Preparation method of organic electroluminescent device
Title:
Preparation method of organic electroluminescent device
Application Number:
01115519
Application Date:
2001/04/27
Announcement Date:
2002/01/02
Pub. Date:
Publication Number:
1329458
Announcement Number:
1141859
Grant Date:
Granted Pub. Date:
2004-3-10
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
H05B 33/10
Applicant(s):
Qinghua Univ.
Inventor(s):
Qiu Yong, Li Jing, Shao Yuxuan
Key Words:
Preparation method, organic electroluminescent device
Abstract:
The present invention designs a preparation method of organic electroluminescent device, and is characterized by that on the first electrode pattern of the said device the invented trapezoidal insulating columns (isolating columns) with large upper end and small lower end are prepared, then the organic layer and metal layer are vapour-deposited in turn, and the shadow effect of the insualting columns can effectively partition the second electrode of the said device. This inverted trapezoidal insulating column can be prepared by means of the procedures of rotatively coating insulating polymer film twice, one exposure and developing twice. This invented method is simple in preparation process, low in cost and high in finished product ratio.
Claim:
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PCT:
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