CN111312789A - Display panel and display device - Google Patents
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- CN111312789A CN111312789A CN202010130643.3A CN202010130643A CN111312789A CN 111312789 A CN111312789 A CN 111312789A CN 202010130643 A CN202010130643 A CN 202010130643A CN 111312789 A CN111312789 A CN 111312789A
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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
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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
-
- 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
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
Abstract
The invention discloses a display panel and a display device. The display panel comprises a substrate, a light emitting layer and a pixel limiting layer; the pixel limiting layer is arranged on the substrate and comprises pixel limiting structures arranged in an array mode, and opening areas are formed among the pixel limiting structures; the light emitting layer includes a plurality of sub-pixels located at the opening area; the pixel limiting layer comprises a first substrate, a second substrate and a first radiation protection layer, wherein the first radiation protection layer is positioned on the surface of one side, away from the substrate, of the pixel limiting layer. According to the display panel provided by the embodiment of the invention, the first irradiation protective layer is arranged on the surface of the pixel limiting layer, so that ultraviolet rays can be prevented from irradiating the pixel limiting layer, the decomposition of a film layer is further avoided, the display effect of the display panel is improved, and the service life of a screen body is prolonged.
Description
Technical Field
The embodiment of the invention relates to the technical field of display panels, in particular to a display panel and a display device.
Background
An Organic Light-Emitting Diode (OLED) display panel has the advantages of Light weight, wide viewing angle, fast response time, and the like, and thus is considered as a next-generation novel display technology.
The OLED display panel comprises a planarization layer, a pixel limiting layer and other organic polymer material film layers, and the materials have decomposition problems under the irradiation of high temperature or ultraviolet rays, so that the visual effect of a screen body is influenced, and the service life of the screen body is deteriorated.
Disclosure of Invention
Embodiments of the present invention provide a display panel and a display device to solve the problem that an organic film layer in the display panel is decomposed when exposed to ultraviolet light.
In a first aspect, an embodiment of the present invention provides a display panel, including a substrate, a light emitting layer, and a pixel defining layer; the pixel limiting layer is arranged on the substrate and comprises pixel limiting structures arranged in an array mode, and opening areas are formed among the pixel limiting structures; the light emitting layer includes a plurality of sub-pixels located at the opening area; the pixel limiting layer comprises a first substrate, a second substrate and a first radiation protection layer, wherein the first radiation protection layer is positioned on the surface of one side, away from the substrate, of the pixel limiting layer.
Optionally, the substrate includes a substrate and a planarization layer arranged in a stacked manner; the device also comprises a second irradiation protection layer; the second radiation protection layer has a first surface remote from the substrate and a second surface proximate to the substrate, at least one of the first surface and the second surface being contiguous with the planarization layer.
Optionally, the second radiation protection layer is located inside the planarization layer.
Preferably, an orthographic projection of the second radiation protection layer on the substrate overlaps with an orthographic projection of the planarization layer on the substrate.
Optionally, the second radiation protection layer is located on the planarization layer surface.
Preferably, an orthographic projection of the second radiation protection layer on the substrate does not overlap with an orthographic projection of an adjacent insulating layer on the substrate.
Optionally, the first and/or second radiation protection layers are laminated composite layers.
Optionally, the laminated composite material layer includes a metal material layer and a graphene material layer.
Preferably, the metal material layer is a metal tungsten material layer or a metal chromium material layer.
Optionally, a surface of the laminated composite material layer on a side close to the substrate is a graphene material layer.
Optionally, the thickness of the single-layer graphene material layer ranges from 0.3nm to 1.3nm, and the thickness of the single-layer metal material layer ranges from 10nm to 20 nm.
Optionally, the laminated composite layer has a thickness in the range of 60nm to 100 nm.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel according to any one of the first aspect.
