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:
Feb. 10, 2026
Filed:
Aug. 24, 2022
Universal Display Corporation, Ewing, NJ (US);
Lichang Zeng, Lawrenceville, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Zhiqiang Ji, Hillsborough, NJ (US);
Chun Lin, Yardley, PA (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having formula (L)Ir(L)or formula (L)Pt(L)is provided, in which the ligand Lhas a structure of Formula I, wherein R has the structure of where two adjacent atoms from the four atoms marked with * are C and are fused to ring B. In Formulas I and II, ring A is a carbocyclic or heterocyclic ring; ring B is an aromatic ring; X is NR', CR′R″, SiR′R″, O, S or Se; each of Z and Xto Xare carbon or nitrogen; R, R, R, R, R′, and R″ are each hydrogen or a substituent; Lis an unsubstituted or substituted phenyl pyridine bidentate ligand or its derivative; and Lis a bidentate ligand.