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. 22, 2019
Filed:
Jul. 09, 2018
Applicant:
Joled Inc., Tokyo, JP;
Inventor:
Koyo Sakamoto, Tokyo, JP;
Assignee:
JOLED INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 27/32 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5265 (2013.01); H01L 27/3244 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01); H01L 51/5218 (2013.01); H01L 51/5225 (2013.01); H01L 51/5234 (2013.01); H01L 51/56 (2013.01); H01L 2251/301 (2013.01); H01L 2251/308 (2013.01); H01L 2251/5315 (2013.01); H01L 2251/558 (2013.01);
Abstract
Disclosed herein is an organic EL element including a first electrode, a light emitting layer, a ground layer, and a light-transmitting second electrode stacked in this order over a substrate. The ground layer is light-transmitting and electrically conductive, and its surface on which the second electrode is stacked has a surface roughness of 0.3 to 2.7 nm. The second electrode is a silver thin film layer formed of silver or containing silver as a main constituent.