Invention Grant
- Patent Title: Carbazole compound, light-emitting element, light-emitting device, electronic device, and lighting device
- Patent Title (中): 咔唑化合物,发光元件,发光装置,电子装置和照明装置
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Application No.: US13570367Application Date: 2012-08-09
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Publication No.: US09029558B2Publication Date: 2015-05-12
- Inventor: Harue Osaka , Nobuharu Ohsawa , Masato Suzuki
- Applicant: Harue Osaka , Nobuharu Ohsawa , Masato Suzuki
- Applicant Address: JP Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Kanagawa-ken
- Agency: Nixon Peabody LLP
- Agent Jeffrey L. Costellia
- Priority: JP2011-178966 20110818; JP2012-135953 20120615
- Main IPC: C07D401/14
- IPC: C07D401/14 ; H01L51/00

Abstract:
A novel carbazole compound is provided which can be used as a host material for a light-emitting substance (substance emitting fluorescence or substance emitting phosphorescence). A light-emitting element with high emission efficiency, and a light-emitting device, an electronic device, or a lighting device which has low power consumption are provided. A carbazole compound represented by General Formula (G1) below. (In the formula, Ar1 represents any of hydrogen, a substituted or unsubstituted phenyl group, and a carbazolyl group; R1 to R3 each independently represent any of hydrogen, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; α represents any of a substituted or unsubstituted phenylene group and a substituted or unsubstituted biphenylene group; and n is any of 0, 1, and 2.)
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