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    Compound and method for producing same
    3.
    发明授权
    Compound and method for producing same 有权

    公开(公告)号：US11046655B2

    公开(公告)日：2021-06-29

    申请号：US16089485

    申请日：2017-03-21

    Applicant: Sumitomo Chemical Company, Limited ,  Cambridge Display Technology Limited

    Inventor： Satoshi Kobayashi ,  Takayuki Iijima ,  Nobuhiko Akino ,  Sheena Zuberi

    IPC: C07D235/18 ,  H01L51/50

    Abstract: A compound represented by the formula (1) is provided: wherein A1 represents an oxygen atom, a sulfur atom, —NR5— or —PR5—; at least one A1 is —NR5— or —PR5—; R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylsulfenyl group, a cycloalkylsulfenyl group, an arylsulfenyl group or a disubstituted amino group; R2 and R3 represent an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylsulfenyl group, a cycloalkylsulfenyl group, an arylsulfenyl group, a monovalent heterocyclic group, a halogen atom or a disubstituted amino group; R4 represents a hydrogen atom, —C(R6)3, —OR7, —N(R7)2 or —Si(R7)3; m represents an integer of 0 to 3; and n represents an integer of 0 to 4.

    LIGHT-EMITTING COMPOUND
    6.
    发明申请
    LIGHT-EMITTING COMPOUND 审中-公开

    公开(公告)号：US20200270290A1

    公开(公告)日：2020-08-27

    申请号：US16063662

    申请日：2016-12-15

    Applicant: Cambridge Display Technology Limited ,  Sumitomo Chemical Company Limited

    Inventor： Kiran Kamtekar ,  Natasha Conway ,  William Tarran

    IPC: C07F15/00 ,  H01L51/00

    Abstract: A compound of formula (I): wherein M is a transition metal; x is at least 1; z is 0 or a positive integer; L1 is a ligand selected from one of ligands (II-A), (II-B); L2 is a ligand selected from another of ligands of formulae (II-A), (II-B) and (II-C); and L3 is a ligand other than a ligand of formulae (II-A), (II-B) or (II-C): (II-A) (II-B) (II-C) in which each of R1-R6 is substituent and Ar1-Ar3 are each an unsubstituted or substituted aryl or heteroaryl group. The compound of formula (I) may be used as a phosphorescent light-emitting material of an organic light-emitting device.

    ORGANIC MICROCAVITY PHOTODETECTORS WITH NARROW AND TUNABLE SPECTRAL RESPONSE
    7.
    发明申请
    ORGANIC MICROCAVITY PHOTODETECTORS WITH NARROW AND TUNABLE SPECTRAL RESPONSE 审中-公开

    公开(公告)号：US20200227642A1

    公开(公告)日：2020-07-16

    申请号：US16337329

    申请日：2017-09-07

    Applicant: Cambridge Display Technology Limited ,  Sumitomo Chemical Company Limited

    Inventor： Nir Yaacobi-Gross

    IPC: H01L51/00

    Abstract: An organic photodetector (OPD) comprises a microcavity defined by a reflective electrode and a semi-transparent electrode, wherein the microcavity comprises a transparent conductive oxide layer and an active layer comprising an n-type organic semiconductor and a p-type organic semiconductor, and wherein the blend of the n-type organic semiconductor and the p-type organic semiconductor exhibits low absorption at the resonance wavelength, which results in an excellent optical sensitivity in a favorably narrow wavelength region and allows to tune the response to different wavelengths depending on the desired application. In addition, methods of producing such organic photodetectors and methods of tuning the resonance of a microcavity formed in an organic photodetector (OPD) to a predetermined wavelength are provided.

    Doping organic semiconductors
    8.
    发明授权
    Doping organic semiconductors 有权

    公开(公告)号：US10559753B2

    公开(公告)日：2020-02-11

    申请号：US15508619

    申请日：2015-08-27

    Applicant: Cambridge Display Technology Limited

    Inventor： Jeremy Burroughes ,  Christopher Newsome ,  Daniel Tobjörk ,  Mark Dowling

    IPC: H01L51/00 ,  H01L51/10 ,  H01L51/05 ,  H01L27/28

    Abstract: We describe a method for reducing a parasitic resistance at an interface between a conducting electrode region and an organic semiconductor in a thin film transistor, the method comprising: providing a solution comprising a dopant for doping said semiconductor, and depositing said solution onto said semiconductor and/or said conducting electrode region to selectively dope said semiconductor adjacent said interface between said conducting electrode region and said semiconductor, wherein depositing said solution comprises inkjet-printing said solution.

    Organic light emitting device
    9.
    发明授权
    Organic light emitting device 有权

    公开(公告)号：US10529945B2

    公开(公告)日：2020-01-07

    申请号：US15515734

    申请日：2015-09-25

    Applicant: Cambridge Display Technology Limited ,  Sumitomo Chemical Company Limited

    Inventor： Robert Archer ,  Simon King

    IPC: H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  C08G61/12

    Abstract: An organic light-emitting device (100) comprising an anode (103); a cathode (109); a light-emitting layer (107) between the anode and the cathode; a first hole-transporting layer (105A) comprising a first conjugated hole-transporting polymer between the anode and the light-emitting layer; and a second hole-transporting layer (105B) comprising a second conjugated hole-transporting polymer between the first hole-transporting layer and the light-emitting layer, wherein a lowest excited state energy level of the first hole-transporting polymer is lower than the lowest excited state energy of the second hole-transporting polymer.

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