizing layer disposed on the quarter-wave plate; the linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between every two adjacent light-emitting units. By means of the mode, light loss of the display panel can be reduced, and the light emitting brightness of the display panel is greatly improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a preparation method of the display panel.
Background
Organic Light Emitting display panels (OLEDs) have the advantages of low power consumption, ultra-Light and thin profile, wider viewing angle, high contrast, and short response time, and are considered as the most promising display devices in the industry.
In the OLED display panel, a circular polarizer is one of important components, and reflection of external light can be blocked by the circular polarizer, so that reflection can be reduced, and contrast of the display panel can be improved. However, the conventional circular polarizer usually includes a linearly polarized light portion, and the linearly polarized light portion only allows light rays having the same polarization direction as the linearly polarized light portion, so that the transmittance is low, and a large part of the light rays emitted by the display panel is lost when passing through the linearly polarized light portion, thereby greatly reducing the luminance of the display panel.
Disclosure of Invention
The embodiment of the application provides a display panel and a preparation method of the display panel, which can reduce the light loss emitted by the display panel and greatly improve the luminous brightness of the display panel.
In a first aspect, the present application provides a display panel comprising
A substrate;
a plurality of light emitting units disposed on the substrate;
a quarter wave plate continuously disposed on the plurality of substrates and covering the plurality of light emitting cells;
a linear polarizing layer disposed on the quarter-wave plate; the linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between the adjacent light-emitting units; and
the transparent optical adhesive layer is arranged on the linear polarization layer and covers the linear polarization blocks.
In the display panel provided by the application, a plurality of light emitting units are arranged at intervals; wherein, each linear polarization block is correspondingly arranged at the interval of the light-emitting unit.
In the display panel provided by the present application, the display panel further includes a first alignment layer; the first alignment layer is arranged on the quarter-wave plate, and the linear polarizers are arranged on the first alignment layer at intervals.
In the display panel provided by the application, the material of the linear polarization block is nematic liquid crystal.
In the display panel provided by the present application, the quarter-wave plate includes a second alignment layer and a liquid crystal layer; the second alignment layer is arranged on the substrate, covers the plurality of light emitting units, and is arranged on the second alignment layer.
In the display panel provided by the application, the display panel further comprises an encapsulation layer, and the encapsulation layer is arranged between the light emitting unit and the quarter-wave plate.
In the display panel provided by the application, the display panel further comprises an encapsulation layer, the encapsulation layer is arranged on the linear polarization layer, and the encapsulation layer covers the linear polarization blocks.
In the display panel provided by the present application, the display panel further includes an adhesive layer disposed between the light emitting unit and the quarter-wave plate.
In a second aspect, the present application provides a method for manufacturing a display panel, including:
providing a light-emitting substrate, wherein the light-emitting substrate comprises a substrate and a light-emitting unit arranged on the substrate;
forming a quarter wave plate on the light emitting substrate, the quarter wave plate continuously covering the plurality of light emitting cells;
forming a linear polarization layer with patterning on the quarter-wave plate, wherein the linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between adjacent light-emitting units;
and forming a layer of transparent optical adhesive layer on the linear polarization layer, wherein the transparent optical adhesive layer covers the linear polarization blocks.
In the manufacturing method of the present application, the step of forming the patterned linear polarizing layer on the quarter-wave plate includes:
placing a mask on the quarter-wave plate, wherein the mask comprises a shielding area and a coating area;
coating liquid crystal on the mask plate;
and curing the liquid crystal, and removing the mask plate to form a patterned linear polarization layer on the quarter-wave plate.
In the manufacturing method of the present application, the step of forming the patterned linear polarizing layer on the quarter-wave plate includes:
injecting liquid crystal into the mold;
carrying out illumination treatment on the die to obtain a plurality of linearly polarized light blocks;
attaching the plurality of polarizing blocks to the quarter-wave plate to form a patterned linear polarizing layer on the quarter-wave plate.
