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:
Nov. 22, 2016
Filed:
Apr. 08, 2013
Kyushu University National University Corporation, Fukuoka-shi, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Hiroki Uoyama, Fukuoka, JP;
Hiroko Nomura, Fukuoka, JP;
Kenichi Goushi, Fukuoka, JP;
Takuma Yasuda, Fukuoka, JP;
Ryosuke Kondo, Fukuoka, JP;
Katsuyuki Shizu, Fukuoka, JP;
Hajime Nakanotani, Fukuoka, JP;
Jyunichi Nishide, Fukuoka, JP;
KYULUX, INC., Fukuoka, JP;
Abstract
An organic light-emitting device having a light-emitting layer containing a compound represented by the general formula below has a high light emission efficiency. In the general formula, at least one of Rto Rrepresents a cyano group, at least one of Rto Rrepresents a 9-carbazolyl group, a 1,2,3,4-tetrahydro-9-carbazolyl group, a 1-indolyl group or a diarylamino group, and the balance of Rto Rrepresents a hydrogen atom or a substituent.