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    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    88.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 有权

    公开(公告)号：US20220085302A1

    公开(公告)日：2022-03-17

    申请号：US17404311

    申请日：2021-08-17

    Applicant: Universal Display Corporation

    Inventor： Zhiqiang JI ,  Pierre-Luc T. BOUDREAULT ,  Tongxiang LU ,  Wei-Chun SHIH ,  Bert ALLEYNE ,  Hsiao-Fan CHEN

    IPC: H01L51/00 ,  C09K11/06 ,  C09K11/02 ,  C07F15/00

    Abstract: A compound having a ligand LA of Formula I, is disclosed. In Formula I, ring B is a 5-membered or 6-membered ring; K is a direct bond, O, or S; X is O, S, Se, NR, CRR′, SiRR′, or GeRR′; R1 and R2 are each independently selected from a variety of substituents; each R, R′, RA, and RB is independently hydrogen or a substituent; LA is coordinated to a metal M selected from Os, Ir, Pd, Pt, Cu, Ag, or Au by the dashed lines; any two adjacent of R1, R2, R, R′, RA, or RB can be joined or fused to form a ring, with the proviso that when ring B is a 6-membered ring, two RB substituents are not joined to form a fused 6-membered aromatic ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    89.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 有权

    公开(公告)号：US20210098717A1

    公开(公告)日：2021-04-01

    申请号：US17022151

    申请日：2020-09-16

    Applicant: UNIVERSAL DISPLAY CORPORATION

    Inventor： Zhiqiang JI ,  Pierre-Luc T. BOUDREAULT ,  Wei-Chun SHIH ,  Walter YEAGER ,  Bert ALLEYNE

    IPC: H01L51/00 ,  C09K11/06 ,  C09K11/02 ,  C07F15/00

    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) both.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    90.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 有权

    公开(公告)号：US20250151607A1

    公开(公告)日：2025-05-08

    申请号：US18914321

    申请日：2024-10-14

    Applicant: Universal Display Corporation

    Inventor： Wei-Chun SHIH ,  Eric A. MARGULIES

    IPC: H10K85/30 ,  C09K11/02 ,  C09K11/06 ,  H10K50/12 ,  H10K50/852 ,  H10K85/60 ,  H10K101/20

    Abstract: An organic electroluminescent device (OLED) comprising an anode; a cathode; and an emissive region comprising a first emissive layer disposed between the anode and the cathode is provided. The OLED further comprises a microcavity structure, the first emissive layer comprises a first emitter, which is a phosphorescent emitter or a fluorescent emitter; the first emissive layer emits a first luminescent radiation when a voltage is applied across the OLED; the first emissive layer has a photoluminescent spectrum with a peak emission wavelength λmax, a first area T, and a second area M; the OLED has a luminance at normal incidence l0, and a luminance at 60 degrees from normal incidence l60; and one of the following conditions is true: the first emitter is a phosphorescent emitter where M/T ratio≥0.38 and l60/l0≥15%; or  (1) the first emitter is a fluorescent emitter where M/T ratio≥0.42 and l60/l0≥25%.  (2)

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