The application discloses display panel and preparation method of display panel, display panel includes: a substrate; a plurality of light emitting units disposed on the substrate; a quarter wave plate disposed on the plurality of substrates and covering the plurality of light emitting cells; a linear polarizing layer disposed on the quarter-wave plate; the linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between every two adjacent light-emitting units. By means of the mode, light loss of the display panel can be reduced, and the light emitting brightness of the display panel is greatly improved.
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 structural diagram of a display panel according to a first embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a display panel according to a second embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a third embodiment of a display panel provided in the present application;
fig. 4 is a schematic structural diagram of a fourth embodiment of a display panel provided in the present application;
fig. 5 is a schematic structural diagram of a fifth embodiment of a display panel provided in the present application;
fig. 6 is a schematic structural diagram of a display panel according to a sixth embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a seventh embodiment of a display panel provided in the present application;
fig. 8 is a schematic flow chart of a manufacturing method of a display panel provided in the present application.
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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present disclosure. The present application provides a display panel 1, which includes a substrate 10, a light emitting unit 20, a quarter-wave plate 30, and a linear polarization layer 40.
The substrate 10 may be a glass substrate or a substrate made of other materials. The light emitting units 20 are disposed on the substrate 10, and the light emitting units 20 may be arranged in an array for displaying images. Wherein, the drain of the thin film transistor array can be electrically connected with the anode layer 201 of the light emitting pixel unit 20 to realize the connection of the thin film transistor and the light emitting unit 20. Each light emitting unit 20 corresponds to one anode layer 201 and one organic light emitting layer 202, all the light emitting units 20 may share one cathode layer 203, one hole injection layer 204, one hole transport layer 205 and one electron transport layer 206, that is, the cathode layers 203 of all the light emitting pixel units 20 are connected to form a whole cathode layer 203, the hole injection layers 204 of all the light emitting units 20 are connected to form a whole hole injection layer 204, the hole transport layers 205 of all the light emitting units 20 are connected to form a whole hole transport layer 205, and the electron transport layers 206 of all the light emitting units 20 are connected to form a whole electron transport layer 206. Of course, the cathode layer of each light emitting unit 20 may be present alone, the hole injection layer of each light emitting pixel unit 20 may be present alone, and the like.
The quarter-wave plate 30 is continuously disposed on the substrate 10 and covers the plurality of light emitting cells 20, and the linear polarizing layer 40 is disposed on the quarter-wave plate 30. The linearly polarizing layer 40 may include a plurality of linearly polarizing blocks 401, and each linearly polarizing block 401 is correspondingly disposed between adjacent light emitting units 20. The quarter-wave plate 30 and the plurality of linear polarizing blocks 401 together constitute a circular polarizer structure.
In one embodiment, please continue to refer to FIG. 1. The plurality of light emitting cells 20 are arranged at intervals. Wherein each line polarization block 401 is correspondingly disposed at the interval of the light emitting unit 20. It should be noted that, the arrangement of each linear polarization block 401 at the interval of the light emitting unit 20 means: the orthographic projection of each line polarizing block 401 on the substrate 10 is located between the orthographic projections of the adjacent light emitting units 20 on the substrate, as shown in fig. 1.
For example, when the display panel 1 operates, the linearly polarized light emitted from the light emitting unit 20 perpendicular to the light emitting unit 20 passes through the quarter-wave plate 30 and is then converted into circularly polarized light. Therefore, the light emission luminance of the display panel 1 is improved. In addition, the plurality of linear polarization blocks 401 are disposed at the intervals corresponding to the adjacent two light emitting units 20, and the superposition of the plurality of linear polarization blocks 401 and the quarter-wave plate 30 can play a role of a circular polarizer, so that the reflection of external light can be blocked, the dark state reflectivity of the display panel 1 can be reduced, and the contrast of the display panel 1 can be improved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a display panel according to a second embodiment of the present disclosure. The present application provides a display panel 1. The display panel 1 of fig. 2 differs from the display panel 1 of fig. 1 in that: the display panel 1 further comprises a first alignment layer 402.
