发明名称 |
Organic electroluminescent device |
摘要 |
An organic electroluminescent device including a pair of electrodes and at least one organic compound layer including a luminescent layer between the pair of electrodes, in which the luminescent layer contains at least one host material and at least one phosphorescent material, and the concentration of the phosphorescent material changes periodically in the depth direction of the luminescent layer.
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申请公布号 |
US2005238918(A1) |
申请公布日期 |
2005.10.27 |
申请号 |
US20050109804 |
申请日期 |
2005.04.20 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
IGARASHI TATSUYA |
分类号 |
H01L51/50;C09K11/06;H01L51/00;H05B33/14;(IPC1-7):H05B33/14 |
主分类号 |
H01L51/50 |
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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