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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 12790538 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Apr. 27, 2023

Use of singlet-triplet gap hosts for increasing stability of blue phosphorescent emission

Applicant:

Universal Display Corporation, Ewing, NJ (US);

Inventors:

Nicholas J. Thompson, New Hope, PA (US);

Jerald Feldman, Cherry Hill, NJ (US);

Julia J. Brown, Yardley, PA (US);

Assignee:

UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);

Attorney:

DUANE MORRIS LLP

Primary Examiner:

Jay Yang

Int. Cl.
CPC ...
H01L 51/50 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/20 (2023.01); H10K 101/60 (2023.01); H10K 101/70 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 85/342 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1048 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1062 (2013.01); C09K 2211/1074 (2013.01); C09K 2211/1077 (2013.01); C09K 2211/185 (2013.01); H10K 2101/10 (2023.02); H10K 2101/20 (2023.02); H10K 2101/60 (2023.02); H10K 2101/70 (2023.02);
Abstract

Arrangements for phosphorescent blue emissive materials, layers, and devices are provided. The arrangements include a host having first a triplet energy level of at least 2.8 eV and an absolute difference of not more than 0.3 eV between the first singlet and triplet energy levels, and an emitter that includes an emissive transition metal complex and a first triplet energy level of at least 2.7 eV.

Find Patent Forward Citations

Quick Actions:

Thompson, Nicholas. (2026). Use of singlet-triplet gap hosts for increasing stability of blue phosphorescent emission (U.S. Patent No. 12790538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12790538

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