According to the display panel provided by the embodiment of the invention, the display panel comprises a substrate, a light-emitting layer and a pixel limiting layer; the pixel limiting layer is arranged on the substrate and comprises pixel limiting structures arranged in an array mode, and opening areas are formed among the pixel limiting structures; the light emitting layer includes a plurality of sub-pixels located at the opening area; the pixel limiting layer comprises a first substrate, a second substrate and a first radiation protection layer, wherein the first radiation protection layer is positioned on the surface of one side, away from the substrate, of the pixel limiting layer. Through set up first irradiation protective layer at pixel limit layer surface, can prevent that ultraviolet ray from shining pixel limit layer, and then avoid the rete to decompose, improve display panel display effect and life.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As mentioned in the background art, the display panel includes non-light-emitting organic insulating layers such as a planarization layer and a pixel definition layer, and the layers are unstable under illumination, and the inventors have found through research that the non-light-emitting organic insulating layers have a decomposition problem under illumination of ultraviolet light, generate gas molecules such as water molecules, and damage functional layers of the display device, especially a metal electrode layer and a light-emitting material layer, and further cause display abnormalities such as color cast and brightness reduction of the display panel, and affect the display effect and the service life of the display panel. In the manufacturing process of the display panel, for example, the cleaning process before the evaporation process is irradiated by ultraviolet rays to remove the organic materials attached to the surface, and when the display panel is operated or stored in the environment of sunlight irradiation, high temperature and the like, the non-luminous organic insulating layer made of the organic polymer material has a risk of being damaged.
Based on the above technical problem, the present embodiment proposes the following solutions: the display panel comprises a substrate, a light emitting layer and a pixel limiting layer; the pixel limiting layer is arranged on the substrate and comprises pixel limiting structures arranged in an array mode, and opening areas are formed among the pixel limiting structures; the light-emitting layer comprises a plurality of sub-pixels, and the sub-pixels are positioned in the opening area; the pixel limiting layer is arranged on the surface of the pixel limiting layer, which is far away from the substrate. According to the display panel provided by the embodiment of the invention, the irradiation protection layer is arranged on the surface of the pixel limiting layer, namely, the shielding is formed on the surface of the pixel limiting layer, so that ultraviolet rays can be prevented from irradiating the pixel limiting layer, the decomposition of the pixel limiting layer is further avoided, and the service life and the display effect of the display panel are improved. The first radiation protection layer can be a film layer reflecting ultraviolet rays or a film layer with ultraviolet ray absorption performance, and can protect a pixel limiting layer and a non-luminous organic insulation layer such as a planarization layer in the front end process of the pixel limiting layer as long as the ultraviolet rays can be weakened or partially weakened.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, in this embodiment, a display panel 10 includes a substrate 100, a light emitting layer, and a pixel defining layer, the pixel defining layer is disposed on the substrate 100, the pixel defining layer includes pixel defining structures 310 arranged in an array, an opening area is formed between the pixel defining structures 310, the light emitting layer includes a plurality of sub-pixels 210, the sub-pixels 210 are located in the opening area, and a first radiation protection layer 400 is located on a side surface of the pixel defining layer away from the substrate 100. I.e. on the surface of the pixel defining structure 310 on the side remote from the substrate 100. The first radiation protection layer 400 is located on the surface of the pixel defining layer on the side away from the substrate 100, and may be located on a part of the surface or may be located on the whole surface, i.e. partially or completely covers the surface of the pixel defining layer on the side away from the substrate 100. By forming the first irradiation protection layer 400 on the surface of the pixel defining layer, the pixel defining layer is prevented from being directly exposed to high temperature, light.
In this embodiment, the sub-pixels 210 may include sub-pixels of multiple colors, for example, the sub-pixels 210 include a red sub-pixel, a blue sub-pixel, and a green sub-pixel, and the color display of the display panel 10 is realized by the array arrangement of the sub-pixels of multiple colors. The pixel defining structures 310 form an opening region therebetween, and the sub-pixels 210 are located in the opening region to form an array of pixel structures.
