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    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    16.
    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

    Applicant: UNIVERSAL DISPLAY CORPORATION

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

    IPC: C07F15/00 ,  H01L51/00

    Abstract: 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.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    17.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 有权

    公开(公告)号：US20220275013A1

    公开(公告)日：2022-09-01

    申请号：US17669864

    申请日：2022-02-11

    Applicant: UNIVERSAL DISPLAY CORPORATION

    Inventor： Zhiqiang JI ,  Pierre-Luc T. BOUDREAULT ,  Wei-Chun SHIH ,  Derek Ian WOZNIAK ,  Chun LIN ,  James FIORDELISO

    IPC: C07F15/00 ,  H01L51/00

    Abstract: A compound including ligand LA of Formula I, where LA includes at least one deuterium atom is provided. In Formula I, moiety A and B are monocyclic rings or polycyclic fused rings; K1 and K2 are direct bond, O, or S; and either (1) two RA or two RB substituents are joined together to form a fused ring structure of Formula II, where Formula II is joined to ring A or ring B, respectively, by the dashed lines, and Y is Se or GeR′R″; or (2) at least one RA or RB comprises a structure of Formula III, and Y is Se or GeR′R″; where Formula III is not fused to either of ring A or ring B. Formulations, OLEDs, and consumer products including the compound are also provided.

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