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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 12466848 B1

PDFFull Text
Date of Patent:
Nov. 11, 2025

Filed:

Nov. 15, 2021

Organic electroluminescent materials and devices

Applicant:

Universal Display Corporation, Ewing, NJ (US);

Inventors:

Jui-Yi Tsai, Newtown, PA (US);

Alexey Borisovich Dyatkin, Ambler, PA (US);

Walter Yeager, Yardley, PA (US);

Pierre-Luc T. Boudreault, Pennington, NJ (US);

Assignee:

UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);

Attorney:

DUANE MORRIS LLP

Primary Examiner:

Dylan C Kershner

Assistant Examiner:

Braelyn R Watson

Int. Cl.
CPC ...
C07F 15/00 (2006.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
C07F 15/0086 (2013.01); H10K 85/346 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6576 (2023.02); H10K 85/658 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02);
Abstract

Provided is a new class of phosphorescent emitters. The inventive emitters feature a benzimidazole phenoxide ligand, which is connected via 'top linkers' to form novel tetradentate ligands. These phosphorescent emitters are Pt tetradentate complexes when used in OLEDs as emitters improves device external quantum efficiency (EQE) and operational lifetimes.

Find Patent Forward Citations

Tsai, Jui-Yi. (2025). Organic electroluminescent materials and devices (U.S. Patent No. 12466848). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12466848

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

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