CN2710303Y - Organic film electroluminescent device - Google Patents
Organic film electroluminescent device Download PDFInfo
- Publication number
- CN2710303Y CN2710303Y CN 200420009183 CN200420009183U CN2710303Y CN 2710303 Y CN2710303 Y CN 2710303Y CN 200420009183 CN200420009183 CN 200420009183 CN 200420009183 U CN200420009183 U CN 200420009183U CN 2710303 Y CN2710303 Y CN 2710303Y
- Authority
- CN
- China
- Prior art keywords
- layer
- organic
- electroluminescent device
- thin film
- broad stopband
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
Disclosed is an organic film electroluminescent device, which relates to information display device, comprising a transparent electrode (1), a hole transport layer (2), an organic luminescent layer (4), an electronic potentiometric compensator layer (5) and a back electrode (6). The utility model is characterized in that an insulation layer (3) is added between the hole transport layer (2) and the organic luminescent layer (4). The insulation layer (3) adopts large energy gap inorganic material, large energy gap organic material or large energy gap polymeric material with the thickness of the insulation layer of 0. 2nm-5nm. The structure can improve the mutual diffusion between the luminescent layer and the hole transport layer of the organic electroluminescent device, strengthen the balance between the injected holes and the injected electrons and improve the lightness of the light emitting, the light emitting efficiency and the service life of the organic electroluminescence device.
Description
Technical field
The utility model relates to a kind of electroluminescent device of organic thin film, is mainly used in generation high brightness and efficient, long-life electroluminescent device of organic thin film.
Background technology
Since the people such as Deng Qingyun C.W.Tang of Kodak in 1987 had reported the micromolecule organic electroluminescent of high efficiency and brightness, organic electroluminescence device developed into the application stage in the short more than ten years.Yet high brightness, long-life and high efficiency organic electroluminescence device are that people dream of always.
Show that in recent years developing rapidly of industry shows, solid plate shows and comprises: it is beyond dispute fact that organic electroluminescent device OLED, LCDs LCD, plasma panel PDP, vacuum fluorescent display VFD, field emission display FED etc. will replace traditional cathode-ray tube CRT; And OLED is outstanding person new in the flat-panel display device family.Japanese several years ago first peak company buys patent and is prepared into matrix panel from Kodak, and in listing in 98 years, with releasing the colour matrix screen year end again.PHILIPS Co. has utilized polymer manufacture more satisfactory organic electroluminescence device.Motorola Inc. is used for mobile phone to the OLED display device at the beginning of 2000, and the end of the year, LG company also determined this project, and in calendar year 2001 12000000 OLED displays is used for mobile phone.China maximum picture tube producer---Caihong Co drops into more than 3,000 ten thousand RMB in Tsing-Hua University and develops OLED, development centre, company of China Aerospace Machinery and Electronics Corporation PVG and Shanghai vacuum electronic group company are also at the investment partner's joint research exploitation OLED that seeks respectively aspect the scientific research department.
Though the organic electroluminescence device development is very fast, but in order to obtain high efficiency, high brightness and long-life organic electroluminescence device, people well do not solve some problems in the organic electroluminescent, as restriction owing to present hole and electric transmission layer material and preparation technology, the structure of existing organic electroluminescence device: there is the following problem in ITO/ hole transmission layer/organic luminous layer/electron potential layer of compensation/back electrode: the counterdiffusion of luminescent layer and hole transmission layer; Hole and electron transfer layer do not have sufficiently high hole and electron mobility, and injected holes and the not enough balance of injected electrons etc.These problems have limited the further improvement of organic electroluminescence device.
Summary of the invention
Technical problem to be solved in the utility model: the structure to electroluminescent device of organic thin film is improved, thereby effectively improves brightness, efficient and the efficient of electroluminescent device of organic thin film.
The technical solution of the utility model:
The utility model comprises: transparency electrode, hole transmission layer, organic luminous layer, electron potential layer of compensation and back electrode is characterized in that: add insulating barrier between hole transmission layer and organic luminous layer.
The beneficial effects of the utility model: this structure can be improved the counterdiffusion of the luminescent layer and the hole transmission layer of organic electroluminescence device greatly; Injected holes and the not enough balance of injected electrons etc. are improved luminosity, efficient and the life-span of organic electroluminescence device.
Description of drawings
The structural representation of Fig. 1 electroluminescent device of organic thin film.
Among the figure: transparency electrode 1, hole transmission layer 2, insulating barrier 3, organic luminous layer 4, electron potential layer of compensation 5 and back electrode 6.
Embodiment
With the accompanying drawing is that execution mode is further described the utility model.
Novel electroluminescent device of organic thin film comprises: transparency electrode 1, hole transmission layer 2, organic luminous layer 4, electron potential layer of compensation 5 and back electrode 6 is characterized in that: add insulating barrier 3 between hole transmission layer 2 and organic luminous layer 4.
