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:
Dec. 13, 2011
Filed:
Oct. 05, 2009
Satoru Shiobara, Kawasaki, JP;
Toshifumi Mori, Tokyo, JP;
Kenichi Ikari, Kawasaki, JP;
Koichi Suzuki, Yokohama, JP;
Akira Tsuboyama, Machida, JP;
Satoru Shiobara, Kawasaki, JP;
Toshifumi Mori, Tokyo, JP;
Kenichi Ikari, Kawasaki, JP;
Koichi Suzuki, Yokohama, JP;
Akira Tsuboyama, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An organic electroluminescent display apparatus having organic electroluminescent devices each of which is excellent in color reproducibility and has high emission efficiency in which green organic electroluminescent devices each have a delayed fluorescent material and a microcavity, and the hole transport layer of each of the devices has the same thickness as that of the hole transport layer of each of blue organic electroluminescent devices.