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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.:

US 12279525 B1

PDFFull Text
Date of Patent:
Apr. 14, 2025

Filed:

Aug. 01, 2021

Organic electroluminescent compound, a plurality of host materials and organic electroluminescent device comprising the same

Applicant:

Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;

Inventors:

Hyo-Soon Park, Gyeonggi-do, KR;

Kyoung-Jin Park, Gyeonggi-do, KR;

Sang-Hee Cho, Gyeonggi-do, KR;

So-Mi Park, Gyeonggi-do, KR;

Dong-Hyung Lee, Gyeonggi-do, KR;

Assignee:

DuPont Specialty Materials Korea Ltd., , KR;

Attorney:

G. Creston Campbell

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2005.12); C07D 307/91 (2005.12); C07D 403/10 (2005.12); H10K 85/60 (2022.12); H10K 50/11 (2022.12); H10K 101/00 (2022.12);
U.S. Cl.
CPC ...
H10K 85/654 (2023.01); C07D 307/91 (2012.12); C07D 403/10 (2012.12); H10K 85/633 (2023.01); H10K 85/636 (2023.01); H10K 85/6572 (2023.01); H10K 50/11 (2023.01); H10K 85/623 (2023.01); H10K 85/6574 (2023.01); H10K 85/6576 (2023.01); H10K 2101/90 (2023.01);
Abstract

The present disclosure relates to an organic electroluminescent compound represented by formula 1, a plurality of host materials comprising a combination of specific compounds, and an organic electroluminescent device comprising the same. The organic electroluminescent device having improved driving voltage, luminous 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).

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