CN201243391Y - Organic electroluminescent display - Google Patents
Organic electroluminescent display Download PDFInfo
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- CN201243391Y CN201243391Y CNU2008200295027U CN200820029502U CN201243391Y CN 201243391 Y CN201243391 Y CN 201243391Y CN U2008200295027 U CNU2008200295027 U CN U2008200295027U CN 200820029502 U CN200820029502 U CN 200820029502U CN 201243391 Y CN201243391 Y CN 201243391Y
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- negative electrode
- organic electroluminescent
- electroluminescent display
- composition metal
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Abstract
An organic electroluminescent display device comprises a glass baseplate, and an ITO conduction layer, a hole transport layer, a luminous layer, an electronic transport layer and a composite metal cathode, which are arranged on the upper surface of the glass baseplate from bottom to top. A tellurium film enclosing layer is arranged on the composite metal cathode. A dense tellurium film coating, not easy to oxidize, is arranged through vapor deposition on the outer surface of the metal cathode of the organic electroluminescent display device, so the cathode and the organic layer of the device can be effectively protected, thereby remarkably improving the service life of the device.
Description
Technical field
The utility model relates to a kind of light-emitting display device, is specifically related to a kind of display of organic electroluminescence.
Background technology
From traditional black and white, colour, super flat, flat CRT display, the LCD that yields unusually brilliant results by now, PDP flat-panel screens, function such as that the monitor market is emphasized more is frivolous, high image quality, hommization.Organic light emitting display (OLED) receives much attention as display of future generation, advantages such as O LED has gently, approaches, high brightness, response fast, high definition, low-voltage, high efficiency and low cost, and display devices such as CRT, LCD, LED fully can match in excellence or beauty.As full curing display device, the prime advantage of OLED is can combine with the plastic crystal Manifold technology to realize flexible demonstration, and application prospect is very tempting.
The life-span of OLED device is decided by selected organic material on the one hand, also depends on the encapsulation of device on the other hand; Because negative electrode and organic material are very unstable, if the OLED device package is bad, negative electrode and organic material will react with gases such as water vapour in the vacuum chamber, oxygen, are easy to and will lose efficacy, cause whole OLED to reduce device lifetime, so just limited the process of OLED device industrialization.Thereby; for degeneration and the inefficacy of OLED in the long-term work process is inhibited; steady operation reaches enough life-spans; barrier to encapsulating material has proposed high requirement; the encapsulating material that plays the seal protection effect has just become to solve a break-through point of OLED problem device lifetime; dependence is to the high barrier of oxygen and steam, guarantee OLED preserve and use in reliability, be one prolong stability and life-span must be through approach.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of existing encapsulation technology and material; a kind of erosion that can reduce water, oxygen etc. for device is provided; formation is to effective protection of device cathodes, organic material, thereby significantly improves the organic elctroluminescent device in the life-span of device.
For achieving the above object, the technical solution adopted in the utility model is: the ITO conductive layer, hole transmission layer, luminescent layer, electron transfer layer and the composition metal negative electrode that comprise glass substrate and be successively set on the glass substrate upper surface from bottom to top, said composition metal negative electrode is provided with the tellurium thin films encapsulated layer.
ITO conductive layer of the present utility model links to each other with the positive and negative electrode of DC power supply respectively with the composition metal negative electrode; The tellurium thin films encapsulated layer adopts the vacuum vapour deposition evaporation on metallic cathode.
The utility model prepares one deck densification in the outside of metallic cathode, is difficult for the tellurium thin films encapsulated layer of oxidation by the vacuum deposition method under the high vacuum condition; realization is to the encapsulation of device; reduce the erosion for device such as water, oxygen; formation is to effective protection of device cathodes, organic material; thereby significantly improve the life-span of device; and realize the simplification of device packaging technique, realize thin, lightization of device, but crimpiness.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to Fig. 1, the utility model comprises glass substrate 6 and is successively set on the ITO conductive layer 5 of glass substrate 6 upper surfaces, hole transmission layer 4, luminescent layer 3, electron transfer layer 2 and composition metal negative electrode 1 from bottom to top, direct evaporation tellurium thin films encapsulated layer 7 on the composition metal negative electrode.ITO conductive layer 5 links to each other with the positive and negative electrode of direct voltage respectively with composition metal negative electrode 1.
