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:
Oct. 21, 2025
Filed:
Jul. 13, 2021
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Hyun-Ju Kang, Gyeonggi-do, KR;
So-Young Jung, Gyeonggi-do, KR;
Eun-Joung Choi, Gyeonggi-do, KR;
Hong-Yeop Na, Gyeonggi-do, KR;
Sang-Hee Cho, Gyeonggi-do, KR;
Su-Hyun Lee, Gyeonggi-do, KR;
Jin-Ri Hong, Gyeonggi-do, KR;
Abstract
The present disclosure relates to 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 host materials according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.