Organic luminous layer 4 adopts organic material: 4-(dintrile methyl)-2-butyl-6-(1,1,7,7-tetramethyl Lip river of a specified duration pyridine-9-vinyl)-4H-pyrans DCJTB.Also can adopt organic material: oxine aluminium Alq
3Four-tert-butyl group perylene TBP, 9,10-two-β-naphthylene anthracene AND, two (2 methyl-oxine)-(4-xenol) aluminium BALQ, 4-(dintrile methene)-2-isopropyl-6-(1,1,7,7-tetramethyl Lip river of a specified duration pyridine-9-vinyl)-4H-pyrans DCJTI, 4-(dintrile methyl)-2-butyl-6-(1,1,7,7-tetramethyl Lip river of a specified duration pyridine-9-vinyl)-4H-pyrans DCJTB, 10-(2-[4-morpholinodithio base)-2,3,6,7-tetrahydrochysene-1,1,7,7-tetramethyl-1H, 5H, the burnt pyrans of 11H-(1)-benzo (6,7-8-i, j) quinolizine-11-ketone C545T and dimethylquinacridone DMQA.Organic luminous layer 4 also can adopt polymer: p-phenylene vinylene and derivative PPV thereof.
Electron potential layer of compensation 5 adopts lithium fluoride LiF.
Claims (3)
1. electroluminescent device of organic thin film, it comprises: transparency electrode (1), hole transmission layer (2), organic luminous layer (4), electron potential layer of compensation (5) and back electrode (6) is characterized in that: add insulating barrier (3) between hole transmission layer (2) and organic luminous layer (4).
2. multilayer electroluminescent device of organic thin film according to claim 1 is characterized in that: insulating barrier (3) adopts broad stopband inorganic material, broad stopband organic material or broad stopband polymeric material, thickness of insulating layer 0.2nm-5nm.
3. multilayer electroluminescent device of organic thin film according to claim 1 is characterized in that: the broad stopband inorganic material that insulating barrier (3) adopts: lithium fluoride LiF, zinc oxide ZnO, cobalt oxide CoO, titanium dioxide TiO
2, gallium nitride GaN, alundum (Al Al
2O
3, silicon dioxide SiO
2, barium monoxide BaO, magnesium oxide MgO, aluminium nitride AlN or tantalum pentoxide Ta
2O
5
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009183 CN2710303Y (en) | 2004-07-13 | 2004-07-13 | Organic film electroluminescent device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009183 CN2710303Y (en) | 2004-07-13 | 2004-07-13 | Organic film electroluminescent device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2710303Y true CN2710303Y (en) | 2005-07-13 |
Family
ID=34848533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420009183 Expired - Fee Related CN2710303Y (en) | 2004-07-13 | 2004-07-13 | Organic film electroluminescent device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2710303Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366127C (en) * | 2005-07-18 | 2008-01-30 | 北京交通大学 | Electroluminescent device of organic thin film |
-
2004
- 2004-07-13 CN CN 200420009183 patent/CN2710303Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366127C (en) * | 2005-07-18 | 2008-01-30 | 北京交通大学 | Electroluminescent device of organic thin film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8512876B2 (en) | Organic el device | |
| US7049741B2 (en) | Organic light emitting diode with improved light emission through substrate | |
| TW585012B (en) | Organic electroluminescence device having current injection layer between light emitting layer and cathode | |
| TWI470056B (en) | Oled device with stabilized yellow light-emitting layer | |
| JP2009182322A (en) | Organic electroluminescent device | |
| KR100474891B1 (en) | organic electroluminescent display device | |
| CN101079471B (en) | An organic EL part | |
| KR20010092369A (en) | Light-emitting device and its use | |
| CN100366127C (en) | Electroluminescent device of organic thin film | |
| CN111740020B (en) | High-efficiency long-service-life blue light device | |
| KR101777124B1 (en) | White organic light emitting device | |
| CN2710303Y (en) | Organic film electroluminescent device | |
| CN2710312Y (en) | Organic film electroluminescent device | |
| WO2015192591A1 (en) | Organic electroluminescence device and organic electroluminescence display apparatus | |
| US8384073B2 (en) | System for displaying images | |
| CN112909191B (en) | Light emitting device structure, manufacturing method thereof, display substrate and display device | |
| JP3910010B2 (en) | Organic electroluminescence device | |
| KR20070101516A (en) | The white organic emitting device and the manufacturing method thereof | |
| KR100760901B1 (en) | The White Organic Light Emitting Device | |
| CN100444428C (en) | Organic electroluminescence device with improved light-emitting efficiency | |
| CN100448051C (en) | Organic electroluminescence device | |
| CN100373656C (en) | Organic luminous display element and its producing method | |
| KR20050063659A (en) | White organic light emitting device | |
| CN1976085B (en) | Organic electroluminescent device and producing method thereof | |
| JP4171170B2 (en) | Organic electroluminescence device and display device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |