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, 2011
Filed:
Nov. 16, 2005
Keiji Okinaka, Kawasaki, JP;
Masataka Yashima, Tokyo, JP;
Akihito Saitoh, Yokohama, JP;
Naoki Yamada, Tokyo, JP;
Akihiro Senoo, Kawasaki, JP;
Kazunori Ueno, Ebina, JP;
Keiji Okinaka, Kawasaki, JP;
Masataka Yashima, Tokyo, JP;
Akihito Saitoh, Yokohama, JP;
Naoki Yamada, Tokyo, JP;
Akihiro Senoo, Kawasaki, JP;
Kazunori Ueno, Ebina, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An organic light-emitting device is provided which has an optical output with a high efficiency, a high luminance and a long life and which includes a pair of electrodes including an anode and a cathode, and at least one layer comprising an organic compound provided between the pair of electrodes, wherein at least one layer having a light-emitting region of the at least one layer comprising the organic compound comprises a first compound represented by the general formula (1): and a second compound having a bandgap larger than a bandgap of the first compound.