发明名称 |
Electroluminescent composition without initial drop of efficiency |
摘要 |
The invention relates to an electroluminescent composition comprising an electroluminescent material containing an aryl vinylene and an additive for suppressing a drop in the initial efficiency of light emission observed when the electroluminescent material is used as such in an electroluminescent device. The invention further relates to an electroluminescent composition comprising an electroluminescent material containing an aryl vinylene and an additive, wherein the additive comprises an oligo ring structure with at least four carbonyl groups and to an electroluminescent device comprising the composition according to the invention.
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申请公布号 |
US2007164256(A1) |
申请公布日期 |
2007.07.19 |
申请号 |
US20050598558 |
申请日期 |
2005.03.02 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS, N.V. |
发明人 |
VULTO SIMONE I.E.;MEULENKAMP ERIC A.;VAN DE WEIJER PETER;DE KOK-VAN BREEMEN MARGARETHA M.;BUECHEL MICHAEL |
分类号 |
C09K11/06;H01L51/00;H01L51/30;H01L51/50;H01L51/54;H05B33/14 |
主分类号 |
C09K11/06 |
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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