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:
Aug. 27, 2013
Filed:
Sep. 03, 2009
Chuanjun Xia, Lawrenceville, NJ (US);
Bert Alleyne, Ewing, NJ (US);
Raymond C. Kwong, Plainsboro, NJ (US);
James Fiordeliso, Morrisville, PA (US);
Jason Brooks, Philadelphia, PA (US);
Vadim Adamovich, Yardley, PA (US);
Michael S. Weaver, Princeton, NJ (US);
Nasrin Ansari, Monmouth, NJ (US);
Alan Deangelis, Pennington, NJ (US);
Dinesh Rayabarapu, Waldwick, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Bert Alleyne, Ewing, NJ (US);
Raymond C. Kwong, Plainsboro, NJ (US);
James Fiordeliso, Morrisville, PA (US);
Jason Brooks, Philadelphia, PA (US);
Vadim Adamovich, Yardley, PA (US);
Michael S. Weaver, Princeton, NJ (US);
Nasrin Ansari, Monmouth, NJ (US);
Alan Deangelis, Pennington, NJ (US);
Dinesh Rayabarapu, Waldwick, NJ (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.