CN103915482B - A kind of organic EL display panel, its manufacture method and display device - Google Patents
A kind of organic EL display panel, its manufacture method and display device Download PDFInfo
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- CN103915482B CN103915482B CN201410120882.5A CN201410120882A CN103915482B CN 103915482 B CN103915482 B CN 103915482B CN 201410120882 A CN201410120882 A CN 201410120882A CN 103915482 B CN103915482 B CN 103915482B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 71
- 238000005401 electroluminescence Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 14
- -1 polyhexafluoropropylene Polymers 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 5
- 229920002776 polycyclohexyl methacrylate Polymers 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 8
- 239000003086 colorant Substances 0.000 description 7
- 239000010409 thin film Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/878—Arrangements for extracting light from the devices comprising reflective means
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a kind of organic EL display panel, its manufacture method and display device, define layer because pixel defines at least two-layer pixel that structure includes being stacked, and define layer away from the pixel of underlay substrate and be coated on the pixel of adjacent substrate substrate and define the outside of layer, and the refractive index defining layer away from the pixel of underlay substrate is more than the pixel of neighbouring described underlay substrate and defines the refractive index of layer.Therefore, the principle being totally reflected can occur by optically denser medium directive optically thinner medium according to light, when the lateral light that organic electroluminescence structure is sent out is irradiated to dot structure, the lateral light that angle of incidence is more than the critical angle of total reflection can be totally reflected, thus the lateral light of organic electroluminescence structure directive dot structure is reflexed to the external world, thus not only avoid the phenomenon that organic EL display panel occurs light leak and photochromic interference.And because lateral light is not easy to be defined structure absorption by pixel, therefore improve the luminous efficiency of organic EL display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an organic electroluminescent display panel, a method for manufacturing the same, and a display device.
Background
At present, Organic electroluminescent Display devices (OLEDs) have become the mainstream of Display fields due to their characteristics of fast response, wide color gamut, ultra-thin, flexibility, and the like, compared with conventional Liquid Crystal Display devices (LCDs).
The structure of the OLED display device mainly comprises: the organic light emitting diode comprises a substrate, a plurality of organic electroluminescent structures and a pixel defining layer, wherein the organic electroluminescent structures are arranged in a matrix on the substrate; wherein each organic electroluminescent pixel structure comprises an anode and a cathode which are oppositely arranged, and a light-emitting layer positioned between the anode and the cathode. The light emission of the OLED display device is achieved by exciting an organic material in a light emitting layer to emit light when electrons in a cathode and holes in an anode recombine in the light emitting layer. OLEDs can be classified into two broad categories, namely, passive driving and active driving, namely, direct addressing and Thin Film Transistor (TFT) matrix addressing, according to driving methods. Where active driving is also referred to as Active Matrix (AM), each light emitting cell in an active OLED display device is independently controlled by TFT addressing.
In a conventional active OLED display device, the pixel defining layer is made of a light-transmitting material, so that lateral light emitted by each organic electroluminescent structure is reflected by the cathode and emitted into adjacent organic electroluminescent structures of other colors, resulting in light leakage and color interference, which may cause a decrease in color purity and contrast of the active OLED display device. In order to solve the above problem, a light-impermeable compound is used instead of a light-transmissive material as a material of the pixel defining layer. However, since opaque compounds, such as colorants, are carbon-containing materials having a generally low dielectric constant, the electro-optical performance of the organic electroluminescent structure of the active OLED display device may be degraded. In addition, the lateral light is also easily absorbed by the opaque material, resulting in a reduction in the overall luminous efficiency of the active OLED display device.
Disclosure of Invention
The organic electroluminescence display panel, the manufacturing method thereof and the display device provided by the embodiment of the invention can not only avoid light leakage and light color interference of the organic electroluminescence display panel, but also improve the luminous efficiency of the organic electroluminescence display panel.
An organic electroluminescence display panel provided in an embodiment of the present invention includes: the organic electroluminescence device comprises a substrate base plate, organic electroluminescence structures and a pixel defining structure, wherein the organic electroluminescence structures are arranged on the substrate base plate in a matrix mode, and the pixel defining structure is positioned between the adjacent organic electroluminescence structures;
the pixel defining structure comprises at least two pixel defining layers arranged in a stacked manner on the substrate; wherein,
the pixel defining layer far away from the substrate base plate is coated on the outer side of the pixel defining layer adjacent to the substrate base plate, and the refractive index is larger than that of the pixel defining layer adjacent to the substrate base plate.
