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    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    42.
    发明公开
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 审中-公开

    公开(公告)号：US20240306409A1

    公开(公告)日：2024-09-12

    申请号：US18650802

    申请日：2024-04-30

    Applicant: UNIVERSAL DISPLAY CORPORATION

    Inventor： Chun LIN ,  Tyler Fleetham ,  Michael S. Weaver

    IPC: H10K50/11 ,  H10K101/00 ,  H10K101/10

    CPC classification number: H10K50/11 ,  H10K2101/10 ,  H10K2101/27

    Abstract: Provided is an OLED that includes in its emissive region a first compound, a second compound, and a third compound, where the first compound is capable of functioning as a phosphorescent emitter in an OLED at room temperature, the second compound meets at least one of the following conditions:



    (1) the second compound is capable of functioning as a TADF emitter in an OLED at room temperature; and
    (2) the second compound is capable of forming an exciplex with the first compound in an OLED at room temperature, and the third compound is a fluorescent compound that functions as an emitter in the OLED of the present disclosure at room temperature.

    Organic Electroluminescent Materials and Devices
    50.
    发明申请
    Organic Electroluminescent Materials and Devices 审中-公开

    公开(公告)号：US20200270262A1

    公开(公告)日：2020-08-27

    申请号：US16786483

    申请日：2020-02-10

    Applicant: Universal Display Corporation

    Inventor： Tyler Fleetham ,  Peter WOLOHAN

    IPC: C07D487/14 ,  C07F7/08 ,  C07F5/02 ,  H01L51/00 ,  C07D493/14 ,  C07D495/14 ,  C07D493/22

    Abstract: A compound of Formula I: wherein: X1-X8 are each independently C or N, wherein two adjacent X1-X8 are carbon-fused to a structure of Formula II: X9-X12 are each independently C or N; A1, A2, and A3 are each independently selected from the group consisting of O, S, Se, N, NR, CR, CRR′, SiR, SiRR′, GeR, and GeRR′, with at least one of A1 and A2 being N or NR; each occurrence of is independently a single bond or a double bond, wherein one occurrence of is a single bond and one occurrence of is a double bond; each of RA, RB, and Rc independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each of occurrence R, R′, RA, RB, and RC is independently a hydrogen or a substituent selected from the group consisting of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, Formula IX, 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, with at least one of R, R′, RA, RB, and RC comprising a group of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, or Formula IX: each occurrence of Y1, Y2, and Y3 is independently absent, O, S, Se, NR, CRR′, SiRR′, or GeRR′; each occurrence of Ar1, and Ar2 is independently an optionally substituted aryl group or an optionally substituted heteroaryl group, wherein Ar1 and Ar2 are optionally joined or fused together to form a ring; each occurrence of X13-X20 is independently C or N, with the proviso that at least one of X13-X20 is N; each occurrence of A4 is selected from the group consisting of O, S, Se, NR, CRR′, SiRR′, and GeRR′; each occurrence of RX independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each occurrence of RX 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; each occurrence of RY is independently a hydrogen or a substituent selected from the group consisting of Formula III, Formula IV, Formula V, Formula VI, Formula IX, 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; the maximum number of N atoms that are connected to each other within a ring is two; and any two substituents are optionally joined or fused together to form a ring.

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