CN1971933A - Organic electroluminescence display device - Google Patents
Organic electroluminescence display device Download PDFInfo
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- CN1971933A CN1971933A CN 200510101750 CN200510101750A CN1971933A CN 1971933 A CN1971933 A CN 1971933A CN 200510101750 CN200510101750 CN 200510101750 CN 200510101750 A CN200510101750 A CN 200510101750A CN 1971933 A CN1971933 A CN 1971933A
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- luminescent display
- powder
- organic electro
- organic
- spaced walls
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Abstract
This invention relates to organic laser display, which comprises one baseboard, one first electrode, one organic light layer, one second electrode and isolation wall, wherein, the above parts form several pixel areas and the isolation wall is set with reflection particles.
Description
[technical field]
The present invention relates to a kind of organic electro-luminescent display, especially a kind of organic electro-luminescent display that can improve light extraction efficiency.
[background technology]
Organic electro-luminescent display (Organic Electroluminescence DisplayDevice, OLED) because have self-luminous, briliancy height, advantages such as the visual angle is wide, response speed is fast, compact and power saving, become the flat panel display device of a new generation gradually.
Seeing also Fig. 1, is a kind of organic electro-luminescent display structural representation of prior art.This organic electro-luminescent display 100 comprises a substrate 110, an anode layer 111, a hole transmission layer 112, an organic luminous layer 113, an electron transfer layer 114, a cathode layer 115, a protective layer 116 and a spaced walls 118.This substrate 110, anode layer 111, hole transmission layer 112, organic luminous layer 113, electron transfer layer 114, cathode layer 115 and protective layer 116 are cascading.This spaced walls 118 is arranged between anode layer 111 and the cathode layer 115, and this hole transmission layer 112, organic luminous layer 113 and electron transfer layer 114 form some pixel regions 117 at interval.
This organic electro-luminescent display 100 is under driven, and this anode layer 111 is to organic luminous layer 113 injected holes, and this cathode layer 115 injects electronics to organic luminous layer 113.The combination of meeting in this organic luminous layer 113 of injected holes and electronics makes electronics take place and can step move, and falls back ground state by excitation state, thereby gives off energy with form of light waves.
Yet the light beam that this organic luminous layer 113 sends is not limited to propagate toward both direction up and down, and to around disperse, wherein the side direction light beam will by around spaced walls 118 absorptions and lose, so the light extraction efficiency of this organic electro-luminescent display 100 is lower.
[summary of the invention]
For overcoming the low problem of prior art organic electro-luminescent display light extraction efficiency, be necessary the organic electro-luminescent display that provides a kind of light extraction efficiency high.
A kind of organic electro-luminescent display, it comprises a substrate, one first electrode, an organic luminous layer, one second electrode and spaced walls, wherein this substrate, first electrode, organic luminous layer and the second electrode lay are folded is provided with, this spaced walls this organic luminous layer at interval forms some pixel regions, and this spaced walls inside is provided with reflective particle.
Be different from prior art, the side direction light beam of this organic luminous layer of reflective particle energy usable reflection of organic electro-luminescent display spaced walls of the present invention inside, convection light improves the light extraction efficiency of organic electro-luminescent display in light direction.In addition, because this reflective particle is to refer and synthesize in advance among insulating material, on anode layer, be coated with together again and form spaced walls, so processing procedure is simple.
[description of drawings]
Fig. 1 is a kind of structural representation of prior art organic electro-luminescent display.
Fig. 2 is the structural representation of organic electro-luminescent display one better embodiment of the present invention.
Fig. 3 is the structural representation of Fig. 2 intermediate bulkheads.
Fig. 4 is the light path schematic diagram of the reflective particle reflection organic luminous layer side direction light beam of this spaced walls.
[embodiment]
Seeing also Fig. 2, is the structural representation of organic electro-luminescent display one better embodiment of the present invention.This organic electro-luminescent display 200 comprises a substrate 210, an anode layer 211, a hole transmission layer 212, an organic luminous layer 213, an electron transfer layer 214, a cathode layer 215, a protective layer 216 and a spaced walls 218.This substrate 210, anode layer 211, hole transmission layer 212, organic luminous layer 213, electron transfer layer 214, cathode layer 215 and protective layer 216 stack gradually and form a viewing area.This spaced walls 218 is arranged between anode layer 211 and the cathode layer 215, and this hole transmission layer 212, organic luminous layer 213 and electron transfer layer 214 form some pixel regions 217 at interval.
Please consult Fig. 3 simultaneously, it is the structural representation of Fig. 2 intermediate bulkheads 218.This spaced walls 218 is matrix pattern and distributes, and each pixel region 217 of interval.This spaced walls 218 is insulating material polyimides, and inside has the reflective particle 219 that is evenly distributed.This reflective particle 219 is metallic aluminium powders, and its size is even, and particle diameter is the micron number magnitude.This reflective particle 219 disperses to be formed in the spaced walls 218, and its quantity is exceeded not destroy insulating properties.
This organic electro-luminescent display 200 is under driven, and anode layer 211 is to organic luminous layer 213 injected holes, and this cathode layer 215 injects electronics to organic luminous layer 213.The combination of meeting in organic luminous layer 213 of injected holes and electronics makes electronics take place and can step move, and falls back ground state by excitation state, thereby gives off energy with form of light waves.