The first alignment layer 402 is disposed on the quarter-wave plate 30, and a plurality of linear polarization blocks 401 are disposed on the first alignment layer 402 at intervals.
In one embodiment, the material of the linear polarizer 401 is nematic liquid crystal. The material of the first alignment layer 402 may be a Polyamide material (PA). The first alignment layer 402 is used to align the linear polarizer 401 such that the liquid crystals in the linear polarizer 401 are aligned in a predetermined direction. The first alignment layer 402 and the plurality of linear polarizing blocks 401 together form the linear polarizing layer 40, and the linear polarizing layer 40 can perform an optical modulation function.
In addition, the quarter-wave plate 30 may also be a structure similar to the linearly polarizing layer 40. Referring to fig. 3, fig. 3 is a schematic structural diagram of a display panel according to a third embodiment of the present disclosure. The present application provides a display panel 1. The display panel 1 of fig. 3 differs from the display panel 1 of fig. 1 in that: the quarter-wave plate 30 includes a second alignment layer 301 and a liquid crystal layer 302. The second alignment layer 301 is disposed on the substrate 10, the second alignment layer 301 covers the plurality of light emitting cells 20, and the liquid crystal layer 302 is disposed on the second alignment layer 301.
It should be noted that, since the quarter-wave plate 30 in fig. 3 adopts a structure similar to the linear polarizing layer 40 in fig. 2. Thus, there are two factors that determine whether it is the linear polarizing layer 40 or the quarter-wave plate layer 30: (1) the proportion of doped liquid crystal; (2) and (5) alignment process. The proportion of doped liquid crystal and the alignment process are specifically determined according to actual conditions.
In addition, it should be noted that the conventional polarizer has a multilayer structure, and the multilayer structure at least includes a protective film, a release film, a pressure sensitive adhesive, polyvinyl alcohol, and two protective films of cellulose triacetate. Compared to the prior art, the circular polarizer of the present application may have a 4-layer structure, i.e., a plurality of linear polarizer blocks 401, a first alignment layer 402, a second alignment layer 301, and a liquid crystal layer 302. Therefore, the circular polarizer can not only block the reflection of external light, but also be beneficial to reducing the dark state reflectivity of the display panel 1 and improving the contrast of the display panel 1. Also, it is also advantageous to reduce the thickness of the display panel 1.
In one embodiment, the display panel 1 may further include an encapsulation layer 50. Referring to fig. 4, fig. 4 is a schematic structural diagram of a fourth embodiment of a display panel provided in the present application. The present application also provides a display panel 1. The display panel 1 of fig. 4 differs from the display panel 1 of fig. 1 in that: the display panel 1 further comprises an encapsulation layer 50. Wherein the encapsulation layer 50 is disposed on the linear polarizer layer 40, and the encapsulation layer 50 covers the plurality of linear polarizers 401.
By providing the encapsulating layer 50, the contrast of the display panel 1 is improved, and the linear polarizing block 401 in the linear polarizing layer 40 is prevented from being damaged.
In addition, in another embodiment, the encapsulation layer 50 may be disposed at another position. Referring to fig. 5, fig. 5 is a schematic structural diagram of a display panel according to a fifth embodiment of the present disclosure. The present application also provides a display panel 1. The display panel 1 of fig. 5 differs from the display panel 1 of fig. 4 in that: the encapsulation layer 50 is disposed between the light emitting unit 20 and the quarter wave plate 30.
Disposing the encapsulation layer 50 between the light emitting unit 20 and the quarter wave plate 30 may protect the film layer under the quarter wave plate 30, such as the cathode layer 203. And, convenience is provided for coupling between the quarter-wave plate 30 and the display panel 1. Meanwhile, the quarter-wave plate 30 is disposed on the packaging layer 50, and when the quarter-wave plate 30 is attached unevenly, the light emitting elements of the display panel 1 are not damaged.
