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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.

    Organic electroluminescent element
    6.
    发明授权
    Organic electroluminescent element 有权

    公开(公告)号：US10431749B2

    公开(公告)日：2019-10-01

    申请号：US13809080

    申请日：2011-07-08

    申请人： Kuniyuki Kaminaga ,  Toshihiro Ise

    发明人： Kuniyuki Kaminaga ,  Toshihiro Ise

    IPC分类号： H01L51/50 ,  H01L51/00 ,  C07D235/06 ,  C07D235/08 ,  C07D401/14 ,  C07D403/10 ,  C07D403/14 ,  C09K11/06

    摘要： Disclosed is an organic electroluminescent element which is excellent with respect to luminous efficiency and driving voltage and rarely undergoes initial luminance drop. Specifically disclosed is an organic electroluminescent element which comprises, on a substrate, a pair of electrodes composed of an anode and a cathode and a light-emitting layer arranged between the electrodes, and additionally comprises at least one organic layer arranged between the light-emitting layer and the cathode, where in the light-emitting layer contains, for example, a compound (A-1), and the at least one layer arranged between the light-emitting layer and the cathode contains, for example, a compound (e-4).

    Organic electroluminescence element
    7.
    发明授权
    Organic electroluminescence element 有权

    公开(公告)号：US10428268B2

    公开(公告)日：2019-10-01

    申请号：US13522126

    申请日：2010-12-28

    申请人： Toshihiro Ise ,  Tetsu Kitamura ,  Toru Watanabe

    发明人： Toshihiro Ise ,  Tetsu Kitamura ,  Toru Watanabe

    IPC分类号： H01L51/50 ,  C09K11/06 ,  H01L51/00 ,  H05B33/14 ,  C07F15/00

    摘要： A light emitting organic thin film including at least one compound represented by Formula (PQ-1) and at least one compound represented by Formula (BN-1). In Formula (PQ-1), each of Ra, Rb and Rc independently represents a hydrogen atom or an alkyl group, wherein any one of Ra, Rb and Rc represents a hydrogen atom and the remaining two represent an alkyl group. Each of R1 to R5 independently represents a hydrogen atom, an alkyl group, an aryl group, a fluorine atom or a cyano group. Each of Rx and Ry independently represents an alkyl group or a phenyl group. In Formula (BN-1), Ar1 represents an arylene group that may have a substituent Z. Ar2 represents a condensed hydrocarbyl group that may have a substituent Z. Each of R101 to R113 independently represents a phenyl group, or the like.

    Azabenzimidazole carbene complexes as efficiency booster in OLEDs
    10.
    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.