发明申请
- 专利标题: ORGANIC ELECTROLUMINESCENT DEVICE
- 专利标题(中): 有机电致发光器件
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申请号: US12991301申请日: 2009-04-30
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公开(公告)号: US20110062862A1公开(公告)日: 2011-03-17
- 发明人: Toshihiro Yamamoto , Takahiro Kai , Masaki Komori , Taishi Tsuji , Yasuhiro Takahashi , Toshinao Yuki , Yusuke Nakajima , Tomoaki Hoshi , Jiro Asaka
- 申请人: Toshihiro Yamamoto , Takahiro Kai , Masaki Komori , Taishi Tsuji , Yasuhiro Takahashi , Toshinao Yuki , Yusuke Nakajima , Tomoaki Hoshi , Jiro Asaka
- 优先权: JP2008-122052 20080508; JP2008-122053 20080508
- 国际申请: PCT/JP2009/058526 WO 20090430
- 主分类号: H01J1/62
- IPC分类号: H01J1/62
摘要:
Disclosed is an organic electroluminescent device (organic EL device) that is improved in the luminous efficiency, fully secured of the driving stability, and of a simple structure. The organic EL device comprises a light-emitting layer between an anode and a cathode piled one upon another on a substrate and the said light-emitting layer comprises (A) a phosphorescent dopant whose emission peak wavelength is longer than 600 nm and (B) a host material. The host material contains at least two kinds of compounds selected from two or more kinds of derivatives included in (b1) N-substituted indolocarbazole derivatives, (b2) derivatives of 8-hydroxyquinoline aluminum complex, and (b3) bisindolocarbazole derivatives.
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