In addition, a transparent optical glue layer 60 may be further disposed on the linear polarizing layer 40, as shown in fig. 6. In one aspect, the transparent optical glue layer 60 may protect the linear polarizing layer 40. On the other hand, the transparent optical adhesive layer 60 can be adhered to a cover plate or other film layers.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a display panel according to a seventh embodiment of the present disclosure. The present application also provides a display panel 1. The display panel 1 of fig. 7 differs from the display panel 1 of fig. 1 in that: the display panel 1 further comprises an adhesive layer 70. Wherein the adhesive layer 70 is disposed between the light emitting unit 20 and the quarter wave plate 30. The material of the adhesive layer 70 may be a pressure sensitive adhesive for adhering the quarter wave plate 30 to the light emitting unit 20.
The light polarizing block 401 is disposed between the adjacent light emitting units 20, and when the display panel 1 emits light, the light emitted vertically by the light emitting units 20 is emitted after passing through the quarter-wave plate 30, and does not pass through the light polarizing block 401. Therefore, the light loss emitted by the display panel 1 is reduced, and the light emitting brightness of the display panel 1 is greatly improved.
Referring to fig. 8, fig. 8 is a schematic flow chart of a manufacturing method of a display panel provided in the present application. The application provides a preparation method of a display panel, which comprises the following steps:
110. a light emitting substrate is provided.
The light-emitting substrate comprises a substrate and a light-emitting unit arranged on the substrate. The substrate 10 may be a glass substrate or a substrate made of other materials. The light emitting units 20 are disposed on the substrate 10, and the light emitting units 20 may be arranged in an array for displaying images. Wherein, the drain of the thin film transistor array can be electrically connected with the anode layer 201 of the light emitting pixel unit 20 to realize the connection of the thin film transistor and the light emitting unit 20. Each light emitting unit 20 corresponds to one anode layer 201 and one organic light emitting layer 202, all the light emitting units 20 may share one cathode layer 203, one hole injection layer 204, one hole transport layer 205 and one electron transport layer 206, that is, the cathode layers 203 of all the light emitting pixel units 20 are connected to form a whole cathode layer 203, the hole injection layers 204 of all the light emitting units 20 are connected to form a whole hole injection layer 204, the hole transport layers 205 of all the light emitting units 20 are connected to form a whole hole transport layer 205, and the electron transport layers 206 of all the light emitting units 20 are connected to form a whole electron transport layer 206. Of course, the cathode layer of each light emitting unit 20 may be present alone, the hole injection layer of each light emitting pixel unit 20 may be present alone, and the like. As shown in fig. 1-7.
120. A quarter-wave plate is formed on the light emitting substrate.
For example, a quarter-wave plate made in advance may be attached to the light emitting substrate. Alternatively, an alignment layer is coated on the light emitting substrate. Then, a layer of liquid crystal is coated on the alignment layer to form the structure of the quarter-wave plate 30 in fig. 3, 4, 5, 6 or 7. For details, please refer to the foregoing embodiments, which are not described herein.
130. A patterned linear polarizing layer is formed on the quarter-wave plate.
The linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between the adjacent light-emitting units.
In one embodiment, the step of forming the patterned linear polarizing layer on the quarter-wave plate may include:
a mask is placed over the quarter wave plate.
And coating liquid crystal on the mask plate.
And curing the liquid crystal, and removing the mask plate to form a linear polarization layer with patterns on the quarter-wave plate.
In this embodiment, the mask includes a mask region and a coating region. First, a mask is placed on the quarter wave plate. Then, a layer of liquid crystal is coated on the quarter-wave plate. Because the mask plate comprises a shielding area and a coating area. Therefore, the position of the shielding region corresponding to the quarter-wave plate does not have the existence of the liquid crystal. Subsequently, the liquid crystal may be cured by light irradiation. The liquid crystal forms a plurality of liquid crystal blocks according to the shape of the coating region. And finally, removing the mask plate. At this time, the quarter-wave plate has formed thereon a linear polarizing layer having a pattern. For details, please refer to the foregoing embodiments, which are not described herein.
