- 专利标题: Light emitting element and light emitting device
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申请号: US10584308申请日: 2005-11-28
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公开(公告)号: US09142783B2公开(公告)日: 2015-09-22
- 发明人: Harue Nakashima , Sachiko Kawakami , Daisuke Kumaki , Satoshi Seo , Hisao Ikeda , Junichiro Sakata , Yuji Iwaki
- 申请人: Harue Nakashima , Sachiko Kawakami , Daisuke Kumaki , Satoshi Seo , Hisao Ikeda , Junichiro Sakata , Yuji Iwaki
- 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: JP2004-347518 20041130; JP2005-084566 20050323
- 国际申请: PCT/JP2005/022240 WO 20051128
- 国际公布: WO2006/059745 WO 20060608
- 主分类号: H01J1/63
- IPC分类号: H01J1/63 ; H01L51/00 ; H01L51/50 ; H01L27/32 ; H01L51/52
摘要:
One object of the present invention is to provide a light emitting element that includes an organic compound and an inorganic compound and has low driving voltage. The light emitting element of the invention includes a plurality of layers between a pair of electrodes, wherein the plurality of layers includes a layer that contains a carbazole derivative represented by a general formula (1) and an inorganic compound exhibiting an electron accepting property with respect to the carbazole derivative. By utilizing this structure, electrons are transported between the carbazole derivative and the inorganic compound and carriers are internally generated, and hence, the driving voltage of the light emitting element can be reduced.
公开/授权文献
- US20090058267A1 Light emitting element and light emitting device 公开/授权日:2009-03-05
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