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    Host materials for electroluminescent devices
    81.
    发明授权
    Host materials for electroluminescent devices 有权

    公开(公告)号：US11834459B2

    公开(公告)日：2023-12-05

    申请号：US16682126

    申请日：2019-11-13

    Applicant: Universal Display Corporation

    Inventor： Tyler Fleetham ,  Peter Wolohan ,  Hsiao-Fan Chen

    IPC: C07D495/04 ,  C07D519/00 ,  H01L51/00 ,  C07D491/048 ,  H10K85/60 ,  H10K50/11 ,  H10K50/81 ,  H10K50/82 ,  H10K101/10

    CPC classification number: C07D495/04 ,  C07D519/00 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6572 ,  H10K50/11 ,  H10K50/81 ,  H10K50/82 ,  H10K2101/10

    Abstract: A compound of Formula I






    wherein
    X1 and X2 are independently CRX or N, and at least one of X1 or X2 is CRX;
    Y is selected from the group consisting of O, S, Se, NR′, BR′, CR′R″, and SiR′R″;
    R′, and R″ are each independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof;
    R is selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
    RA, and RC each independently represent mono to the maximum allowable substitution, or no substitution; and
    each RX, RA, and RC is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof, and wherein any two substituents RX, RA, and RC may be optionally joined to form a ring, with the proviso that R does not join with RA to form a ring.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    88.
    发明公开
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 审中-公开

    公开(公告)号：US20230363252A1

    公开(公告)日：2023-11-09

    申请号：US18352064

    申请日：2023-07-13

    Applicant: UNIVERSAL DISPLAY CORPORATION

    Inventor： Pierre-Luc T. BOUDREAULT ,  Bert ALLEYNE ,  Zhiqiang JI

    IPC: H10K85/30 ,  C07F15/00 ,  C09K11/06

    CPC classification number: H10K85/342 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/185 ,  C09K2211/1037 ,  C09K2211/1011 ,  H10K50/11

    Abstract: A novel compound is disclosed which includes a ligand LA of Formula II,




    wherein:



    ring B is independently a 5-membered or 6-membered carbocyclic or heterocyclic ring;
    X1 to X4 are each independently selected from the group consisting of C, N, and CR;
    at least two adjacent ones of X1, X2, X3, and X4 are CR and fused into a five or six-membered aromatic ring R3 represents zero, mono, or up to a maximum allowed substitutions to its associated ring;
    each R, R1, and R3 is independently hydrogen or a General Substituent defined herein; R2 is a General Substituent defined herein; and two substituents can be joined or fused to form a ring; the ligand LA is complexed to a metal M through the two indicated dash lines of each Formula; and the ligand LA can be joined with other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand.

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