Publication number: 20230303601
Abstract: Provided are compounds compound comprising a first ligand LA of Formula I: wherein R1 and R2 are each independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, germyl, boryl, selenyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein LA is coordinated to a metal M through the indicated dashed lines; wherein M may be coordinated to other ligands; wherein LA may be joined with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand; and wherein any two substituents may be joined or fused to form a ring. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.
Type:
Application
Filed:
December 1, 2022
Publication date:
September 28, 2023
Applicant:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Jui-Yi TSAI, Tongxiang LU, Alexey Borisovich DYATKIN, Maria L. BUIL, Maria BENITEZ, Miguel A. ESTERUELAS, Susana IZQUIERDO, Enrique OÑATE
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