In the process of preparing the display panel, the array substrate needs to be cleaned before the organic light-emitting material is evaporated, so that poor evaporation caused by impurities is avoided, and the array substrate is directly exposed to ultraviolet light irradiation in the subsequent cleaning process, namely, non-light-emitting organic insulating layers such as a pixel limiting layer and a planarization layer are directly exposed to ultraviolet light irradiation, so that the risk of decomposition of the film layers and damage to adjacent film layers is caused. In the embodiment of the application, the first irradiation protection layer is arranged on the surface of the pixel limiting layer, so that the high polymer material film layers such as the pixel limiting layer can be protected in the cleaning process, the film layer decomposition risk can be eliminated in all subsequent processes or the processes of storage, transfer and the like, the display panel is protected, and the service life and the display effect of the display panel are improved.
In another embodiment provided by the present invention, the substrate 100 includes a substrate 110, a planarization layer 600; a second radiation protection layer 500; the second irradiation protection layer 500 has a first surface remote from the substrate 110 and a second surface close to the substrate 110, at least one of the first surface and the second surface being adjacent to the planarization layer 600. That is, in the direction from the pixel defining layer to the substrate 100, the planarization layer 600 has opposite first and second surfaces, at least one of which is adjacent to the planarization layer 600, that is, the second irradiation protection layer 500 is located at the surface or inside of the pixel defining layer. By providing the second irradiation protection layer 500 on the pixel defining layer, decomposition of the organic layer can be further prevented, and not only ultraviolet rays irradiated from the front surface of the display panel 10 but also ultraviolet rays irradiated from the back surface of the display panel 10 can be blocked, that is, light incident from both the substrate 110 side and the pixel defining layer side can be blocked, thereby completely protecting the display panel 10.
Fig. 2 is a schematic structural diagram of another display panel 10 according to an embodiment of the present invention, in this embodiment, the second irradiation protection layer 500 is located inside the planarization layer 600, that is, the first surface and the second surface are both adjacent to the planarization layer 600, and an orthographic projection of the second irradiation protection layer 500 on the substrate 110 overlaps with an orthographic projection of the planarization layer 600 on the substrate 110. That is, the second radiation protection layer 500 is disposed over the entire planarization layer 600, so that the decomposition of the organic layer can be maximally prevented. Of course, in other embodiments, the second irradiation protection layer 500 may also be covered by the planarization layer 600, that is, the orthographic projection of the second irradiation protection layer 500 on the substrate 110 is smaller than the orthographic projection of the planarization layer 600 on the substrate 110, and the present application is not limited in particular as long as the existence of the second irradiation protection layer 500 can improve the ultraviolet ray resistance of the display panel 10.
In this embodiment, the substrate 100 includes a substrate 110, a buffer layer 120, a Thin Film Transistor (TFT), a planarization layer 600, a first electrode 700, and a pixel defining layer. The substrate 110 serves as a support, and may be any of rigid substrates such as a glass substrate, a metal substrate, and a quartz substrate, or may be a flexible substrate made of a material such as polyimide. A buffer layer 120 on the substrate to block the substrate 110 and protect the transistor. The thin film transistor is used for driving the organic light emitting diode to emit light, and illustratively comprises an active layer, a gate insulating layer 130, a capacitance dielectric layer 140, an interlayer insulating layer 150, a gate electrode, a source electrode and a drain electrode, wherein the source electrode and the drain electrode are electrically connected with the active layer through a via hole positioned between the gate insulating layer and the interlayer insulating layer. The planarization layer 600 is used for planarization and provides support for subsequent processes.
In general, an OLED light emitting device includes a first electrode, a light emitting layer, and a second electrode that are stacked, the light emitting layer being an organic light emitting layer, and electrons and holes injected through the first and second electrodes are combined with each other at the light emitting layer to emit light. The first electrode is an anode and the corresponding second electrode is a cathode. The light emitting layer may be an organic light emitting layer, and may further include at least one of common layers including a hole injection layer, a hole transport layer, a hole blocking layer, an electron transport layer, and an electron injection layer to improve light emitting efficiency.
