发明名称 |
Electroluminescence element and a light emitting device using the same |
摘要 |
An EL element which is thicker and lower-voltage drive without doping acceptor or donor than the conventional one. An EL element in which an electroluminescent film 103 containing an organic compound which can provide electroluminescent, a floating electrode 104, an electron transport supporting layer 105 and a cathode 102 are in order laminated on an anode 101. A film thickness of the electroluminescent film 103 is on the order of a conventional film thickness (on the order of approximately 100 nm), and the electron transport supporting layer 105 may also have a film thickness on the order of the electroluminescent film 103. The EL element can be driven at lower voltage than the conventional one by introducing a hole blocking material into an electron transport supporting layer.
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申请公布号 |
US2004027061(A1) |
申请公布日期 |
2004.02.12 |
申请号 |
US20030635959 |
申请日期 |
2003.08.07 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
SEO SATOSHI;YAMAZAKI HIROKO |
分类号 |
H05B33/26;H01L27/32;H01L51/00;H01L51/30;H01L51/50;H01L51/52;(IPC1-7):H01J1/62 |
主分类号 |
H05B33/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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