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:
Nov. 28, 2023
Filed:
May. 20, 2021
Universal Display Corporation, Ewing, NJ (US);
Pierre-Luc T. Boudreault, Pennington, NJ (US);
Harvey Wendt, Medford Lakes, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having a formula M(L)(L)(L), where ligand Lis ligand Lis and ligand Lis is disclosed. In formula M(L)(L)(L), M is a metal having an atomic number greater than 40; x is 1 or 2; y and z are independently 0, 1, or 2; x+y+z is the oxidation state of the metal M; A-Aare carbon or nitrogen; ring B is bonded to ring A through a C—C bond; M is bonded to ring A through a M-C bond; X is O, S, Se, CRR', or NR; rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; at least one Ris a five-membered or six-membered heterocyclic ring which can be further substituted by R; each R substituent is independently selected from the several substituents; and any adjacent R substitutents are optionally joined to form a ring.