It is understood that, in order to realize the driving of the display panel 10, the anode and the TFT are electrically connected through the via hole, and in the prior art, during the etching process, a slope is formed during the etching process, so that the planarization layer 600 includes a slope structure, and the overlapping of the orthographic projection of the second irradiation protection layer 500 on the substrate 110 and the orthographic projection of the planarization layer 600 on the substrate 110 means that the areas of the adjacent surfaces of the planarization layer 600 and the second irradiation protection layer 500 are the same, and the shape of the side surface is consistent with the slope of the via hole.
In an embodiment of the present application, the substrate 100 includes a substrate 110, a TFT layer, and a planarization layer 600, where the planarization layer 600 has a third surface close to the substrate 110 and a fourth surface far from the substrate 110, and when the second irradiation protection layer 500 is located inside the planarization layer 600, the second irradiation protection layer 500 is located near the third surface, so that ultraviolet rays incident from the substrate 110 side can be better blocked, and in addition, because the second irradiation protection layer 500 is located inside the planarization layer 600, or all adjacent films of the second irradiation protection layer 500 are the planarization layer 600, in design, the possibility of the second irradiation protection layer 500 affecting the performance of the display panel 10 itself is reduced to the minimum, for example, driving, light transmittance, and the like, so as to increase the range of material selection of the second irradiation protection layer 500, and reduce the design difficulty and the process difficulty. It is understood that the second irradiation protection layer 500 is disposed adjacent to the third surface, and may be formed by first forming a thin planarization layer, then preparing the second irradiation protection layer 500, and then forming the main planarization layer, so that the second irradiation protection layer 500 is not only located inside the planarization layer 600, but also the planarization layer 600 which is not protected by the second irradiation can be exposed to a minimum extent.
In the further display panel 10 provided in the embodiment of the present invention, the second radiation protection layer 500 is located on the surface of the planarization layer 600, preferably, on the lower surface of the planarization layer 600, that is, the first surface is adjacent to the third surface, and the planarization layer 600 and the pixel defining layer are located between the first radiation protection layer 400 and the second radiation protection layer 500, so as to implement ultraviolet ray irradiation during different processes and use, and the second radiation protection layer 500 may completely cover the surface of the planarization layer 600 or partially cover the surface of the planarization layer 600, which is not limited in this application in particular, as long as the existence of the second radiation protection layer 500 can further improve the ultraviolet ray resistance of the display panel 10.
When the display panel 10 includes the second radiation protection layer 500, the thickness of the planarization layer 600 may be reduced appropriately, that is, the sum of the thickness of the planarization layer 600 and the thickness of the second radiation protection layer 500 may be preset to be equal to the thickness of the planarization layer 600 in the prior art, and the ultraviolet ray irradiation resistance of the display panel 10 is achieved without increasing the overall thickness of the display panel 10, and the second radiation protection layer 500 not only has the ultraviolet ray resistance performance, but also has the planarization performance.
In the embodiment of the present application, the first irradiation protection layer 400 and/or the second irradiation protection layer 500 are laminated composite material layers. That is, the laminated composite material layer may be formed in a laminated arrangement of a plurality of ultraviolet ray resistant materials. Specifically, the laminated composite material layer comprises a metal material layer and a graphene material layer which are arranged in a laminated mode. Furthermore, the metal material layer is a metal tungsten material layer or a metal chromium material layer. When the metal material layer and the graphene material layer irradiation resistance that stack up the setting, range upon range of combined material layer has better material strength, to flexible display panel or the display panel of buckling, can provide support for the base plate, can release stress simultaneously, avoid display panel to buckle deformation and rete deformation, the fracture of in-process, improve display panel bending resistance.
In the metal material layer and the graphene material layer which are arranged in a laminated manner, the thickness range of the single-layer graphene material layer is 0.3-1.3 nm, and the thickness range of the single-layer metal material layer is 10-20 nm. The range of the thickness of the laminated composite material layer is 60nm to 100nm, and the composite material layer can have good ultraviolet ray radiation resistance in the thickness range, so that the ultraviolet ray can be prevented from penetrating through the first radiation protection layer 400 or the second radiation protection layer 500 to cause the decomposition of the planarization layer 600 or the pixel limiting layer. In addition, the metal material layer can avoid the rete swelling that the heat accumulation caused when absorbing ultraviolet ray with the range upon range of setting mode of graphite alkene material layer.
