CN204088384U - A kind of inversion OLED structure based on flexible base, board - Google Patents
A kind of inversion OLED structure based on flexible base, board Download PDFInfo
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- CN204088384U CN204088384U CN201420461006.4U CN201420461006U CN204088384U CN 204088384 U CN204088384 U CN 204088384U CN 201420461006 U CN201420461006 U CN 201420461006U CN 204088384 U CN204088384 U CN 204088384U
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Abstract
The utility model discloses a kind of inversion OLED structure based on flexible base, board, comprise transparent flexible base, board, described flexible base, board is provided with the against short-circuit layer of the conductive polymer polymer making flexible base, board surface flattening, on described against short-circuit layer by lower and on deposit cathode thin film successively, metal-oxide film, the evaporation electron transfer layer that has N-shaped to adulterate successively from the bottom to top on described metal-oxide film, electron transfer layer, luminescent layer, hole transmission layer, hole injection layer and anode.The utility model has the advantages that: make substrate surface leveling, prevent the generation of short dot, be inverted OLED structure and there is high efficiency long service.
Description
Technical field
The utility model belongs to organic electroluminescence device field, particularly relates to a kind of inversion OLED structure based on flexible base, board.
Background technology
Research shows: when selecting the substrate of flexible substrate as OLED, during owing to selecting the substrate of flexible substrate as OLED, due to the character of substrate itself, brings a lot of problem to device and manufacturing process.(1) planarization is poor: the planarization of flexible substrate is poorer than glass substrate usually, and this does not meet surface requirements.Major part deposition technology is conformal, and the film of preparation can copy the configuration of surface of substrate, and make each layer of substrate all uneven, this can cause the short circuit of device, causes device failure; (2) fusing point is low: the fusing point of flexible substrate is very low, and the technological temperature of oled substrate is very high, so flexible substrate can be out of shape and very be melted in manufacturing process.Even if in the environment that temperature is lower, flexible substrate size is also unstable, this is produced on to the OLED of sandwich construction and accurately proper alignment brings very large difficulty; (3) life-span is short: OLED to water vapour and oxygen all more responsive, and the water of most of flexible substrate, oxygen permeability are all higher.When steam and oxygen enter into device inside, the adhesiveness between negative electrode and luminescent layer can be affected, make organic film interior generation chemical reaction.These all can cause the photoelectric characteristic of device sharply to fail, and cause device aging, inefficacy rapidly.Compared with glass substrate, plastic, to the isolation of steam and oxygen and all not ideal enough to the age inhibiting protective effect of device, cannot meet the life requirements of display continuous operation more than 1000 hours.
Utility model content
The utility model object is to provide a kind of inversion OLED structure based on flexible base, board.
The technical solution of the utility model is:
A kind of inversion OLED structure based on flexible base, board, comprise transparent flexible base, board, on described flexible base, board, spin coating has the against short-circuit layer of the conductive polymer polymer making flexible base, board surface flattening, on described against short-circuit layer by lower and on deposit cathode thin film successively, metal-oxide film, the evaporation electron transfer layer that has N-shaped to adulterate successively from the bottom to top on described metal-oxide film, electron transfer layer, luminescent layer, hole transmission layer, hole injection layer and anode.
Preferably, described against short-circuit layer is PEDOT:PSS is conductive polymer polymer, and thickness is 100-300 nm.The thickness of against short-circuit layer must ensure more than 100 nanometers, and effectively could ensure that rough surface surface, flexible base can be covered very well like this, ensure that device can not cause short circuit because of substrate roughness, this thickness enhances the stability of device.
Preferably, described cathode thin film is nano-silver thread, Graphene, thin metal layer, ITO, the one of carbon nano-tube, and thickness is 15 ~ 60nm.
Preferably, described anode is electrode film that is translucent or total reflection.
Preferably, described metal-oxide film is WO
3(tungsten oxide), MoO
3(molybdenum oxide), V
2o
5(vanadic oxide), ReO
3(rheium oxide), thickness be 1-15 nm.
Preferably, in the electron transfer layer of described N-shaped doping, n-type dopant is oxide or the nitride of Li or caesium, as LiH, Li
2cO
3, Cs
2cO
3.
