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:
Jul. 28, 2015
Filed:
Apr. 28, 2010
Shuichi Sugita, Akishima, JP;
Eisaku Katoh, Hachioji, JP;
Motoaki Sugino, Akishima, JP;
Rie Katakura, Hino, JP;
Shuichi Sugita, Akishima, JP;
Eisaku Katoh, Hachioji, JP;
Motoaki Sugino, Akishima, JP;
Rie Katakura, Hino, JP;
KONICA MINOLTA, INC., , JP;
Abstract
Disclosed is an organic electroluminescent element which is characterized in that constituent layers including at least a phosphorescent light-emitting layer are provided between a pair of electrodes, and at least one of the constituent layers contains a compound represented by general formula (1). (In the formula, A, Aand Aeach represents a substituent; n1 and n2 each represents an integer of 0-3; Xand Xeach represents an oxygen atom, a sulfur atom, an alkylene group, an imino group, a carbonyl group, a sulfoxide group or a sulfonyl group, or alternatively Xrepresents a bonding hand; and Z, Z, Zand Zeach represents an optionally substituted aromatic heterocyclic ring or an aromatic hydrocarbon ring, provided that all of the Z, Z, Zand Zare not aromatic hydrocarbon rings at the same time.)