In the present embodiment, the reflective particle 219 of this spaced walls 218 is metallic aluminium powders, and it has high reflectance.Seeing also Fig. 4, is the light path schematic diagram of the reflective particle 219 reflection organic luminous layers 213 side direction light beams of this spaced walls 218.The side direction light beam of this reflective particle 219 reflection organic luminous layers 213 makes beam deflection and is folded to the light direction of organic luminous layer 213, thereby this side direction light beam is utilized once more.Therefore increase the light beam of organic electro-luminescent display 200 light directions, improve organic electro-luminescent display 200 light extraction efficiencies, and the therefore operating voltage of corresponding reduction organic electro-luminescent display 200, component life prolonged.
In the manufacture process,, make this insulating material have reflectivity properties in addition because this reflective particle 219 is evenly to be blended in the insulating material in advance.Again this insulating material is coated on the anode layer 211, and etching forms the spaced walls 218 with matrix pattern, so processing procedure is simple.
Present embodiment also can be done following variation, promptly this reflective particle 219 is not limited to aluminium powder, can be other metallic, as iron powder, copper powder, bronze, silver powder, chromium powder and magnesium powder, or the mixing of multiple metal powder arbitrary proportion, as long as it does not destroy the insulating properties of this spaced walls 218.In addition, this reflective particle 219 also can be not limited to metallic, and it can be inorganic salt particle or is the organic molecule particle, as long as it has reflectivity, also can be graphite powder, plastic pellet as this reflective particle 219.And the particle diameter of this reflective particle 219 also is not limited to micron grade, and its particle diameter is more little, and its reflection is even more.
Claims (10)
1. organic electro-luminescent display, it comprises a substrate, one first electrode, an organic luminous layer, one second electrode and spaced walls, wherein this substrate, first electrode, organic luminous layer and the second electrode lay are folded is provided with, this spaced walls this organic luminous layer at interval forms some pixel regions, and it is characterized in that: this spaced walls inside is provided with reflective particle.
2. organic electro-luminescent display as claimed in claim 1 is characterized in that: this reflective particle evenly distributes in this spaced walls.
3. organic electro-luminescent display as claimed in claim 2 is characterized in that: this reflective particle size evenly.
4. organic electro-luminescent display as claimed in claim 3 is characterized in that: the particle diameter of this reflective particle is the micron number magnitude.
5. organic electro-luminescent display as claimed in claim 1 is characterized in that: this reflective particle is a metallic.
6. organic electro-luminescent display as claimed in claim 5 is characterized in that: this metallic is one of aluminium powder, iron powder, copper powder, magnesium powder, bronze, silver powder or chromium powder.
7. organic electro-luminescent display as claimed in claim 5 is characterized in that: this metallic is the mixing of aluminium powder, iron powder, copper powder, magnesium powder, bronze, silver powder and chromium powder.
8. organic electro-luminescent display as claimed in claim 1 is characterized in that: this reflective particle is the inorganic molecules particle.
9. organic electro-luminescent display as claimed in claim 1 is characterized in that: this reflective particle is a graphite powder.
10. organic electro-luminescent display as claimed in claim 1 is characterized in that: this spaced walls is matrix pattern and distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101750 CN1971933A (en) | 2005-11-24 | 2005-11-24 | Organic electroluminescence display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101750 CN1971933A (en) | 2005-11-24 | 2005-11-24 | Organic electroluminescence display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971933A true CN1971933A (en) | 2007-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510101750 Pending CN1971933A (en) | 2005-11-24 | 2005-11-24 | Organic electroluminescence display device |
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| CN (1) | CN1971933A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490018A (en) * | 2013-09-25 | 2014-01-01 | 京东方科技集团股份有限公司 | Organic electroluminescence device and manufacturing method thereof |
| CN103582201A (en) * | 2012-08-08 | 2014-02-12 | 群康科技(深圳)有限公司 | Color-conversion film |
| US9484553B2 (en) | 2013-09-25 | 2016-11-01 | Boe Technology Group Co., Ltd. | Organic light-emitting diode device and manufacturing method thereof |
| CN113380966A (en) * | 2021-06-08 | 2021-09-10 | 安徽熙泰智能科技有限公司 | OLED device structure and preparation method thereof |
-
2005
- 2005-11-24 CN CN 200510101750 patent/CN1971933A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582201A (en) * | 2012-08-08 | 2014-02-12 | 群康科技(深圳)有限公司 | Color-conversion film |
| CN103582201B (en) * | 2012-08-08 | 2016-04-06 | 群康科技(深圳)有限公司 | Look conversion film |
| CN103490018A (en) * | 2013-09-25 | 2014-01-01 | 京东方科技集团股份有限公司 | Organic electroluminescence device and manufacturing method thereof |
| CN103490018B (en) * | 2013-09-25 | 2016-03-09 | 京东方科技集团股份有限公司 | Organic electroluminescence device and preparation method thereof |
| US9484553B2 (en) | 2013-09-25 | 2016-11-01 | Boe Technology Group Co., Ltd. | Organic light-emitting diode device and manufacturing method thereof |
| CN113380966A (en) * | 2021-06-08 | 2021-09-10 | 安徽熙泰智能科技有限公司 | OLED device structure and preparation method thereof |
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