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:
Jan. 30, 2018
Filed:
Oct. 29, 2015
Universal Display Corporation, Ewing, NJ (US);
Raymond Kwong, Fo Tan, HK;
Chi Hang Lee, Chaiwan, HK;
Siu Tung Lam, Apleichau, HK;
Kit Yee Tsang, Shatin, HK;
Geza Szigethy, Ewing, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound including a ligand Lof Formula I, is described. In Formula I: rings A and B each independently represent a 5-membered or 6-membered carbocyclic or heterocyclic ring; X, Y, Z, and W are either carbon or nitrogen; Rto Rare selected from a variety of substituents, where adjacent substituents can be joined to form a fused ring; ligand Lis coordinated to a metal M by X-M and Y-M bonds; and ligand Lis optionally linked with other ligands to produce a tridentate, tetradentate, pentadentate or hexadentate ligand. Formulations and devices, such as an OLEDs, that include the compound that include a ligand Lof Formula I are also described.