发明公开
- 专利标题: ORGANIC ELECTROLUMINESCENT ELEMENT
- 专利标题(中): 有机电致发光元件
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申请号: EP11747125.0申请日: 2011-01-27
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公开(公告)号: EP2541635A1公开(公告)日: 2013-01-02
- 发明人: TADA Masashi , OGAWA Junya , KAI Takahiro , MATSUMOTO Megumi , TSUTSUMI Yasuhisa
- 申请人: Nippon Steel Chemical Co., Ltd.
- 申请人地址: 14-1, Sotokanda 4-chome Chiyoda-ku Tokyo 101-0021 JP
- 专利权人: Nippon Steel Chemical Co., Ltd.
- 当前专利权人: Nippon Steel Chemical Co., Ltd.
- 当前专利权人地址: 14-1, Sotokanda 4-chome Chiyoda-ku Tokyo 101-0021 JP
- 代理机构: Vossius & Partner
- 优先权: JP2010042295 20100226
- 国际公布: WO2011105161 20110901
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; C07D209/86 ; C07D401/14 ; C07D403/14 ; C07D405/14 ; C07D409/14 ; C09K11/06
摘要:
Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. This organic EL device comprises organic layers between an anode and a cathode piled one upon another on a substrate and at least one organic layer selected from a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by the following formula (1). In the case where the light-emitting layer of the organic electroluminescent device contains a phosphorescent dopant and a host material, it is the carbazole compound that is contained as the host material. In formula (1), X is C-Y or a nitrogen atom; Y is a hydrogen atom, an alkyl group, a cycloalkyl group, or an aromatic group; n is an integer of 2 to 4: A is an n-valent aromatic group; L is a direct bond or a divalent aromatic group; and R is a hydrogen atom, an alkyl group, or a cycloalkyl group.
公开/授权文献
- EP2541635B1 ORGANIC ELECTROLUMINESCENT ELEMENT 公开/授权日:2018-12-12
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