发明授权
- 专利标题： Organic electroluminescent element, illuminator and display
- 专利标题（中）： 有机电致发光元件，照明器和显示器
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申请号： US12082251申请日： 2008-04-10
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公开(公告)号： US07862909B2公开(公告)日： 2011-01-04
- 发明人: Tomohiro Oshiyama , Hiroshi Kita , Eisaku Katoh
- 申请人： Tomohiro Oshiyama , Hiroshi Kita , Eisaku Katoh
- 申请人地址： JP Tokyo
- 专利权人： Konica Minolta Holdings, Inc.
- 当前专利权人： Konica Minolta Holdings, Inc.
- 当前专利权人地址： JP Tokyo
- 代理机构： Holtz, Holtz, Goodman & Chick, P.C.
- 优先权： JP2003-193519 20030708
- 主分类号： H01L51/54
- IPC分类号： H01L51/54 ; C09K11/00
摘要：
An organic electroluminescent element comprising an anode and a cathode having therebetween an emission layer containing a phosphorescent compound and an layer adjacent to the emission layer, the layer adjacent to the emission layer being provided between the emission layer and the cathode, wherein the layer adjacent to the emission layer comprises a compound having an electron withdrawing group; and the compound exhibits a HOMO level of −5.7 to −7.0 eV and a LUMO level of −1.3 to −2.3 eV.
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