In the organic electroluminescent display panel provided by the embodiment of the invention, the pixel defining structure comprises at least two pixel defining layers which are stacked, the pixel defining layer far away from the substrate covers the outer side of the pixel defining layer near the substrate, and the refractive index of the pixel defining layer far away from the substrate is greater than that of the pixel defining layer near the substrate. Therefore, according to the principle that the light is totally reflected when the light is emitted from the optically dense medium to the optically sparse medium, when the lateral light emitted by the organic electroluminescent structure in the organic electroluminescent display panel irradiates the pixel structure, the lateral light with the incident angle larger than the critical angle of total reflection is totally reflected, so that the lateral light emitted by the organic electroluminescent structure to the pixel structure is reflected to the outside, and therefore, the lateral light emitted by the organic electroluminescent structure can be prevented from being emitted to the adjacent organic electroluminescent structures with other colors, and the phenomena of light leakage and light color interference of the organic electroluminescent display panel are avoided. In addition, since the lateral light emitted by the organic electroluminescent structure is not easily absorbed by the pixel defining structure, the light emitting efficiency of the organic electroluminescent display panel can be improved.
Preferably, in the organic electroluminescent display panel provided by the embodiment of the present invention, the pixel defining structure includes a first pixel defining layer on the substrate, and a second pixel defining layer on the first pixel defining layer.
Preferably, in the organic electroluminescent display panel provided by the embodiment of the present invention, the refractive index of the first pixel defining layer is greater than 1.4 and less than 1.6;
the second pixel defining layer has a refractive index greater than 1.6 and less than 2.0.
Preferably, in the organic electroluminescent display panel according to the embodiment of the present invention, the material of the first pixel defining layer and the material of the second pixel defining layer are both organic insulating materials.
Preferably, in the organic electroluminescent display panel according to an embodiment of the present invention, the organic insulating material is polyimide, polymethyl methacrylate, polyhexafluoropropylene, fluorinated parylene, fluorinated polysilyl ether, polystyrene, polycyclohexyl methacrylate, or polysiloxane.
The method for manufacturing the organic electroluminescent display panel comprises the steps of forming a pattern of organic electroluminescent structures arranged in a matrix form and a pattern of pixel defining structures positioned between the adjacent patterns of the organic electroluminescent structures on a substrate, wherein,
the pixel defining structure comprises at least two pixel defining layers arranged in a stacked manner on the substrate; the pixel defining layer far away from the substrate base plate is coated on the outer side of the pixel defining layer close to the substrate base plate, and the refractive index of the pixel defining layer is larger than that of the pixel defining layer close to the substrate base plate.
In the method for manufacturing the organic electroluminescent display panel according to the embodiment of the invention, the pixel defining structure includes at least two pixel defining layers which are stacked, the pixel defining layer far away from the substrate covers the outer side of the pixel defining layer near the substrate, and the refractive index of the pixel defining layer far away from the substrate is greater than that of the pixel defining layer near the substrate. Therefore, according to the principle that the light is totally reflected when the light is emitted from the optically dense medium to the optically sparse medium, when the lateral light emitted by the organic electroluminescent structure in the organic electroluminescent display panel irradiates the pixel structure, the lateral light with the incident angle larger than the critical angle of total reflection is totally reflected, so that the lateral light emitted by the organic electroluminescent structure to the pixel structure is reflected to the outside, and therefore, the lateral light emitted by the organic electroluminescent structure can be prevented from being emitted to the adjacent organic electroluminescent structures with other colors, and the phenomena of light leakage and light color interference of the organic electroluminescent display panel are avoided. In addition, since the lateral light emitted by the organic electroluminescent structure is not easily absorbed by the pixel defining structure, the light emitting efficiency of the organic electroluminescent display panel can be improved.
Preferably, the method for forming a pattern of the pixel defining structure according to the embodiment of the present invention includes:
after each layer of pixel definition layer film is deposited on the substrate, a pattern of the pixel definition layer is formed in the pixel definition layer film by adopting a one-time composition process.
The display device provided by the embodiment of the invention comprises the organic electroluminescent display panel provided by the embodiment of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an organic electroluminescent display panel according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of an organic electroluminescent display panel according to an embodiment of the present invention;
fig. 3a to fig. 3d are schematic structural diagrams of the pixel defining structure manufacturing method according to the embodiment of the invention after the steps are performed.
Detailed Description
The following describes in detail specific embodiments of an organic electroluminescent display panel, a method for manufacturing the same, and a display device according to embodiments of the present invention with reference to the accompanying drawings.
In the drawings, the thickness and shape of each film layer do not reflect the real proportion of the organic electroluminescent display panel, and the purpose is only to schematically illustrate the content of the invention.
