基本信息:
- 专利标题： ORGANIC ELECTROLUMINESCENT ELEMENT
- 申请号：EP11747125.0 申请日：2011-01-27
- 公开(公告)号：EP2541635B1 公开(公告)日：2018-12-12
- 发明人： TADA Masashi , OGAWA Junya , KAI Takahiro , MATSUMOTO Megumi , TSUTSUMI Yasuhisa
- 申请人： NIPPON STEEL & SUMIKIN 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 & SUMIKIN CHEMICAL CO., LTD.
- 当前专利权人： NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., JP
- 当前专利权人地址： NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., JP
- 代理机构： Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 优先权： JP2010042295 20100226
- 国际公布： WO2011105161 20110901
- 主分类号： H01L51/54
- IPC分类号： H01L51/54 ; 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:
- EP2541635A1 ORGANIC ELECTROLUMINESCENT ELEMENT 公开/授权日：2013-01-02