The utility model is from improving the barrier of organic elctroluminescent device encapsulating material, prolonging OLED sets out device lifetime, by after finishing each functional layer evaporation, original position evaporation tellurium thin films encapsulated layer on the metallic cathode in vacuum chamber, not only simplified production technology, in the more effective life-span that prolongs the OLED device, realize the adagio display device.The encapsulation process of this tellurium thin films is finished under high vacuum condition, has effectively overcome ectocine, and the negative electrode of device and luminescent layer are effectively protected; Thereby significantly improve the life-span of device, and realize encapsulation, reduce the erosion for device such as water, oxygen device.
Claims (3)
1, a kind of organic elctroluminescent device, it is characterized in that: the ITO conductive layer (5), hole transmission layer (4), luminescent layer (3), electron transfer layer (2) and the composition metal negative electrode (1) that comprise glass substrate (6) and be successively set on glass substrate (6) upper surface from bottom to top, said composition metal negative electrode (1) is provided with tellurium thin films encapsulated layer (7).
2, organic elctroluminescent device according to claim 1 is characterized in that: said ITO conductive layer (5) links to each other with the positive and negative electrode of DC power supply respectively with composition metal negative electrode (1).
3, organic elctroluminescent device according to claim 1 is characterized in that: said tellurium thin films encapsulated layer (7) adopts the vacuum vapour deposition evaporation on metallic cathode (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200295027U CN201243391Y (en) | 2008-06-30 | 2008-06-30 | Organic electroluminescent display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200295027U CN201243391Y (en) | 2008-06-30 | 2008-06-30 | Organic electroluminescent display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201243391Y true CN201243391Y (en) | 2009-05-20 |
Family
ID=40716684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200295027U Expired - Fee Related CN201243391Y (en) | 2008-06-30 | 2008-06-30 | Organic electroluminescent display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201243391Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724822B (en) * | 2009-12-17 | 2011-07-20 | 中国航天科技集团公司第五研究院第五一○研究所 | Method for preparing conductive composite atomic oxygen protective coating ITO/MgF2 |
| CN103904248A (en) * | 2012-12-25 | 2014-07-02 | 海洋王照明科技股份有限公司 | Organic electroluminescent device and preparing method thereof |
| CN104037335A (en) * | 2013-03-07 | 2014-09-10 | 海洋王照明科技股份有限公司 | Organic light emission diode and preparation method thereof |
| CN104078609A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Organic light-emitting diode device and packaging method thereof |
| CN104103769A (en) * | 2013-04-09 | 2014-10-15 | 海洋王照明科技股份有限公司 | Organic light-emitting display and manufacturing method thereof |
| CN104103770A (en) * | 2013-04-09 | 2014-10-15 | 海洋王照明科技股份有限公司 | Organic light-emitting display and manufacturing method thereof |
-
2008
- 2008-06-30 CN CNU2008200295027U patent/CN201243391Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724822B (en) * | 2009-12-17 | 2011-07-20 | 中国航天科技集团公司第五研究院第五一○研究所 | Method for preparing conductive composite atomic oxygen protective coating ITO/MgF2 |
| CN103904248A (en) * | 2012-12-25 | 2014-07-02 | 海洋王照明科技股份有限公司 | Organic electroluminescent device and preparing method thereof |
| CN104037335A (en) * | 2013-03-07 | 2014-09-10 | 海洋王照明科技股份有限公司 | Organic light emission diode and preparation method thereof |
| CN104078609A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Organic light-emitting diode device and packaging method thereof |
| CN104103769A (en) * | 2013-04-09 | 2014-10-15 | 海洋王照明科技股份有限公司 | Organic light-emitting display and manufacturing method thereof |
| CN104103770A (en) * | 2013-04-09 | 2014-10-15 | 海洋王照明科技股份有限公司 | Organic light-emitting display and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 |