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:
May. 16, 2023
Filed:
May. 22, 2019
Universal Display Corporation, Ewing, NJ (US);
Bin Ma, Plainsboro, NJ (US);
Edward Barron, Hamilton, NJ (US);
Alan DeAngelis, Pennington, NJ (US);
Walter Yeager, Yardley, PA (US);
Zeinab Elshenawy, Holland, PA (US);
Harvey Wendt, Medford Lakes, NJ (US);
Ting-Chih Wang, Lawrenceville, NJ (US);
Kwang-Ohk Cheon, Holland, PA (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
A compound having the formula (L)Ir(L), where Lis and Lis selected from is disclosed. In the formula (L)Ir(L), Land Lare different; each of Xto Xis C—Ror nitrogen; X is selected from O, S, and Se; each R, R, R, R, R, and Ris hydrogen or a substituent; Ris alkyl, cycloalkyl, or a combination thereof; and m is 1 or 2. OLEDs, consumer products, and formulations including the compound are also disclosed.