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    HIGHLY EFFICIENT OLED DEVICES WITH VERY SHORT DECAY TIMES
    2.
    发明申请
    HIGHLY EFFICIENT OLED DEVICES WITH VERY SHORT DECAY TIMES 有权

    公开(公告)号：US20220149300A1

    公开(公告)日：2022-05-12

    申请号：US17365150

    申请日：2021-07-01

    申请人： UDC IRELAND LIMITED

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

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

    摘要： 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 triplet emitter X having a difference of the singlet energy (ES1(X)) and the triplet energy (ET1(X)) of less than or equal to 0.4 eV [Δ(ES1(X))−(ET1(X))≤0.4 eV], 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 triplet emitter 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 triplet emitter 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.

    Azabenzimidazole carbene complexes as efficiency booster in OLEDs
    9.
    发明授权
    Azabenzimidazole carbene complexes as efficiency booster in OLEDs 有权

    公开(公告)号：US10374172B2

    公开(公告)日：2019-08-06

    申请号：US14778174

    申请日：2014-03-19

    申请人： UDC Ireland Limited

    发明人： Stefan Metz ,  Soichi Watanabe ,  Thomas Geßner ,  Korinna Dormann ,  Peter Murer ,  Christian Lennartz ,  Ute Heinemeyer ,  Glauco Battagliarin

    IPC分类号： H01L51/54 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  C07F15/00 ,  H05B33/10

    摘要： An organic electronic device comprising at least one hole-transport material and/or at least one electron/exciton blocker material, wherein said at least one hole-transport material and/or said at least one electron/exciton blocker material is an Ir metal-carbene complex comprising one, two or three specific bidentate azabenzimidazole ligands; a hole transport layer or an electron/exciton blocking layer, comprising at least one Ir metal-carbene complex, comprising one, two or three specific bidentate azabenzimidazole ligands; an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in furniture and units in wallpaper, comprising the organic electronic device of the present invention or the hole transport layer or the electron/exciton blocking layer of the present invention; and the use of an Ir metal-carbene complex comprising one, two or three specific bidentate azabenzimidazole ligands according to the present invention as hole-transport material and/or electron/exciton blocker material.

    ORGANIC ELECTROLUMINESCENCE DEVICE
    10.
    发明申请
    ORGANIC ELECTROLUMINESCENCE DEVICE 审中-公开

    公开(公告)号：US20190169097A1

    公开(公告)日：2019-06-06

    申请号：US16267714

    申请日：2019-02-05

    申请人： UDC IRELAND LIMITED

    发明人： Tetsu Kitamura ,  Toru Watanabe ,  Toshihiro Ise

    IPC分类号： C07C15/28 ,  C07D209/86 ,  H01L51/00 ,  H05B33/14 ,  C07C15/38 ,  C09K11/06

    摘要： Provided is an organic electroluminescence device including a pair of electrodes composed of an anode and a cathode, a light emitting layer between the electrodes and an organic layer which is adjacent to the light emitting layer between the light emitting layer and the cathode, on a substrate, the light emitting layer contains at least one compound having a carbazole structure and the organic layer adjacent to the light emitting layer contains at least one hydrocarbon compound which is composed only of carbon atoms and hydrogen atoms, has a molecular weight in a range of 400 to 1,200, and contains a condensed polycyclic structure with a total carbon number of 13 to 22.