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. 06, 2010
Filed:
Oct. 31, 2007
Yoshiyuki Suzuri, Musashino, JP;
Hiroshi Kita, Hachioji, JP;
Eisaku Katoh, Hachioji, JP;
Tomohiro Oshiyama, Hachioji, JP;
Mitsuhiro Fukuda, Chofu, JP;
Noriko Ueda, Hino, JP;
Yoshiyuki Suzuri, Musashino, JP;
Hiroshi Kita, Hachioji, JP;
Eisaku Katoh, Hachioji, JP;
Tomohiro Oshiyama, Hachioji, JP;
Mitsuhiro Fukuda, Chofu, JP;
Noriko Ueda, Hino, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
An organic electroluminescent element and a display device exhibiting high emission efficiency and long life. The organic electroluminescent element contains a pair of electrodes having therebetween at least one constituting layer containing a phosphorescent light emitting layer, wherein one of the constituting layer contains a compound of Formula (1): wherein Zrepresents an aromatic heterocylic ring which may have a substituent; Zrepresents an aromatic heterocylic ring or an aromatic hydrocarbon ring both of which may have a substituent; Zrepresents a divalent linking group or a single bond; and Rrepresents a hydrogen atom or a substituent.