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. 26, 2023
Filed:
Sep. 21, 2018
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Bitnari Kim, Gyeonggi-do, KR;
Su-Hyun Lee, Gyeonggi-do, KR;
So-Young Jung, Gyeonggi-do, KR;
Hyo-Soon Park, Gyeonggi-do, KR;
Tae-Jun Han, Gyeonggi-do, KR;
Young-Jun Cho, Gyeonggi-do, KR;
Sang-Hee Cho, Gyeonggi-do, KR;
Abstract
The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.