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. 30, 2025
Filed:
Dec. 04, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Sang Duk Suh, Daejeon, KR;
Min Woo Jung, Daejeon, KR;
Jungha Lee, Daejeon, KR;
Su Jin Han, Daejeon, KR;
Seulchan Park, Daejeon, KR;
Sunghyun Hwang, Daejeon, KR;
Dong Hoon Lee, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 487/04 (2006.01); H10K 50/11 (2023.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); H10K 85/615 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02);
Abstract
Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device including a light emitting layer comprising a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: