The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Feb. 28, 2013
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Hiroko Murata, Kanagawa, JP;
Harue Nakashima, Kanagawa, JP;
Sachiko Kawakami, Kanagawa, JP;
Nobuharu Ohsawa, Kanagawa, JP;
Ryoji Nomura, Kanagawa, JP;
Satoshi Seo, Kanagawa, JP;
Abstract
An oxadiazole derivative represented by the following general formula (G1) is synthesized and applied to the light emitting element, A; wherein Ais a substituent represented by a general formula (Am1), (Am2), or (Am3); each of α, β, and βrepresents an arylene group having 6 to 25 carbon atoms; each of Ato Arepresents an aryl group having 6 to 25 carbon atoms; each of Rto Rrepresents hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms; and Rrepresents an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 25 carbon atoms.