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:
May. 05, 2026
Filed:
Sep. 03, 2021
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Inventors:
Yoo-Jin Doh, Gyeonggi-do, KR;
Soo-Yong Lee, Gyeonggi-do, KR;
Chi-Sik Kim, Gyeonggi-do, KR;
Seung-Hoon Yoo, Gyeonggi-do, KR;
Dong-Hyung Lee, Gyeonggi-do, KR;
Doo-Hyeon Moon, Gyeonggi-do, KR;
Soo-Jin Hwang, Gyeonggi-do, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 30/80 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/626 (2023.02); H10K 85/6574 (2023.02); H10K 85/658 (2023.02); H10K 30/865 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02);
Abstract
The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device according to the present disclosure may exhibit low voltage, high efficiency, and/or long lifespan by including a light-emitting layer and an electron buffer layer comprising a specific organic electroluminescent material.