| 发明名称 |
Organic electroluminescent element |
| 摘要 |
The invention relates to the improvement of phosphorescent organic electroluminescent devices, by the use of materials of formulas (1) to (4), as indicated in diagram 1, in the hole blocking layer.
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| 申请公布号 |
US7981522(B2) |
申请公布日期 |
2011.07.19 |
| 申请号 |
US20040581005 |
申请日期 |
2004.11.24 |
| 申请人 |
MERCK PATENT GMBH |
发明人 |
VESTWEBER HORST;GERHARD ANJA;STOEΒEL PHILIPP |
| 分类号 |
H01L51/54;C07F15/00;C08G61/12;C09K11/06;H01L51/00;H01L51/30;H01L51/50;H05B33/14 |
主分类号 |
H01L51/54 |
| 代理机构 |
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代理人 |
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| 地址 |
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