发明授权
- 专利标题: Carbazole derivative, and light emitting element and light emitting device using the carbazole derivative
- 专利标题(中): 咔唑衍生物,发光元件和使用咔唑衍生物的发光元件
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申请号: US10583028申请日: 2005-10-14
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公开(公告)号: US07901791B2公开(公告)日: 2011-03-08
- 发明人: Harue Nakashima , Sachiko Kawakami , Daisuke Kumaki
- 申请人: Harue Nakashima , Sachiko Kawakami , Daisuke Kumaki
- 申请人地址: JP Atsugi-shi, Kanagawa-ken
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址: JP Atsugi-shi, Kanagawa-ken
- 代理机构: Robinson Intellectual Property Law Office, P.C.
- 代理商 Eric J. Robinson
- 优先权: JP2004-304225 20041019; JP2004-333344 20041117; JP2005-084533 20050323
- 国际申请: PCT/JP2005/019349 WO 20051014
- 国际公布: WO2006/043647 WO 20060427
- 主分类号: H01J1/62
- IPC分类号: H01J1/62
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 carbazol derivative represented by a general formula (1). The carbazol derivative according to the present invention is excellent in the hole injecting property. By using the carbazol 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.
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