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:
Feb. 17, 2009
Filed:
Jun. 25, 2004
Keiji Okinaka, Kanagawa, JP;
Akihito Saitoh, Kanagawa, JP;
Koichi Suzuki, Kanagawa, JP;
Akihiro Senoo, Kanagawa, JP;
Kazunori Ueno, Kanagawa, JP;
Keiji Okinaka, Kanagawa, JP;
Akihito Saitoh, Kanagawa, JP;
Koichi Suzuki, Kanagawa, JP;
Akihiro Senoo, Kanagawa, JP;
Kazunori Ueno, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an organic electroluminescent device having a high-efficiency optical output with high luminance and long life, which includes at least: a pair of electrodes comprising an anode and a cathode; and one or more organic-compound-containing layers sandwiched between the pair of electrodes, and in which among the organic-compound-containing layers, at least one layer having a light-emitting region contains a first compound represented by the following general formula [1] and a second compound having a band gap larger than a band gap of the first compound.