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. 29, 2015
Filed:
Nov. 19, 2010
Applicants:
Akifumi Nakamura, Kanagawa, JP;
Yasuharu Ujiie, Kanagawa, JP;
Yasunori Kijima, Tokyo, JP;
Inventors:
Assignee:
JOLED INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5088 (2013.01); H01L 51/006 (2013.01); H01L 51/0052 (2013.01); H01L 51/0059 (2013.01); H01L 51/0072 (2013.01);
Abstract
An organic electroluminescence device having high light emitting efficiency and improved reliability is provided. The organic electroluminescence device includes: an anode containing at least aluminum (Al); a cathode; and an organic layer between the anode and the cathode, the organic layer including a light emitting layer. The organic layer has a hole injection layer composed of a sulfonic acid derivative between the anode and the light emitting layer.