Invention Grant
US07898171B2 Stilbene derivatives, light-emitting element and light-emitting device
有权
二苯乙烯衍生物，发光元件和发光器件
- Patent Title: Stilbene derivatives, light-emitting element and light-emitting device
- Patent Title (中): 二苯乙烯衍生物，发光元件和发光器件
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Application No.: US12351138Application Date: 2009-01-09
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Publication No.: US07898171B2Publication Date: 2011-03-01
- Inventor: Masakazu Egawa , Harue Nakashima , Sachiko Kawakami , Nobuharu Ohsawa , Satoshi Seo , Ryoji Nomura
- Applicant: Masakazu Egawa , Harue Nakashima , Sachiko Kawakami , Nobuharu Ohsawa , Satoshi Seo , Ryoji Nomura
- Applicant Address: JP
- Assignee: Semiconductor Energy laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2005-292366 20051005; JP2005-343674 20051129
- Main IPC: H01J1/62
- IPC: H01J1/62
Abstract:
The present invention provides a novel substance having an excellent color purity of blue, a light-emitting element and a light-emitting device using the novel substance. A stilbene derivative has a structure shown by the general formula (1). In the general formula (1), R1 is hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms. R2 is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 25 carbon atoms. Each of R3 to R5 is hydrogen or an alkyl group having 1 to 4 carbon atoms. Ar1 is an aryl group having 6 to 25 carbon atoms.
Public/Granted literature
- US20090146558A1 Stilbene Derivatives, Light-Emitting Element and Light-Emitting Device Public/Granted day:2009-06-11
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