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:
Aug. 01, 2023
Filed:
May. 20, 2020
Applicant:
Universal Display Corporation, Ewing, NJ (US);
Inventors:
Tongxiang Lu, Ewing, NJ (US);
George Fitzgerald, Ewing, NJ (US);
Paul Lahti, Ewing, NJ (US);
Morgan C. MacInnis, Ewing, NJ (US);
Assignee:
Universal Display Corporation, Ewing, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H10K 85/30 (2023.01); C09K 11/06 (2006.01); C09K 11/02 (2006.01); C07F 15/00 (2006.01); H10K 50/11 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/342 (2023.02); C07F 15/0033 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); C09K 2211/1022 (2013.01); C09K 2211/1074 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 85/631 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02);
Abstract
This invention relates to the development of heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on a pair of 5-membered aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. The materials were determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.