Patent number: 12167678
Abstract: A compound of Formula I: wherein: X1-X8 are each independently C or N, wherein two adjacent X1-X8 are carbon-fused to a structure of Formula II: X9-X12 are each independently C or N; A1, A2, and A3 are each independently selected from the group consisting of O, S, Se, N, NR, CR, CRR?, SiR, SiRR?, GeR, and GeRR?, with at least one of A1 and A2 being N or NR; each occurrence of is independently a single bond or a double bond, wherein one occurrence of is a single bond and one occurrence of is a double bond; each of RA, RB, and RC independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each of occurrence R, R?, RA, RB, and RC is independently a hydrogen or a substituent selected from the group consisting of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, Formula IX, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, a
Type:
Grant
Filed:
December 13, 2022
Date of Patent:
December 10, 2024
Inventors:
Tyler Fleetham, Peter Wolohan
Publication number: 20240349591
Abstract: A compound having a formula of Ir(LA)n(LB)m(LC)o, wherein first ligand LA comprises a structure of Formula I, LB comprises a structure of Formula IIA, or Formula IIB, and LC is a bidentate ligand. In these structures, n is 1 or 2, m is 1 or 2, o is 0 or 1, and m+n+o=3; each of moiety A, moiety D, and moiety F is a monocyclic ring or polycyclic fused ring system; moiety B is a polycyclic fused ring system; each of Z1 to Z6 and X1 to X7 is C or N; Y1 is O, S, Se, Te, P, Si, and Ge; and each RA, RB, RC, RD, RE, and RF is hydrogen or a General Substituent. Formulations, OLEDs, and consumer products containing the compound are also provided.
Type:
Application
Filed:
May 17, 2024
Publication date:
October 17, 2024
Applicant:
Universal Display Corporation
Inventors:
Wei-Chun SHIH, Alexey Borisovich DYATKIN, Harvey WENDT, Walter YEAGER, Marcus COLE, Tyler FLEETHAM, Pierre-Luc T. BOUDREAULT, Zhiqiang JI