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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 12690386 B1

PDFFull Text
Date of Patent:
Jul. 21, 2026

Filed:

Aug. 28, 2019

Plurality of host materials and organic electroluminescent device comprising the same

Applicant:

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

Inventors:

Su-Hyun Lee, Gyeonggi-do, KR;

Bitnari Kim, Gyeonggi-do, KR;

So-Young Jung, Gyeonggi-do, KR;

Hyo-Nim Shin, Gyeonggi-do, KR;

Mi-Ja Lee, Gyeonggi-do, KR;

Assignee:

DuPont Specialty Materials Korea Ltd., , KR;

Attorney:

G. Creston Campbell

Primary Examiner:

Sean M Deguire

Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 405/10 (2006.01); C07D 405/14 (2006.01); C07D 487/04 (2006.01); C07F 15/00 (2006.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6574 (2023.02); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 487/04 (2013.01); C07F 15/0033 (2013.01); C09K 11/02 (2013.01); C09K 11/06 (2013.01); H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/6572 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/90 (2023.02);
Abstract

The present disclosure relates to a plurality of host materials comprising a first host compound represented by formula 1 and a second host compound represented by formula 2 and an organic electroluminescent device comprising the same. By comprising the specific combination of the compound as host materials, an organic electroluminescent device having low driving voltage, high luminous efficiency and/or long lifespan can be provided compared with a conventional organic electroluminescent device.

Find Patent Forward Citations

Lee, Su-Hyun. (2026). Plurality of host materials and organic electroluminescent device comprising the same (U.S. Patent No. 12690386). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12690386

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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