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. 26, 2026
Filed:
Nov. 01, 2022
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Chi-Sik Kim, Gyeonggi-do, KR;
Kyoung-Jin Park, Gyeonggi-do, KR;
Soo-Yong Lee, Gyeonggi-do, KR;
Hyun-Woo Kang, Gyeonggi-do, KR;
So-Mi Park, Gyeonggi-do, KR;
Mi-Ja Lee, Gyeonggi-do, KR;
Abstract
The present disclosure relates to an organic electroluminescent compound represented by formula 2', a plurality of host materials comprising at least one first host compound represented by formula 1 and at least one second host compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material, it is possible to produce an organic electroluminescent device having significantly improved lifetime properties.