Invention Grant
- Patent Title: Quinoxaline derivative, light-emitting element, light-emitting device, and electronic appliance
- Patent Title (中): 喹喔啉衍生物，发光元件，发光装置和电子器具
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Application No.: US11860190Application Date: 2007-09-24
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Publication No.: US08283052B2Publication Date: 2012-10-09
- Inventor: Masakazu Egawa , Atsushi Tokuda , Satoko Shitagaki
- Applicant: Masakazu Egawa , Atsushi Tokuda , Satoko Shitagaki
- 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: JP2006-268356 20060929
- Main IPC: H01L51/54
- IPC: H01L51/54 ; C09K11/06
Abstract:
It is an object to provide a new substance excellent in electron-transporting property, and a light-emitting element and a light-emitting device using the substance. A quinoxaline derivative represented by the general formula (G1) is provided. In the general formula (G1), each of R1 to R4 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms; and each of Ar1 and Ar2 represents an aryl group having 6 to 25 carbon atoms. Such a quinoxaline derivative is excellent in electron-transporting property and very effective as an electron-transporting material in a light-emitting element and the like.
Public/Granted literature
- US20080193794A1 Quinoxaline Derivative, Light-Emitting Element, Light-Emitting Device, and Electronic Appliance Public/Granted day:2008-08-14
Information query
IPC分类:
