发明名称 Carbazole derivative, and light emitting element and light emitting device using the carbazole derivative
摘要 It is an object of the present invention to provide a material which is excellent in a hole injecting property and a hole transporting property, and to provide a light emitting element and a light emitting device using a material which is excellent in a hole injecting property and a hole transporting property. The present invention provides a carbazole derivative represented by a general formula (1). The carbazole derivative according to the present invention is excellent in the hole injecting property. By using the carbazole derivative according to the present invention as a hole injecting material for a hole injecting layer of a light emitting element, a driving voltage can be reduced. In addition, a lower driving voltage, improvement of the luminous efficiency, a longer life time, and higher reliability can be realized by applying the material to a light emitting element or a light emitting device.
申请公布号 US8900728(B2) 申请公布日期 2014.12.02
申请号 US201313865363 申请日期 2013.04.18
申请人 Semiconductor Energy Laboratory Co., Ltd. 发明人 Nakashima Harue;Kawakami Sachiko;Kumaki Daisuke
分类号 H01L51/54;C07D401/12;C07D401/14;H01L51/50;C07D409/14;C09K11/06;C07D417/12;H01L51/00;C07D209/88;C07D417/14;C07D409/12 主分类号 H01L51/54
代理机构 Robinson Intellectual Property Law Office, P.C. 代理人 Robinson Eric J.;Robinson Intellectual Property Law Office, P.C.
主权项 1. A compound represented by formula (56),
地址 Atsugi-shi, Kanagawa-ken JP