An organic electroluminescence display panel provided in an embodiment of the present invention, as shown in fig. 1 and 2, includes: a substrate 100, organic electroluminescent structures 200 arranged in a matrix on the substrate 100, and a pixel defining structure 300 between adjacent organic electroluminescent structures 200;
the pixel defining structure 300 includes at least two pixel defining layers stacked on a substrate base plate 100; wherein,
the pixel defining layer distant from the base substrate 100 is wrapped outside the pixel defining layer adjacent to the base substrate 100, and the refractive index of the pixel defining layer distant from the base substrate 100 is greater than that of the pixel defining layer adjacent to the base substrate 100.
In the organic electroluminescent display panel provided by the embodiment of the invention, the pixel defining structure comprises at least two pixel defining layers which are stacked, the pixel defining layer far away from the substrate covers the outer side of the pixel defining layer near the substrate, and the refractive index of the pixel defining layer far away from the substrate is greater than that of the pixel defining layer near the substrate. Therefore, according to the principle that the light is totally reflected when the light is emitted from the optically dense medium to the optically sparse medium, when the lateral light emitted by the organic electroluminescent structure in the organic electroluminescent display panel irradiates the pixel structure, the lateral light with the incident angle larger than the critical angle of total reflection is totally reflected, so that the lateral light emitted by the organic electroluminescent structure to the pixel structure is reflected to the outside, and therefore, the lateral light emitted by the organic electroluminescent structure can be prevented from being emitted to the adjacent organic electroluminescent structures with other colors, and the phenomena of light leakage and light color interference of the organic electroluminescent display panel are avoided. In addition, since the lateral light emitted by the organic electroluminescent structure is not easily absorbed by the pixel defining structure, the light emitting efficiency of the organic electroluminescent display panel can be improved.
Specifically, in the above-mentioned organic electroluminescent display panel provided by the embodiment of the present invention, the pixel defining structure 300 may have a structure as shown in fig. 1, including a first pixel defining layer 310 on the substrate 100 and a second pixel defining layer 320 on the first pixel defining layer 310, or as shown in fig. 2, the pixel defining structure 300 may further include a third pixel defining layer 330 on the second pixel defining layer 320 and a fourth pixel defining layer 340 on the third pixel defining layer 330; of course, the pixel defining structure 300 may further include more pixel defining layers sequentially disposed on the fourth pixel defining layer 340, which is not limited herein.
Specifically, in the organic electroluminescent display panel provided by the embodiment of the present invention, the more pixel defining layers in the pixel defining structure, the stronger the performance of the organic electroluminescent display panel in preventing light leakage and light color interference, but the relative manufacturing process is also complicated, and specifically, the number of the pixel defining layers in the pixel defining structure may be determined according to actual situations.
Specifically, the following describes the organic electroluminescent display panel provided by the embodiment of the present invention in detail by taking an example that the pixel defining structure includes only two pixel defining layers.
Preferably, in the organic electroluminescent display panel provided by the embodiment of the present invention, the refractive index of the first pixel defining layer is preferably greater than 1.4 and less than 1.6; accordingly, the refractive index of the second pixel defining layer is preferably greater than 1.6 and less than 2.0.
Specifically, in the organic electroluminescent display panel provided in the embodiment of the present invention, both the material of the first pixel defining layer and the material of the second pixel defining layer may be organic insulating materials, and certainly, the organic electroluminescent display panel may also be other materials capable of implementing the solution of the present invention, and is not limited herein.
Further, in the above organic electroluminescent display panel according to an embodiment of the present invention, the organic insulating material may preferably be polyimide, polymethyl methacrylate, polyhexafluoropropylene, fluorinated parylene, fluorinated polysilyl ether, polystyrene, polycyclohexyl methacrylate, polysiloxane, or the like.
Further, in the above-mentioned organic electroluminescent display panel provided by the embodiment of the present invention, as shown in fig. 1 and 2, the organic electroluminescent structure 200 may include an anode layer 210, a hole injection layer 220, a hole transport layer 230, an organic light emitting layer 240, an electron transport layer 250, an electron injection layer 260, and a cathode layer 270, which are stacked. Specifically, the specific structure of the organic electroluminescent structure belongs to the prior art, and is not described in detail herein.
Based on the same inventive concept, the embodiment of the invention also provides a manufacturing method of the organic electroluminescent display panel, which comprises the steps of forming a graph of organic electroluminescent structures arranged in a matrix form and a graph of a pixel defining structure positioned between the graphs of the adjacent organic electroluminescent structures on the substrate;
the pixel defining structure comprises at least two pixel defining layers which are arranged on the substrate in a stacked mode; the pixel defining layer far away from the substrate base plate covers the outer side of the pixel defining layer close to the substrate base plate, and the refractive index of the pixel defining layer is larger than that of the pixel defining layer close to the substrate base plate.
