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:
Mar. 25, 2025
Filed:
Jul. 23, 2021
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
So-Young Jung, Gyeonggi-do, KR;
Jin-Ri Hong, Gyeonggi-do, KR;
Doo-Hyeon Moon, Gyeonggi-do, KR;
Sang-Hee Cho, Gyeonggi-do, KR;
Su-Hyun Lee, Gyeonggi-do, KR;
Du-Yong Park, Gyeonggi-do, KR;
Mi-Ja Lee, Gyeonggi-do, KR;
Abstract
The present disclosure relates to an organic electroluminescent compound represented by formula 2' or formula 2″, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifespan properties can be provided by including the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material(s).