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. 08, 2022
Filed:
Feb. 07, 2020
Universal Display Corporation, Ewing, NJ (US);
Raymond Kwong, Plainsboro, NJ (US);
Bin Ma, Plainsboro, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Bert Alleyne, Ewing, NJ (US);
Jason Brooks, Philadelphia, PA (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having a structure of is disclosed. In these formulas, each R, R, and Ris independently selected from hydrogen, alkyl, and aryl; at least one of Rand Ris a branched alkyl containing at least 4 carbon atoms, where the branching occurs at a position further than the benzylic position; where Rand Rare mono-, di-, tri-, tetra-, or no substitutions; and Ris mono-, di-, or no substitutions. Heteroleptic iridium complexes including such compounds, and devices including such compounds are also disclosed.