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:
Dec. 30, 2025
Filed:
Jan. 08, 2024
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
So-Young Jung, Gyeonggi-do, KR;
Ji-Song Jun, Gyeonggi-do, KR;
Su-Hyun Lee, Gyeonggi-do, KR;
Sang-Hee Cho, 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 and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of the compounds wherein the first host compound is represented by formula 1 and the second host compound is represented by formula 2, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifetime property.