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    Organic electroluminescent materials and devices
    42.
    发明授权
    Organic electroluminescent materials and devices 有权

    公开(公告)号：US11746122B2

    公开(公告)日：2023-09-05

    申请号：US17573237

    申请日：2022-01-11

    申请人： UNIVERSAL DISPLAY CORPORATION

    发明人： Jui-Yi Tsai ,  Alexey Borisovich Dyatkin ,  Zhiqiang Ji ,  Walter Yeager ,  Pierre-Luc T. Boudreault

    IPC分类号： C07F15/00 ,  H10K85/30

    CPC分类号： C07F15/0033 ,  H10K85/342

    摘要： A compound including a first ligand LX of Formula II




    is disclosed, where F is a 5-membered or 6-membered carbocyclic or heterocyclic ring; each RF and RG independently represents mono to the maximum possible number of substitutions, or no substitution; Z3 and Z4 are each independently C or N and coordinated to a metal M to form a 5-membered chelate ring; G is a fused ring structure comprising five or more fused heterocyclic or carbocyclic rings, of which one or two rings are of Formula III





    the fused heterocyclic or carbocyclic rings in the fused ring structure G are 5-membered or 6-membered; of which if two or more 5-membered rings are present, at least two of the 5-membered rings are fused to one another; Y can be one of BR′, NR′, PR′, O, S, Se, C═O, S═O, SO2, CR′R″, SiR′R″, and GeR′R″; the metal M can be coordinated to other ligands; and the ligand LX can be linked with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    50.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 有权

    公开(公告)号：US20220402954A1

    公开(公告)日：2022-12-22

    申请号：US17380518

    申请日：2021-07-20

    申请人： UNIVERSAL DISPLAY CORPORATION

    发明人： Wei-Chun SHIH ,  Zhiqiang Ji ,  Pierre-Luc T. Boudreault ,  Walter YEAGER ,  Bert ALLEYNE ,  Derek WOZNIAK ,  James FIORDELISO

    IPC分类号： C07F15/00 ,  H01L51/00

    摘要： A compound including a first ligand LA of Formula I, is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X1, X2, and X3 are each CRA or N; R is a 5- or 6-membered carbocyclic or heterocyclic ring, which can be further fused or substituted; and (1) when ring B is an unfused 6-membered ring, X1 and X2 are N, and X3 is C; and (2) when ring B is a fused 6-membered ring, ring B has the structure of Formula II, In this structure, the wavy line indicates the point of connection to ring A; Q1 to Q6 are each C or N; and, when proviso (2) applies, (I) at least one of X1, X2, and X3 is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) at least ring A or R is substituted with a partially or fully deuterated alkyl or partially or fully deuterated cycloalkyl group.