The laminated composite material layer at least comprises a graphene material layer and a metal material layer, and the graphene material layer can be positioned on the upper side of the metal material layer and also can be positioned on the lower side of the metal material layer. In general, the metal material layer is formed by a magnetron sputtering film forming process, the graphene material layer is formed by a spin coating film forming process, and the graphene material layer is preferentially prepared to avoid damage to an adjacent film layer by the metal material layer forming process, especially to an adjacent functional film layer, for example, when the second irradiation protection layer 500 is located on the lower surface of the planarization layer 600, the graphene material layer is preferentially prepared to avoid damage to the TFT device by the metal material layer forming process.
In an embodiment of the present application, the second irradiation protection layer 500 is located on the surface of the planarization layer 600, an orthographic projection of the second irradiation protection layer 500 on the substrate 110 does not overlap with an orthographic projection of an adjacent insulating layer on the substrate 110, when the second irradiation protection layer 500 is located on the surface of the planarization layer 600 on the side away from the substrate 110, the orthographic projection of the second irradiation protection layer 500 on the substrate 110 does not overlap with an orthographic projection of an adjacent anode on the substrate 110, and when the second irradiation protection layer 500 is located on the surface of the planarization layer 600 on the side close to the substrate 110, the orthographic projection of the second irradiation protection layer 500 on the substrate 110 does not overlap with an orthographic projection of a TFT on the substrate 110, that is, the second irradiation protection layer 500 is not in contact with an insulating layer by a patterning method, that is, interference with an adjacent insulating layer can be avoided without. It is understood that the active layer herein refers to a film layer that exerts electrical properties during the use of the display panel 10, including but not limited to the above-mentioned film layer. Thereby, the material selection range of the first and second irradiation protection layers 400 and 500 may be increased. It should be understood that the specific arrangement may be determined according to the materials of the first irradiation protection layer 400 and the second irradiation protection layer 500, for example, when a laminated composite material layer in which a metal material layer and a graphene material layer are laminated is used, the material may only interfere with the anode, and therefore, as long as the laminated composite material layer is ensured to be free from contact with the anode layer, the interference between the membrane layers that may occur may be avoided.
Of course, in addition to the laminated composite material layer of the metal material layer and the graphene material layer, the metal material layer or the graphene material layer may be independently used, and the ultraviolet light can be reflected or absorbed to protect the adjacent non-light-emitting organic insulating layers. In addition, materials having ultraviolet light absorption capability, such as titanium dioxide and zinc oxide, may also be selected to form the first irradiation protection layer 400 and/or the second irradiation protection layer 500, so long as the first irradiation protection layer 400 is prepared on the surface of the pixel defining layer, or the second irradiation protection layer 500 is simultaneously prepared on the surface or inside of the planarization layer 600, protection of the non-light emitting organic insulating layer can be achieved.
In general, the display panel 10 forms a planarized structure, then evaporates an organic light emitting material to form a light emitting layer, and then prepares a cathode. When the display panel 10 includes the first irradiation protection layer 400, the first irradiation protection layer 400 may be prepared after patterning the planarization layer, or the planarization layer 600 and the first irradiation protection layer 400 may be simultaneously patterned after preparing the first irradiation protection layer 400, which saves the process. In addition, when the first irradiation protection layer 400 is a laminated composite material layer of a metal material layer and a graphene material layer, the first irradiation protection layer 400 is prepared before the light emitting layer is formed, so that the influence on the evaporation yield and the device performance caused by the generation of impurity particles in the preparation process of the first irradiation protection layer 400 can be avoided.
The embodiment of the invention also provides a display device, and the display device provided by the embodiment of the invention comprises any one display panel provided by the embodiment of the invention. Since the display device adopts the display panel provided by the embodiment of the invention, the display device also has the beneficial effects of the display panel of the embodiment. It should be noted that the display device provided in the embodiment of the present invention may further include other circuits and devices for supporting normal operation of the display device, and the display device may be a mobile phone, a computer, a television, a wearable device, and the like.
