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:
Jul. 12, 2022
Filed:
Feb. 27, 2018
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Inventors:
Tae-Jin Lee, Gyeonggi-do, KR;
Jeong-Eun Yang, Gyeonggi-do, KR;
Dong-Hyung Lee, Gyeonggi-do, KR;
Sang-Hee Cho, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01); C07D 403/14 (2006.01); C07D 405/14 (2006.01); C07D 491/048 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); H01L 51/006 (2013.01); H01L 51/0061 (2013.01); H01L 51/0067 (2013.01); H01L 51/0073 (2013.01); H01L 51/0074 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 487/06 (2013.01); C07D 491/048 (2013.01); H01L 51/5004 (2013.01); H01L 51/5012 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01);
Abstract
The present disclosure relates to an organic electroluminescent device comprising a light-emitting layer and a hole transport zone. By comprising a specific combination of a light-emitting layer and a hole transport zone, it is possible to provide an organic electroluminescent device having low driving voltage, high luminous efficiency and/or long lifespan properties.