In another embodiment, the step of forming the patterned linear polarizing layer on the quarter-wave plate may include:
injecting liquid crystal into the mold;
carrying out illumination treatment on the die to obtain a plurality of linearly polarized light blocks;
and attaching a plurality of polarizing blocks onto the quarter-wave plate to form a linear polarizing layer with patterns on the quarter-wave plate.
First, liquid crystal is injected into a mold made in advance. The mold is provided with a plurality of grooves. The size of the line polarizing block is determined according to the size of the groove. Then, the mold is subjected to light irradiation treatment so that the liquid crystal is cured in the mold, thereby obtaining a plurality of linearly polarized blocks. Finally, the plurality of linear polarization blocks are attached to the quarter-wave plate, so that the patterned linear polarization layer is formed on the quarter-wave plate. For details, please refer to the foregoing embodiments, which are not described herein.
The application discloses display panel and preparation method of display panel, display panel includes: a substrate; a plurality of light emitting units disposed on the substrate; a quarter wave plate disposed on the plurality of substrates and covering the plurality of light emitting cells; a linear polarizing layer disposed on the quarter-wave plate; the linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between every two adjacent light-emitting units. By means of the mode, light loss of the display panel can be reduced, and the light emitting brightness of the display panel is greatly improved.
The display panel and the method for manufacturing the display panel provided by the embodiment of the present application are described in detail above, and the principle and the embodiment of the present application are explained in the present application by applying specific examples, and the description of the above embodiments is only used to help understanding 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 (11)
1. A display panel, comprising:
a substrate;
a plurality of light emitting units disposed on the substrate;
a quarter wave plate continuously disposed on the substrate and covering the plurality of light emitting cells;
the linear polarization layer is arranged on the quarter-wave plate and comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between the adjacent light-emitting units; and
the transparent optical adhesive layer is arranged on the linear polarization layer and covers the linear polarization blocks.
2. The display panel according to claim 1, wherein a plurality of the light emitting units are arranged at intervals; wherein, each linear polarization block is correspondingly arranged at the interval of the light-emitting unit.
3. The display panel of claim 2, wherein the linear polarizing layer further comprises a first alignment layer; the first alignment layer is arranged on the quarter-wave plate, and the linear polarizers are arranged on the first alignment layer at intervals.
4. The display panel according to claim 3, wherein the material of the linear polarizer block is nematic liquid crystal.
5. The display panel of claim 2, wherein the quarter-wave plate comprises a second alignment layer and a liquid crystal layer; the second alignment layer is arranged on the substrate, covers the plurality of light emitting units, and is arranged on the second alignment layer.
6. The display panel of claim 1, further comprising an encapsulation layer disposed between the light emitting unit and the quarter wave plate.
7. The display panel of claim 1, further comprising an encapsulation layer disposed on the linear polarizing layer, wherein the encapsulation layer covers the plurality of linear polarizing blocks.
8. The display panel according to claim 1, further comprising an adhesive layer disposed between the light emitting unit and the quarter-wave plate.
9. A method for manufacturing a display panel, comprising:
providing a light-emitting substrate, wherein the light-emitting substrate comprises a substrate and a light-emitting unit arranged on the substrate;
forming a quarter wave plate on the light emitting substrate, the quarter wave plate continuously covering the plurality of light emitting cells;
forming a linear polarization layer with patterning on the quarter-wave plate, wherein the linear polarization layer comprises a plurality of linear polarization blocks, and each linear polarization block is correspondingly arranged between adjacent light-emitting units;
and forming a layer of transparent optical adhesive layer on the linear polarization layer, wherein the transparent optical adhesive layer covers the linear polarization blocks.