In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A display panel is characterized by comprising a substrate, a light-emitting layer and a pixel limiting layer; the pixel limiting layer is arranged on the substrate and comprises pixel limiting structures arranged in an array mode, and opening areas are formed among the pixel limiting structures; the light emitting layer includes a plurality of sub-pixels located at the opening area; the pixel limiting layer comprises a first substrate, a second substrate and a first radiation protection layer, wherein the first radiation protection layer is positioned on the surface of one side, away from the substrate, of the pixel limiting layer.
2. The display panel according to claim 1, wherein the base plate comprises a substrate, a planarization layer, and a plurality of electrodes; the device also comprises a second irradiation protection layer; the second radiation protection layer has a first surface remote from the substrate and a second surface proximate to the substrate, at least one of the first surface and the second surface being contiguous with the planarization layer.
3. The display panel according to claim 2, wherein the second irradiation protection layer is located inside the planarization layer;
preferably, an orthographic projection of the second radiation protection layer on the substrate overlaps with an orthographic projection of the planarization layer on the substrate.
4. The display panel according to claim 2, wherein the second radiation protection layer is on the surface of the planarization layer;
preferably, an orthographic projection of the second radiation protection layer on the substrate does not overlap with an orthographic projection of an adjacent insulating layer on the substrate.
5. The display panel according to any of claims 1 to 4, wherein the first and/or second radiation protection layer is a laminated composite layer.
6. The display panel of claim 5, wherein the laminated composite material layer comprises a metal material layer, a graphene material layer;
preferably, the metal material layer is a metal tungsten material layer or a metal chromium material layer.
7. The display panel according to claim 6, wherein a surface of the laminated composite material layer on a side close to the substrate is a graphene material layer.
8. The display panel of claim 6, wherein the single layer graphene material layer has a thickness in the range of 0.3nm to 1.3nm and the single layer metallic material layer has a thickness in the range of 10nm to 20 nm.
9. The display panel according to claim 8, wherein the laminated composite layer has a thickness of 60nm to 100 nm.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130643.3A CN111312789A (en) | 2020-02-28 | 2020-02-28 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130643.3A CN111312789A (en) | 2020-02-28 | 2020-02-28 | Display panel and display device |
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| CN111312789A true CN111312789A (en) | 2020-06-19 |
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| CN202010130643.3A Pending CN111312789A (en) | 2020-02-28 | 2020-02-28 | Display panel and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111816793A (en) * | 2020-08-20 | 2020-10-23 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN112786812A (en) * | 2021-01-29 | 2021-05-11 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113299699A (en) * | 2021-05-08 | 2021-08-24 | 武汉华星光电技术有限公司 | Display panel |
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| CN109301082A (en) * | 2017-07-25 | 2019-02-01 | 上海和辉光电有限公司 | Display panel and display device |
| CN109887955A (en) * | 2017-12-06 | 2019-06-14 | 三星显示有限公司 | Oganic light-emitting display device |
| CN110085772A (en) * | 2019-06-04 | 2019-08-02 | 京东方科技集团股份有限公司 | A kind of organic LED display panel and preparation method thereof |
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| CN109301082A (en) * | 2017-07-25 | 2019-02-01 | 上海和辉光电有限公司 | Display panel and display device |
| CN109887955A (en) * | 2017-12-06 | 2019-06-14 | 三星显示有限公司 | Oganic light-emitting display device |
| CN110085772A (en) * | 2019-06-04 | 2019-08-02 | 京东方科技集团股份有限公司 | A kind of organic LED display panel and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816793A (en) * | 2020-08-20 | 2020-10-23 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN111816793B (en) * | 2020-08-20 | 2023-07-21 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN112786812A (en) * | 2021-01-29 | 2021-05-11 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113299699A (en) * | 2021-05-08 | 2021-08-24 | 武汉华星光电技术有限公司 | Display panel |
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