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:
Feb. 28, 2023
Filed:
Mar. 26, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jung Oh Huh, Daejeon, KR;
Dong Hoon Lee, Daejeon, KR;
Boon Jae Jang, Daejeon, KR;
Min Young Kang, Daejeon, KR;
Dong Uk Heo, Daejeon, KR;
Mi Yeon Han, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 405/10 (2006.01); C07D 405/14 (2006.01); C07D 409/10 (2006.01); C07D 471/04 (2006.01); H01L 51/50 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0067 (2013.01); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 409/10 (2013.01); C07D 471/04 (2013.01); C09K 11/06 (2013.01); H01L 51/00 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0074 (2013.01); H01L 51/50 (2013.01); H01L 51/5004 (2013.01); H01L 51/5036 (2013.01); H01L 51/5072 (2013.01); H01L 2251/5384 (2013.01); H01L 2251/552 (2013.01);
Abstract
The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, E>Eand E>E, and having improved driving voltage, efficiency, and lifetime.