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:
Oct. 28, 2014
Filed:
Feb. 26, 2008
Applicants:
Emiko Kambe, Kanagawa, JP;
Akifumi Nakamura, Kanagawa, JP;
Yasunori Kijima, Tokyo, JP;
Hiroshi Yamamoto, Chiba, JP;
Inventors:
Emiko Kambe, Kanagawa, JP;
Akifumi Nakamura, Kanagawa, JP;
Yasunori Kijima, Tokyo, JP;
Hiroshi Yamamoto, Chiba, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); H01L 51/54 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5048 (2013.01); H01L 51/5052 (2013.01); H01L 51/5206 (2013.01); H01L 51/006 (2013.01); H01L 51/5234 (2013.01); H01L 2251/558 (2013.01); H01L 51/5265 (2013.01); H01L 51/0059 (2013.01); H01L 51/0072 (2013.01); Y10S 428/917 (2013.01);
Abstract
An electroluminescent device is provided with an anode, a cathode, and an organic layer having at least a light-emitting layer and held between the anode and the cathode. A layer with a nitrogen-containing heterocycle derivative therein is arranged between the anode and the light-emitting layer. The layer with the nitrogen-containing heterocycle derivative contained therein has a thickness greater than a hole supply layer arranged between the anode and the light-emitting layer.