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:
Feb. 26, 2021
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Sang-Hee Cho, Gyeonggi-do, KR;
So-Young Jung, Gyeonggi-do, KR;
Mi-Ja Lee, Gyeonggi-do, KR;
Su-Hyun Lee, Gyeonggi-do, KR;
Jin-Ri Hong, Gyeonggi-do, KR;
Abstract
The present disclosure relates to an organic electroluminescent compound represented by formula 2-1, a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure as a single host material, or the specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to provide an organic electroluminescent device having lower driving voltage, higher luminous efficiency, and/or improved lifetime properties, compared to conventional organic electroluminescent devices.