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    Organic electroluminescent materials and devices
    16.
    发明授权
    Organic electroluminescent materials and devices 有权

    公开(公告)号：US11963441B2

    公开(公告)日：2024-04-16

    申请号：US16199504

    申请日：2018-11-26

    Applicant: Universal Display Corporation

    Inventor： Peter Wolohan

    IPC: C07D519/00 ,  C09K11/06 ,  H01L51/00 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

    CPC classification number: H10K85/6572 ,  C07D519/00 ,  C09K11/06 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40

    Abstract: A compound of Formula I






    wherein X1 to X8 are independently selected from C or N, and Y is selected from the group consisting of NR2, O, S, Se, CR3R4, SiR3R4, and GeR3R4. RA and RB represent mono to the maximum allowable substitution, or no substitution. The compounds of Formula I will also have at least one of RA, RB, R1, R2, R3, or R4 that comprises a structure selected from the group consisting of formula A, formula B, and formula C as described herein. In n the structures of formula A, formula B, or formula C, Z is selected from the group consisting of NR5, O, S, Se, CR6R7, SiR6R7, and GeR6R7; wherein R5 is a substituent selected from the group consisting of deuterium, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof; or optionally, R5 is an aromatic linker that connects the structure of formula A to Formula I, or the structure of formula C to Formula I. In formulae A, B, and C, X9 to X41 are independently selected from C or N; where in formula B, at least one of X17 to X33 is N; and in formula C, at least one of X34 to X41 is N. The substituents RC, RD, RE, RF, RG, RH, RI, and RJ represent mono to the maximum allowable substitution, or no substitution.

    Host materials for electroluminescent devices
    20.
    发明授权
    Host materials for electroluminescent devices 有权

    公开(公告)号：US11515489B2

    公开(公告)日：2022-11-29

    申请号：US16683507

    申请日：2019-11-14

    Applicant: UNIVERSAL DISPLAY CORPORATION

    Inventor： Peter Wolohan ,  Tyler Fleetham ,  Jason Brooks ,  Rasha Hamze ,  Nicholas J. Thompson

    IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  C07D403/14 ,  C07D487/04 ,  H01L51/50

    Abstract: A compound of Formula I: wherein ring A is a 5-membered or 6-membered aromatic ring; wherein RA, RB, and RC each independently represent mono to the maximum allowable substitution, or no substitution; wherein Y1 is absent or present, and when present is selected from the group consisting of a direct bond, O, S, Se, CRR′, NR, SiRR′, and BR; wherein each X1-X3 is N or CR; wherein at least one of X1-X3 is N; wherein each A1-A5 is independently C or N; wherein the maximum number of N atoms that can connect to each other within each ring is two; wherein each R1, R2, R3, and R4 is independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof; wherein each R, R′, RA, RB, 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 may be joined or fused together to form a ring.

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