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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 12598905 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

Jun. 15, 2018

Organic electroluminescent materials and devices

Applicant:

Universal Display Corporation, Ewing, NJ (US);

Inventors:

Zhiqiang Ji, Ewing, NJ (US);

Alexey Borisovich Dyatkin, Ambler, PA (US);

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

Assignee:

UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);

Attorney:

DUANE MORRIS LLP

Primary Examiner:

Elizabeth M Dahlburg

Int. Cl.
CPC ...
H10K 85/30 (2023.01); C07F 15/00 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
H10K 85/342 (2023.02); C07F 15/0033 (2013.01); C09K 11/06 (2013.01); H10K 85/346 (2023.02); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 85/6574 (2023.02); H10K 2101/10 (2023.02);
Abstract

A compound comprising a first ligand Lof Formula I is provided. In Formula I, A is a 5- or 6-membered aryl or heteroaryl ring; each of Z-Zis either C or N; each of Y-Yis selected from a direct bond, BR, NR, PR, O, S, Se, C═O, S═O, SO2, CRR', SiRR′, and GeRR′; at least one of Yand Yis not a direct bond; at least one of Yand Yis not a direct bond; each R, R, R, R, and R′ is independently hydrogen or a variety of substituents; any two adjacent substitutions in R, Rand Rcan be joined or fused into a ring; ligand Lis coordinated to a metal M; Lis optionally linked with other ligands; and M is optionally coordinated to other ligands. Organic light emitting devices and consumer products containing the compounds are also disclosed.

Find Patent Forward Citations

Ji, Zhiqiang. (2026). Organic electroluminescent materials and devices (U.S. Patent No. 12598905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12598905

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

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