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:
Jul. 22, 2025
Filed:
Jul. 16, 2021
Universal Display Corporation, Ewing, NJ (US);
Tongxiang Lu, Lawrenceville, NJ (US);
Zhiqiang Ji, Chalfont, PA (US);
George Fitzgerald, Lambertville, NJ (US);
Pierre-Luc T. Boudreault, Pennington, NJ (US);
Jui-Yi Tsai, Newtown, PA (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound comprising a ligand Lof Formula I, where G has a structure of is disclosed. In ligand L, Ring C is a 5-membered or 6-membered ring; K is a direct bond, O, or S; when K is O or S, Xis C; each of R, R, and Ris H or a substituent, and can be joined together to form a ring; each of Xto Xis independently C or N; Xis C if it is connected to ring C; the Rsubstituents of at least two adjacent ones of Xto Xare joined to form a ring; and the ligand Lis complexed to Ir through the two indicated dash lines to form a 5-membered chelate ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.