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.:
Date of Patent:
Mar. 05, 2024
Filed:
Aug. 07, 2020
Applicant:
Universal Display Corporation, Ewing, NJ (US);
Inventors:
Tyler Fleetham, Newtown, PA (US);
Hsiao-Fan Chen, Lawrence Township, NJ (US);
Jerald Feldman, Cherry Hill, NJ (US);
Assignee:
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/30 (2023.01); H05B 33/00 (2006.01); C07D 401/14 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/346 (2023.02); C07D 401/14 (2013.01); H05B 33/00 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02);
Abstract
Provided is a new composition of matter for phosphorescent emitters containing a chelating ligand including five or more fused carbocyclic or heterocyclic rings that form two bonds to a metal forming a 7-membered chelate. This fused ring structure provides added rigidity to the molecule for enhanced stability in an OLED device and improve photophysical properties.