发明授权
US08475938B2 Organic electroluminescent element, lighting device and display device
有权
有机电致发光元件,照明装置和显示装置
- 专利标题: Organic electroluminescent element, lighting device and display device
- 专利标题(中): 有机电致发光元件,照明装置和显示装置
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申请号: US12934970申请日: 2009-04-07
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公开(公告)号: US08475938B2公开(公告)日: 2013-07-02
- 发明人: Noriko Yasukawa , Rie Katakura , Hideo Taka
- 申请人: Noriko Yasukawa , Rie Katakura , Hideo Taka
- 申请人地址: JP Chiyoda-Ku
- 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 Chiyoda-Ku
- 代理机构: Lucas & Mercanti, LLP
- 优先权: JP2008118285 20080430
- 国际申请: PCT/JP2009/057109 WO 20090407
- 国际公布: WO2009/133753 WO 20091105
- 主分类号: H01L51/54
- IPC分类号: H01L51/54 ; C09K11/00
摘要:
Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound.In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.
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