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    Highly efficient OLED devices with very short decay times
    42.
    发明授权
    Highly efficient OLED devices with very short decay times 有权

    公开(公告)号：US11075346B2

    公开(公告)日：2021-07-27

    申请号：US16427388

    申请日：2019-05-31

    Applicant: UDC IRELAND LIMITED

    Inventor： Christian Lennartz ,  Stefan Metz ,  Korinna Dormann ,  Gerhard Wagenblast ,  Ute Heinemeyer ,  Hannah Mangold ,  Minlu Zhang ,  Thomas-Wesley Holcombe

    IPC: H01L51/00 ,  H01L51/50 ,  C09K11/06 ,  C09K11/02

    Abstract: The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a luminescent organometallic complex X having a difference of the singlet energy (ES1(X)) and the triplet energy (ET1(X)) of of ≤0.3 eV [Δ(ES1(X))−(ET1(X))≤0.3], 0.05 to 5.0% by weight of a fluorescent emitter Y and 55 to 97.95% by weight of a host compound(s), wherein the amount of the organometallic complex X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the luminescent organometallic complex X (ES1(X)) is greater than the singlet energy of the fluorescent emitter Y (ES1(Y)) [(ES1(X))>ES1(Y)]. By doping, for example, an emitting layer containing a luminescent organometallic complex having a small S1-T1 splitting, with a fluorescent emitter the emission decay time can significantly be shortened without sacrificing external quantum efficiency (EQE) because of very efficient energy transfer.

    Phenoxasiline based compounds for electronic application
    43.
    发明授权
    Phenoxasiline based compounds for electronic application 有权

    公开(公告)号：US11031559B2

    公开(公告)日：2021-06-08

    申请号：US16391608

    申请日：2019-04-23

    Applicant: UDC IRELAND LIMITED

    Inventor： Soichi Watanabe ,  Christian Lennartz ,  Gerhard Wagenblast ,  Nicolle Langer ,  Junji Kido ,  Hisahiro Sasabe ,  Masato Kimura

    IPC: H01L51/00 ,  C07F7/08 ,  C07F9/6596 ,  H01L51/52 ,  H01L51/50

    Abstract: Organic electronics applications, especially an organic light-emitting diode (OLED), an organic solar cell (organic photovoltaics) or a switching element such as an organic transistor, for example an organic FET (Field Effect Transistor) and an organic TFT (Thin Film Transistor), comprising at least one substituted phenoxasiline derivative, a organic semiconductor layer, a host material, electron/hole/exciton blocking material or electron/hole injection material comprising at least one substituted phenoxasiline derivative, the use of a substituted phenoxasiline derivative in organic electronics applications, an organic light-emitting diode, wherein at least one substituted phenoxasiline derivative is present in the electron/hole/exciton blocking layer, the electron/hole injection layer and/or the light-emitting layer, a light-emitting layer, an electron/hole/exciton blocking layer and an electron/hole injection layer comprising at least one substituted phenoxasiline derivative and a device selected from the group consisting of stationary visual display units, mobile visual display units; illumination units; keyboards; garments; furniture and wallpaper comprising at least one organic light-emitting diode, at least one light-emitting layer, at least one electron/hole/exciton blocking layer and/or at least one electron/hole injection layer according to the present invention.

    HIGHLY EFFICIENT OLED DEVICES WITH VERY SHORT DECAY TIMES
    47.
    发明申请
    HIGHLY EFFICIENT OLED DEVICES WITH VERY SHORT DECAY TIMES 审中-公开

    公开(公告)号：US20200044165A1

    公开(公告)日：2020-02-06

    申请号：US16427388

    申请日：2019-05-31

    Applicant: UDC IRELAND LIMITED

    Inventor： Christian Lennartz ,  Stefan Metz ,  Korinna Dormann ,  Gerhard Wagenblast ,  Ute Heinemeyer ,  Hannah Mangold ,  Minlu Zhang ,  Thomas-Wesley Holcombe

    IPC: H01L51/00 ,  H01L51/50 ,  C09K11/06 ,  C09K11/02

    Abstract: The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a luminescent organometallic complex X having a difference of the singlet energy (ES1(X)) and the triplet energy (ET1(X)) of of ≤0.3 eV [Δ(ES1(X))−(ET1(X))≤0.3], 0.05 to 5.0% by weight of a fluorescent emitter Y and 55 to 97.95% by weight of a host compound(s), wherein the amount of the organometallic complex X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the luminescent organometallic complex X (ES1(X)) is greater than the singlet energy of the fluorescent emitter Y (ES1(Y)) [(ES1(X))>ES1(Y)]. By doping, for example, an emitting layer containing a luminescent organometallic complex having a small S1-T1 splitting, with a fluorescent emitter the emission decay time can significantly be shortened without sacrificing external quantum efficiency (EQE) because of very efficient energy transfer.

    Charge Transporting Material, Organic Electroluminescent Element, Light Emitting Device, Display Device And Illumination Device
    49.
    发明申请
    Charge Transporting Material, Organic Electroluminescent Element, Light Emitting Device, Display Device And Illumination Device 审中-公开

    公开(公告)号：US20190334098A1

    公开(公告)日：2019-10-31

    申请号：US16504586

    申请日：2019-07-08

    Applicant: UDC IRELAND LIMITED

    Inventor： Kousuke Watanabe

    IPC: H01L51/00 ,  C07D471/06 ,  H05B33/14

    Abstract: [Problem] To provide a charge transporting material which allows for a low driving voltage and is superior in luminous efficiency and durability.[Means for resolution] A charge transporting material comprising a compound represented by any one of the general formula (1-1) to (1-3) wherein R111 to R114, R121 to R125 and R131 to R135 represent a hydrogen atom or a substituent; L111 to L113 represent O, S, a single bond, CR511R512, or NR513 in which R511, R512, and R513 represent a hydrogen atom or a substituent; L121 to L123 represent a single bond or a divalent linking group, and when neither of R323 and R333 are an aryl group, then L121 to L123 represent a group containing a biphenyl skeleton having at least one p-phenylene group; Ar111 to Ar113 represent a substituent represented by any one of the general formulae (3-1) to (3-3); * represents a binding position to L121 to L123; R311, R312, R321 to R325 and R331 to R335 represent a hydrogen atom or a substituent; provided that when L121 to L123 in the general formulae (1-1) to (1-3) each are not a group containing a biphenyl skeleton having a p-phenylene group, either one of R323 and R333 is an aryl group.

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