Organic electro luminescence device and its prepn. method |
Title： |
| Organic electro luminescence device and its prepn. method |
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Application Number： |
200310113793 |
Application Date： |
2003/11/26 |
Announcement Date： |
2004/08/11 |
Pub. Date： |
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Publication Number： |
1520238 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H05B 33/10H05B 33/14H05B 33/22 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Shao Yuxuan, Qiu Yong |
Key Words： |
Organic, electro luminescence, device, preparation method |
Abstract： |
In the invention, isolation column in double layer is prepared on graphics of first electrode. Cross section of lines on the second layer in the isolation column possesses shape of big in top and small in bottom, and its bevel edge possesses two adductive angle alpha, beta, and alpha£¾beta. Then, organic functional layer and second electrode are deposited in sequence. Angle beta on bevel edge increases tolerance for angle and width of coating by vaporization of metal back electrode. Different angles of coating by vaporization realize full covering organic functional layer, which is easier eroded by water and oxygen then electrode, by the back electrode so as to prevent organic functional layer from exposing out of the back electrode. The isolation column is prepared through twice coating organic thin films, twice exposures and one time of hot setting. The invention raises service time and even luminescence of parts. |
Claim： |
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Priority： |
CN 2003-6-23 03137435.2 |
PCT： |
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LegalStatus： |
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