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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 12317745 B1

PDFFull Text
Date of Patent:
May. 27, 2025

Filed:

Oct. 25, 2017

Organic electroluminescent materials and devices

Applicant:

Universal Display Corporation, Ewing, NJ (US);

Inventors:

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

Bert Alleyne, Ewing, NJ (US);

Assignee:

UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);

Attorney:

DUANE MORRIS LLP

Primary Examiner:

Jennifer A Boyd

Assistant Examiner:

Rachel undefined Simbana

Int. Cl.
CPC ...
C07D 209/82 (2006.01); C07D 239/70 (2006.01); C07D 239/78 (2006.01); C07D 251/42 (2006.01); C07F 7/08 (2006.01); C07F 15/00 (2006.01); C09B 57/00 (2006.01); C09K 11/06 (2006.01); G09F 9/30 (2006.01); H05B 33/12 (2006.01); H05B 33/14 (2006.01); H10K 50/00 (2023.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 59/00 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 99/00 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 209/82 (2013.01); C07D 239/70 (2013.01); C07D 239/78 (2013.01); C07D 251/42 (2013.01); C07F 15/00 (2013.01); C09K 11/06 (2013.01); G09F 9/30 (2013.01); H05B 33/12 (2013.01); H05B 33/14 (2013.01); H10K 50/00 (2023.02); H10K 59/00 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 99/00 (2023.02);
Abstract

This present invention includes novel ligands for metal complexes, which include three fused cycles or heterocycles. The first ring may be either a pyridine or a pyrimidine ring, which coordinates with the iridium metal. The second ring may be a six-membered ring, which may or may not contain nitrogen atoms. The third ring may be either a five or six membered ring. The combination of these aromatic rings provides near infrared or infrared emission in PHOLEDs devices. The bottom ring of the ligand is an alkylated cycle or heterocycle which provides a good efficiency and emission line shape.

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