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    ORGANIC SEMICONDUCTOR ELEMENT, ORGANIC EL ELEMENT, AND PHOTODIODE
    51.
    发明公开
    ORGANIC SEMICONDUCTOR ELEMENT, ORGANIC EL ELEMENT, AND PHOTODIODE 审中-公开

    公开(公告)号：US20230171985A1

    公开(公告)日：2023-06-01

    申请号：US17990794

    申请日：2022-11-21

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Hiromi SEO ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC: H01L29/08

    CPC classification number: H01L51/5064 ,  H01L51/508 ,  H01L27/3248 ,  H01L27/3227

    Abstract: An organic semiconductor element with low driving voltage is provided. The organic semiconductor element includes a first electrode, a second electrode, and a hole-transport layer and an active layer between the first electrode and the second electrode. The hole-transport layer includes a first hole-transport layer and a second hole-transport layer. The first hole-transport layer is closer to the substrate than the second hole-transport layer is. The first hole-transport layer and the second hole-transport layer are in contact with each other. A value obtained by subtracting GSP_slope (mV/nm) of the second hole-transport layer from GSP_slope (mV/nm) of the first hole-transport layer is less than or equal to 10 (mV/nm). Note that GSP_slope (mV/nm) is a parameter represented by V/d when surface potential and thickness of a film are V (mV) and d (nm), respectively.

    ORGANIC COMPOUND, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    52.
    发明申请
    ORGANIC COMPOUND, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE 有权

    公开(公告)号：US20220348534A1

    公开(公告)日：2022-11-03

    申请号：US17706887

    申请日：2022-03-29

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Tomohiro KUBOTA ,  Takao TOSU ,  Takeyoshi WATABE ,  Airi UEDA ,  Yuta KAWANO ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC: C07C211/61 ,  H01L51/00

    Abstract: An organic compound having a hole-transport property and a low refractive index is provided. An organic compound represented by General Formula (G1) is provided. In the formula, Ar12 represents an aryl group having 6 to 10 carbon atoms in a ring and includes at least one branched-chain or cyclic alkyl group having 3 to 12 carbon atoms. The total number of carbon atoms of the branched-chain or cyclic alkyl group having 3 to 12 carbon atoms in Ar12 is 6 to 36. Ar11 and Ar21 each represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring. Ar22 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring. In addition, n and m each independently represent an integer of 0 or 1. Ar1 represents a phenyl group including at least one alkyl group having 1 to 6 carbon atoms. Ar2 represents a phenyl group including at least one alkyl group having 1 to 6 carbon atoms, or an alkyl group having 1 to 4 carbon atoms.

    Light-Emitting Apparatus, Lighting Device, Display Device, Module, and Electronic Device
    53.
    发明申请
    Light-Emitting Apparatus, Lighting Device, Display Device, Module, and Electronic Device 有权

    公开(公告)号：US20220069025A1

    公开(公告)日：2022-03-03

    申请号：US17414502

    申请日：2019-12-19

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Shunpei YAMAZAKI ,  Daisuke KUBOTA ,  Nobuharu OHSAWA ,  Takeyoshi WATABE ,  Taisuke KAMADA

    IPC: H01L27/32 ,  H01L51/52

    Abstract: A display device that has a function of emitting visible light and infrared light and a function of detecting light. The display device is a display device including a first light-emitting device, a second light-emitting device, and a light-receiving device, in a display portion. The first light-emitting device includes a first pixel electrode, a first optical adjustment layer, a first light-emitting layer, a second light-emitting layer, and a common electrode. The second light-emitting device includes a second pixel electrode, a second optical adjustment layer, the first light-emitting layer, the second light-emitting layer, and the common electrode. The light-receiving device includes a third pixel electrode, an active layer, and the common electrode. The active layer includes an organic compound. The first light-emitting device emits infrared light emitted by the first light-emitting layer. The second light-emitting device emits visible light emitted by the second light-emitting layer. The light-receiving device has a function of absorbing at least part of visible light and infrared light.

    Light-Emitting Element, Display Device, Electronic Device, and Lighting Device
    55.
    发明申请
    Light-Emitting Element, Display Device, Electronic Device, and Lighting Device 有权

    公开(公告)号：US20210159440A1

    公开(公告)日：2021-05-27

    申请号：US17161982

    申请日：2021-01-29

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satomi MITSUMORI ,  Takeyoshi WATABE ,  Satoshi SEO ,  Yuko KUBOTA

    IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.

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