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:
Apr. 13, 2021
Filed:
Jul. 13, 2020
Universal Display Corporation, Ewing, NJ (US);
David Knowles, Apollo, PA (US);
Chun Lin, Yardley, PA (US);
Peter Mackenzie, Enfield, CT (US);
Jui-Yi Tsai, Newtown, PA (US);
Robert W. Walters, Export, PA (US);
Scott Beers, Flemington, NJ (US);
Cory S. Brown, Monroeville, PA (US);
Walter Yeager, Yardley, PA (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
Compounds comprising phosphorescent metal complexes comprising cyclometallated ligands having a structure of In the vgs3, each of the Eatoms is selected from C and N, except that Eis selected from C, N, and S. The Eatoms collectively comprise an 18 pi-electron system, provided that Eand Eare different. The Rsubstituents are each, independently, H, hydrocarbyl, heteroatom substituted hydrocarbyl, cyano, fluoro, OR, SR, NRR, BRR, or SiRRR, where the Rsubstituents are each, independently, hydrocarbyl or heteroatom substituted hydrocarbyl. Any of the Ror Rsubstituents can be linked to form a saturated or unsaturated, aromatic or non-aromatic ring, provided that the Rsubstituents are not present when the corresponding one of E atoms is N or S. Organic light emitting diode devices comprising these compounds are also described.