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. 18, 2014
Filed:
May. 15, 2014
Applicant:
Universal Display Corporation, Ewing, NJ (US);
Inventors:
David B. Knowles, Apollo, PA (US);
Chun Lin, Langhorne, PA (US);
Peter Borden MacKenzie, Newton, PA (US);
Jui-Yi Tsai, Lawrenceville, NJ (US);
Robert W. Walters, Export, PA (US);
Scott A. Beers, Flemington, NJ (US);
Cory S. Brown, Pittsburgh, PA (US);
Walter H. Yeager, Yardley, PA (US);
Assignee:
Universal Display Corporation, Ewing, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07F 15/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1',2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described.