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:
May. 31, 2016
Filed:
Dec. 20, 2010
Masahiro Kawamura, Sodegaura, JP;
Yuichiro Kawamura, Sodegaura, JP;
Yumiko Mizuki, Sodegaura, JP;
Hiroyuki Saito, Sodegaura, JP;
Hirokatsu Ito, Sodegaura, JP;
Masahiro Kawamura, Sodegaura, JP;
Yuichiro Kawamura, Sodegaura, JP;
Yumiko Mizuki, Sodegaura, JP;
Hiroyuki Saito, Sodegaura, JP;
Hirokatsu Ito, Sodegaura, JP;
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Abstract
An organic electroluminescence device includes a pair of electrodes and an organic compound layer therebetween. The organic compound layer includes an emitting layer. The emitting layer includes a pyrene derivative represented by formula (1), such that a content of the pyrene derivative in the emitting layer is 50 to 100 wt %. Arand Arare independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms. Xand Xto Xare a hydrogen atom. Xis a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, provided that Aror Aris different from X. In a case where any of Ar, Ar, and Xis the aryl group having a substituent, the substituent is independently an alkyl group, a cycloalkyl group, an aryl group, a silyl group, or a cyano group.