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. 23, 2013
Filed:
Jul. 04, 2008
Kazuki Nishimura, Sodegaura, JP;
Toshihiro Iwakuma, Sodegaura, JP;
Masahiro Kawamura, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Kenichi Fukuoka, Sodegaura, JP;
Yukitoshi Jinde, Sodegaura, JP;
Kazuki Nishimura, Sodegaura, JP;
Toshihiro Iwakuma, Sodegaura, JP;
Masahiro Kawamura, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Kenichi Fukuoka, Sodegaura, JP;
Yukitoshi Jinde, Sodegaura, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
An organic EL device includes: an anode for injecting holes; a phosphorescent-emitting layer; a fluorescent-emitting layer; and a cathode for injecting electrons. The phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for phosphorescent emission. The fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for fluorescent emission. The fluorescent host is at least one of an asymmetric anthracene derivative represented by a formula (1) below and a pyrene derivative represented by a formula (2) below.