Preferably, described anode is metal electrode film, transparent metal oxide film or composite anode film.
The utility model has the advantages that: make substrate surface leveling, prevent the generation of short dot, be inverted OLED structure and there is high efficiency long service.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
concrete enforcement
A kind of inversion OLED structure based on flexible base, board, the PEDOT:PSS (conductive polymer polymer) that spin coating one deck 200 nm is thick on flexible substrates, next is the Graphene of 30 nm, then be the MoO3 of 10 nm, then be the Bphen:Li of 55 nm, the evaporation order of other functional layer is followed successively by 20 nm TmPyPB electron transfer layers from bottom to top, 20 nm CBP:Ir (ppy) 3 luminescent layers, the TAPC hole transmission layer of 40 nm, 10 nm HAT-CN hole injection layers, 100 nm aluminum metal anodes.
PEDOT:PSS of the present utility model (conductive polymer polymer) makes substrate surface leveling, prevents the generation of short dot, is inverted OLED structure and has high efficiency long service.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalent transformations of doing according to the Spirit Essence of the utility model main technical schemes or modification, all should be encompassed within protection range of the present utility model.
Claims (6)
1. the inversion OLED structure based on flexible base, board, it is characterized in that: comprise transparent flexible base, board, described flexible base, board is provided with the against short-circuit layer of the conductive polymer polymer making flexible base, board surface flattening, on described against short-circuit layer by lower and on deposit cathode thin film successively, metal-oxide film, the evaporation electron transfer layer that has N-shaped to adulterate successively from the bottom to top on described metal-oxide film, electron transfer layer, luminescent layer, hole transmission layer, hole injection layer and anode.
2. a kind of inversion OLED structure based on flexible base, board according to claim 1, is characterized in that: described against short-circuit layer thickness is 100-300 nm.
3. a kind of inversion OLED structure based on flexible base, board according to claim 1, is characterized in that: described cathode thin film is thickness is 15 ~ 60nm.
4. a kind of inversion OLED structure based on flexible base, board according to claim 1, is characterized in that: the thickness of described metal-oxide film is 1-15 nm.
5. a kind of inversion OLED structure based on flexible base, board according to claim 1, is characterized in that: described anode is electrode film that is translucent or total reflection.
6. a kind of inversion OLED structure based on flexible base, board according to claim 1, is characterized in that: described anode is metal electrode film, transparent metal oxide film or composite anode film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461006.4U CN204088384U (en) | 2014-08-15 | 2014-08-15 | A kind of inversion OLED structure based on flexible base, board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461006.4U CN204088384U (en) | 2014-08-15 | 2014-08-15 | A kind of inversion OLED structure based on flexible base, board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088384U true CN204088384U (en) | 2015-01-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420461006.4U Active CN204088384U (en) | 2014-08-15 | 2014-08-15 | A kind of inversion OLED structure based on flexible base, board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600202A (en) * | 2015-02-05 | 2015-05-06 | 苏州大学 | Invertedly-arranged OLED (organic light emitting diode) device structure |
| CN107040622A (en) * | 2017-04-12 | 2017-08-11 | 黄晓咏 | A kind of communication terminal with OLED display screen |
| CN107623074A (en) * | 2017-09-18 | 2018-01-23 | 深圳市华星光电半导体显示技术有限公司 | A kind of OLED and the method for preparing the liquid material to be sprayed for the device |
-
2014
- 2014-08-15 CN CN201420461006.4U patent/CN204088384U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600202A (en) * | 2015-02-05 | 2015-05-06 | 苏州大学 | Invertedly-arranged OLED (organic light emitting diode) device structure |
| CN107040622A (en) * | 2017-04-12 | 2017-08-11 | 黄晓咏 | A kind of communication terminal with OLED display screen |
| CN107623074A (en) * | 2017-09-18 | 2018-01-23 | 深圳市华星光电半导体显示技术有限公司 | A kind of OLED and the method for preparing the liquid material to be sprayed for the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215125 Room 102, A4 Building, 218 Xinghu Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Suzhou Fang Sheng Au Optronics Co Address before: 215000 A4-102, 218 Xinghu Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: Suzhou Fangsheng Optoelectronics Equipment & Technology Co., Ltd. |