Publication number: 20230284516
Abstract: A compound comprising a first ligand LA of Formula I, is provided. In addition, C1 and C2 are joined to a structure of Formula II, In the first ligand, C1 and C2 are carbon atoms; K is selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); each of Y1 and Y2 is O, S, Se, NR, CR?R?, SiR?R?, GeR?R?, BR?, BR?R?, or PR?; Z is selected from the group consisting of N, CR?, SiR?, and GeR?; moiety B is a monocyclic ring or a fused polycyclic ring structure; each R?, R?, RA, RB, R, R?, and R? is hydrogen or a General Substituent; the first ligand is coordinated to a metal M; and any two of RA, RB, R, R? and R? can be joined or fused to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.
Type:
Application
Filed:
February 1, 2023
Publication date:
September 7, 2023
Applicant:
Universal Display Corporation
Inventors:
Alexey Borisovich DYATKIN, Hsiao-Fan CHEN, Jui-Yi TSAI, Zhiqiang JI, Wei-Chun SHIH, Pierre-Luc T. BOUDREAULT
Publication number: 20230180594
Abstract: A compound including a first ligand LA of Formula I, is provided. In Formula I, rings A, B, C, and D are each a 5-membered or 6-membered ring; L1 is selected from CR, SiR, GeR, N, or B; L2 is selected from CRR?, SiRR?, GeRR?, NR, O, S, Se, or C?X; X is CRR?, O, or S; each of Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8, and Z9 is independently C or N; each R, R?, RA, RB, RC, and RD is independently hydrogen or a General Substituent; LA is coordinated to a metal M through the indicated dashed lines; metal M may be coordinated to other ligands; and any two adjacent R, R?, RA, RB, RC, and RD may be joined or fused to form a ring. Formulations, OLEDs, and consumer products including the compound are also provided.
Type:
Application
Filed:
November 3, 2022
Publication date:
June 8, 2023
Applicant:
Universal Display Corporation
Inventors:
Jui-Yi TSAI, Geza SZIGETHY, Tongxiang LU, Alexey Borisovich DYATKIN, Llorenç BENAVENT, Miguel A. ESTERUELAS, Ana M. LOPEZ, Enrique OÑATE