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 |