In the method for manufacturing the organic electroluminescent display panel according to the embodiment of the invention, the pixel defining structure includes at least two pixel defining layers which are stacked, the pixel defining layer far away from the substrate covers the outer side of the pixel defining layer near the substrate, and the refractive index of the pixel defining layer far away from the substrate is greater than that of the pixel defining layer near the substrate. Therefore, according to the principle that the light is totally reflected when the light is emitted from the optically dense medium to the optically sparse medium, when the lateral light emitted by the organic electroluminescent structure in the organic electroluminescent display panel irradiates the pixel structure, the lateral light with the incident angle larger than the critical angle of total reflection is totally reflected, so that the lateral light emitted by the organic electroluminescent structure to the pixel structure is reflected to the outside, and therefore, the lateral light emitted by the organic electroluminescent structure can be prevented from being emitted to the adjacent organic electroluminescent structures with other colors, and the phenomena of light leakage and light color interference of the organic electroluminescent display panel are avoided. In addition, since the lateral light emitted by the organic electroluminescent structure is not easily absorbed by the pixel defining structure, the light emitting efficiency of the organic electroluminescent display panel can be improved.
Specifically, the method for forming a pattern of a pixel defining structure according to the embodiment of the present invention includes:
after each layer of pixel definition layer film is deposited on the substrate, a pattern of the pixel definition layer is formed in the pixel definition layer film by adopting a one-time composition process.
Specifically, the following describes in detail specific steps of forming a pattern of the pixel defining structure provided by the embodiment of the present invention, taking an example in which the pixel defining structure includes a first pixel defining layer on the substrate and a second pixel defining layer on the first pixel defining layer.
Specifically, when the method is implemented, forming the pattern of the pixel defining structure may specifically include the following steps:
(1) depositing a first pixel defining layer 310 thin film on the base substrate 100, as shown in fig. 3 a;
specifically, in implementation, the first pixel defining layer film may be prepared by a coating method. The material of the first pixel defining layer thin film may be an organic insulating material having a refractive index of more than 1.4 and less than 1.6. Further, the organic insulating material may be polyimide, polymethyl methacrylate, polyhexafluoropropylene, fluorinated parylene, fluorinated silicone based ether, polystyrene, polycyclohexyl methacrylate, polysiloxane, or the like, which is not limited herein.
(2) Forming a pattern of the first pixel defining layer 310 in the first pixel defining layer thin film through a one-time patterning process, as shown in fig. 3 b;
(3) depositing a second pixel defining layer 320 film on the first pixel defining layer 310, as shown in fig. 3 c;
specifically, in implementation, the second pixel defining layer film may be prepared by a coating method. The material of the second pixel defining layer thin film may be an organic insulating material having a refractive index of more than 1.6 and less than 2.0. Further, the organic insulating material may be polyimide, polymethyl methacrylate, polyhexafluoropropylene, fluorinated parylene, fluorinated silicone based ether, polystyrene, polycyclohexyl methacrylate, polysiloxane, or the like, which is not limited herein.
(4) A pattern of the second pixel defining layer 320 is formed in the second pixel defining layer thin film through a patterning process at one time, as shown in fig. 3 d.
Specifically, after the steps (1) to (4) are performed, the pattern of the pixel defining structure provided by the embodiment of the invention is obtained.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the organic electroluminescent display panel provided in the embodiment of the present invention, where the display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art, and are not described herein or should not be construed as limiting the invention. The implementation of the display device can be referred to the above embodiments of the organic electroluminescent display panel, and repeated descriptions are omitted.
