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    Organic electroluminescent materials and devices
    1.
    发明申请
    Organic electroluminescent materials and devices 审中-公开

    公开(公告)号：US20200347085A1

    公开(公告)日：2020-11-05

    申请号：US16854193

    申请日：2020-04-21

    Applicant: Universal Display Corporation

    Inventor： Scott BEERS ,  Woo-Young SO ,  Hsiao-Fan CHEN

    IPC: C07F15/00 ,  H01L27/32 ,  H01L51/00

    Abstract: A compound comprising a first ligand LA of Formula I or Formula II: wherein A1 and A2 are each independently C or Si; wherein each RA, and RB independently represents mono to the maximum allowable substitution, or no substitution; wherein each X1, X2, and X3 is independently C or N; wherein each R, R1, R2, R3, R4 and RA is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein LA is complexed to a metal M; wherein M is optionally coordinated to one or more other ligands; wherein the ligand LA is optionally linked with the one or more other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand; and wherein any two substituents are optionally joined or fused together to form a ring.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    3.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 有权

    公开(公告)号：US20220336758A1

    公开(公告)日：2022-10-20

    申请号：US17232764

    申请日：2021-04-16

    Applicant: Universal Display Corporation

    Inventor： BIN MA ,  Walter YEAGER ,  Edward BARRON ,  Alan DEANGELIS ,  Chuanjun XIA ,  Vadim ADAMOVICH ,  Scott BEERS ,  Harvey WENDT ,  Suman LAYEK

    IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06

    Abstract: A compound having the formula Ir(LA)n(LB)3-n is disclosed wherein LA is an aza-DBF ligand and LB is an alkyl-substituted phenylpyridine ligand, wherein the compound has a structure according to Formula I: wherein each of A1 to A8 comprise carbon or nitrogen; wherein at least one of A1 to A8 is nitrogen; wherein ring B is bonded to ring A through a C—C bond; wherein the iridium is bonded to ring A through a Ir—C bond; wherein X is O, S, or Se; wherein R′ and R″ each independently represent mono-, di-substitution, or no substitution; wherein any adjacent substitutions in R′, R″, R1, R2, R3, R4, R5, and R6 are optionally linked together to form a ring; wherein R1, R2, R′, and R″ are each independently selected from a variety of substituents; wherein R3, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof; wherein n is an integer from 1 to 3; and wherein total number of carbons in at least one of the pairs R3 and R4, and R5 and R6 is at least four.

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