10. The method of claim 9, wherein the step of forming the patterned linearly polarizing layer on the quarter-wave plate comprises:
placing a mask on the quarter-wave plate, wherein the mask comprises a shielding area and a coating area;
coating liquid crystal on the mask plate;
and curing the liquid crystal, and removing the mask plate to form a patterned linear polarization layer on the quarter-wave plate.
11. The method of claim 9, wherein the step of forming the patterned linearly polarizing layer on the quarter-wave plate comprises:
injecting liquid crystal into the mold;
carrying out illumination treatment on the die to obtain a plurality of linearly polarized light blocks;
attaching the plurality of polarizing blocks to the quarter-wave plate to form a patterned linear polarizing layer on the quarter-wave plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520015.5A CN109659340B (en) | 2018-12-12 | 2018-12-12 | Display panel and preparation method thereof |
| PCT/CN2019/077788 WO2020118930A1 (en) | 2018-12-12 | 2019-03-12 | Display panel and display panel manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520015.5A CN109659340B (en) | 2018-12-12 | 2018-12-12 | Display panel and preparation method thereof |
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| CN109659340A CN109659340A (en) | 2019-04-19 |
| CN109659340B true CN109659340B (en) | 2021-01-01 |
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| CN201811520015.5A Active CN109659340B (en) | 2018-12-12 | 2018-12-12 | Display panel and preparation method thereof |
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| WO (1) | WO2020118930A1 (en) |
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| CN111048575A (en) * | 2020-01-03 | 2020-04-21 | 武汉华星光电半导体显示技术有限公司 | Organic light emitting display panel and method of manufacturing the same |
| CN111192907A (en) * | 2020-01-08 | 2020-05-22 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and display device |
| CN117501852A (en) * | 2022-04-20 | 2024-02-02 | 京东方科技集团股份有限公司 | Display substrate and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637975A (en) * | 2013-11-12 | 2015-05-20 | 宸鸿光电科技股份有限公司 | Light-emitting display device |
| CN107316948A (en) * | 2017-06-29 | 2017-11-03 | 上海天马有机发光显示技术有限公司 | A kind of display panel, its preparation method and display device |
| CN108334241A (en) * | 2018-03-21 | 2018-07-27 | 武汉华星光电半导体显示技术有限公司 | Touch-control structure of polarized light and flexible display apparatus |
| CN108873447A (en) * | 2018-06-14 | 2018-11-23 | 业成科技（成都）有限公司 | Touch control display apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4184189B2 (en) * | 2003-08-13 | 2008-11-19 | 株式会社 日立ディスプレイズ | Light-emitting display device |
| CN103811532B (en) * | 2014-01-28 | 2016-07-06 | 京东方科技集团股份有限公司 | A kind of display device and preparation method thereof |
| CN104914615A (en) * | 2015-06-29 | 2015-09-16 | 京东方科技集团股份有限公司 | Display device and manufacture method thereof |
-
2018
- 2018-12-12 CN CN201811520015.5A patent/CN109659340B/en active Active
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- 2019-03-12 WO PCT/CN2019/077788 patent/WO2020118930A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637975A (en) * | 2013-11-12 | 2015-05-20 | 宸鸿光电科技股份有限公司 | Light-emitting display device |
| CN107316948A (en) * | 2017-06-29 | 2017-11-03 | 上海天马有机发光显示技术有限公司 | A kind of display panel, its preparation method and display device |
| CN108334241A (en) * | 2018-03-21 | 2018-07-27 | 武汉华星光电半导体显示技术有限公司 | Touch-control structure of polarized light and flexible display apparatus |
| CN108873447A (en) * | 2018-06-14 | 2018-11-23 | 业成科技（成都）有限公司 | Touch control display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020118930A1 (en) | 2020-06-18 |
| CN109659340A (en) | 2019-04-19 |
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