According to the organic electroluminescence display panel, the manufacturing method thereof and the display device provided by the embodiment of the invention, the pixel defining structure comprises at least two pixel defining layers which are arranged in a stacking mode, the pixel defining layer far away from the substrate base plate covers the outer side of the pixel defining layer near the substrate base plate, and the refractive index of the pixel defining layer far away from the substrate base plate is larger than that of the pixel defining layer near the substrate base plate. Therefore, according to the principle that the light is totally reflected when the light is emitted from the optically dense medium to the optically sparse medium, when the lateral light emitted by the organic electroluminescent structure in the organic electroluminescent display panel irradiates the pixel structure, the lateral light with the incident angle larger than the critical angle of total reflection is totally reflected, so that the lateral light emitted by the organic electroluminescent structure to the pixel structure is reflected to the outside, and therefore, the lateral light emitted by the organic electroluminescent structure can be prevented from being emitted to the adjacent organic electroluminescent structures with other colors, and the phenomena of light leakage and light color interference of the organic electroluminescent display panel are avoided. In addition, since the lateral light emitted by the organic electroluminescent structure is not easily absorbed by the pixel defining structure, the light emitting efficiency of the organic electroluminescent display panel can be improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An organic electroluminescent display panel comprising: the organic electroluminescence device comprises a substrate base plate, organic electroluminescence structures which are arranged on the substrate base plate in a matrix mode, and pixel defining structures which are arranged between the adjacent organic electroluminescence structures, and is characterized in that:
the pixel defining structure comprises at least four pixel defining layers arranged in a stack on the substrate; wherein,
the pixel defining layer far away from the substrate base plate is coated on the outer side of the pixel defining layer adjacent to the substrate base plate, and the refractive index of the pixel defining layer is larger than that of the pixel defining layer adjacent to the substrate base plate; and the pixel limiting layers are sequentially coated and arranged on the substrate in the order from low to high according to the refractive index of the pixel limiting layers.
2. The organic electroluminescent display panel according to claim 1, wherein the pixel defining structure comprises a first pixel defining layer on the substrate base plate, and a second pixel defining layer over the first pixel defining layer.
3. The organic electroluminescent display panel according to claim 2, wherein the refractive index of the first pixel defining layer is greater than 1.4 and less than 1.6;
the second pixel defining layer has a refractive index greater than 1.6 and less than 2.0.
4. The organic electroluminescent display panel according to claim 3, wherein a material of the first pixel defining layer and a material of the second pixel defining layer are both organic insulating materials.
5. The organic electroluminescent display panel according to claim 4, wherein the organic insulating material is polyimide, polymethyl methacrylate, polyhexafluoropropylene, fluorinated parylene, fluorinated polysilyl ether, polystyrene, polycyclohexyl methacrylate, or polysiloxane.
6. A manufacturing method of an organic electroluminescent display panel is characterized in that: comprising forming a pattern of organic electroluminescent structures arranged in a matrix on a base substrate and a pattern of pixel defining structures located between adjacent patterns of the organic electroluminescent structures, wherein,
the pixel defining structure comprises at least four pixel defining layers arranged in a stack on the substrate; the pixel defining layer far away from the substrate base plate is coated on the outer side of the pixel defining layer adjacent to the substrate base plate, and the refractive index of the pixel defining layer is larger than that of the pixel defining layer adjacent to the substrate base plate; and the pixel limiting layers are sequentially coated and arranged on the substrate in the order from low to high according to the refractive index of the pixel limiting layers.
7. The method of claim 6, wherein forming the pattern of pixel defining structures comprises:
after each layer of pixel definition layer film is deposited on the substrate, a pattern of the pixel definition layer is formed in the pixel definition layer film by adopting a one-time composition process.
8. A display device comprising the organic electroluminescent display panel according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120882.5A CN103915482B (en) | 2014-03-27 | 2014-03-27 | A kind of organic EL display panel, its manufacture method and display device |
| PCT/CN2014/085590 WO2015143840A1 (en) | 2014-03-27 | 2014-08-29 | Organic electroluminescence display panel and manufacturing method therefor and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410120882.5A CN103915482B (en) | 2014-03-27 | 2014-03-27 | A kind of organic EL display panel, its manufacture method and display device |
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| CN103915482A CN103915482A (en) | 2014-07-09 |
| CN103915482B true CN103915482B (en) | 2017-03-01 |
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| CN103915482B (en) * | 2014-03-27 | 2017-03-01 | 京东方科技集团股份有限公司 | A kind of organic EL display panel, its manufacture method and display device |
| CN104269427B (en) * | 2014-09-05 | 2017-03-29 | 京东方科技集团股份有限公司 | A kind of organic LED display panel and preparation method thereof, display device |
| CN104393016B (en) * | 2014-10-30 | 2017-03-01 | 京东方科技集团股份有限公司 | A kind of OLED pixel unit, display base plate and preparation method, display device |
| CN104733501B (en) * | 2015-02-13 | 2018-06-15 | 京东方科技集团股份有限公司 | The production method of dot structure, display device and dot structure |
| CN104979375A (en) * | 2015-05-28 | 2015-10-14 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method therefor and display device |
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| CN106449719B (en) * | 2016-11-17 | 2019-08-23 | 广东聚华印刷显示技术有限公司 | A kind of organic light emitting display panel, device and production method |
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| CN108110038B (en) * | 2018-01-02 | 2021-06-25 | 上海天马微电子有限公司 | Organic light emitting display panel and display device |
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| CN103915482A (en) | 2014-07-09 |
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