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:
May. 24, 2022
Filed:
Mar. 29, 2019
Universal Display Corporation, Ewing, NJ (US);
Jui-Yi Tsai, Newtown, PA (US);
Alexey Borisovich Dyatkin, Ambler, PA (US);
Zhiqiang Ji, Chalfont, PA (US);
Pierre-Luc T. Boudreault, Pennington, NJ (US);
Miguel A. Esteruelas, Saragossa, ES;
Llorenç Benavent, Saragossa, ES;
Ana M. Lopez, Saragossa, ES;
Enrique Oñate, Saragossa, ES;
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having the formula Ir(L)(L), where Lhas a structure of Formula I and Lis a bidentate ligand is disclosed. In the structure of Formula I, rings A, B, C, and D are each independently 5- or 6-membered carbocyclic or heterocyclic rings; each of Zto Zis C or N; Lhas at least one Ir—C bond; L is CR or N; each RR, R, and Ris independently hydrogen or one of the preferred general substituents; and any two substituents may be joined or fused together to form a ring. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.