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
Applicants:
Toshifumi Mori, Tokyo, JP;
Koichi Suzuki, Yokohama, JP;
Akira Tsuboyama, Machida, JP;
Satoru Shiobara, Kawasaki, JP;
Kenichi Ikari, Kawasaki, JP;
Inventors:
Toshifumi Mori, Tokyo, JP;
Koichi Suzuki, Yokohama, JP;
Akira Tsuboyama, Machida, JP;
Satoru Shiobara, Kawasaki, JP;
Kenichi Ikari, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/20 (2006.01); H01L 33/00 (2006.01); H01L 29/201 (2006.01); H01L 29/24 (2006.01); H01L 29/08 (2006.01); H01L 35/24 (2006.01); H01L 51/00 (2006.01); H01L 23/58 (2006.01); H01L 23/48 (2006.01); H01L 23/52 (2006.01); H01L 29/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high-efficiency, white organic electroluminescent device has such a structure that its emission layer is obtained by laminating sub-emission layers of red, green, and blue, respectively. The green sub-emission layer contacting a hole transport layer has a delayed fluorescent material, and the red sub-emission layer has a phosphorescent light emitting material.