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. 07, 2023
Filed:
Mar. 31, 2020
Universal Display Corporation, Ewing, NJ (US);
Pierre-Luc T. Boudreault, Pennington, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Scott Joseph, Ewing, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having a formula M(L)(L)(L)is provided. In the compound of M(L)(L)(L), ligand Lis ligand Lis and ligand Lis In addition, M is a metal having an atomic mass greater than 40, x is 1, 2, or 3, and y and z are independently 0, 1, or 2. In the compound, Zis carbon or nitrogen; one of Zto Zis nitrogen and three of Zto Zare carbon substituted by R, and rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring. Each R, R, R, and Ris independently selected from a group of substituents, where at least one Ris heteroaryl, which can be further substituted, and any adjacent substitutents are optionally joined or fused into a ring. Formulations and devices, such as OLEDs, that include the first compound are also provided.