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    Light-Emitting Device
    93.
    发明公开
    Light-Emitting Device 审中-公开

    公开(公告)号：US20240206220A1

    公开(公告)日：2024-06-20

    申请号：US18521306

    申请日：2023-11-28

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takeyoshi WATABE ,  Nobuharu Ohsawa ,  Hiromi Seo

    IPC: H10K50/16 ,  H10K50/19

    CPC classification number: H10K50/16 ,  H10K50/19 ,  H10K2101/30

    Abstract: A tandem light-emitting device that can be used in a high-resolution display apparatus is provided. The light-emitting device includes a first electrode, a second electrode, and an organic compound layer. The organic compound layer is positioned between the first electrode and the second electrode; the organic compound layer includes a first light-emitting unit, a second light-emitting unit, and an intermediate layer; the intermediate layer is positioned between the first light-emitting unit and the second light-emitting unit; the first light-emitting unit is positioned between the first electrode and the intermediate layer; the first light-emitting unit includes a first light-emitting layer and a first electron-transport layer; the first electron-transport layer is in contact with the intermediate layer; the intermediate layer is configured to block holes moving from the first electrode side to the second electrode side; and the first electron-transport layer is a layer having a bipolar property.

    Light-Emitting Device
    94.
    发明公开
    Light-Emitting Device 审中-公开

    公开(公告)号：US20240196641A1

    公开(公告)日：2024-06-13

    申请号：US18521096

    申请日：2023-11-28

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

    IPC: H10K50/19

    CPC classification number: H10K50/19 ,  H10K2101/30

    Abstract: The light-emitting device includes a first electrode, a second electrode, and an organic compound layer between the first electrode and the second electrode. The organic compound layer includes a first light-emitting unit, an intermediate layer, and a second light-emitting unit in this order from the first electrode side. The first light-emitting unit includes a first light-emitting layer, and the second light-emitting unit includes a second light-emitting layer. The intermediate layer includes a first layer, a second layer, and a third layer in this order from the first electrode side, with the second layer being in contact with the first layer and the third layer. The spin density of the first layer is lower than or equal to 1×1017 spins/cm3. The LUMO level of a material included in the second layer is greater than or equal to −4.30 eV and less than or equal to −3.00 eV.

    ORGANIC COMPOUND, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, AND ELECTRONIC DEVICE
    95.
    发明公开
    ORGANIC COMPOUND, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20230348477A1

    公开(公告)日：2023-11-02

    申请号：US18305733

    申请日：2023-04-24

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Masatoshi TAKABATAKE ,  Yui YOSHIYASU ,  Sachiko KAWAKAMI ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Yuko KUBOTA

    IPC: C07D487/04 ,  H10K85/60 ,  H10K50/17

    CPC classification number: C07D487/04 ,  H10K50/171 ,  H10K85/626 ,  H10K85/6572

    Abstract: An electron-injection organic compound with low solubility in water is provided. An organic compound represented by General Formula (G1) is provided. In the organic compound, Ar represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms forming a ring or a substituted or unsubstituted heteroaromatic hydrocarbon group having 2 to 30 carbon atoms forming a ring, each of R1 and R2 independently represents hydrogen (including deuterium), an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 13 carbon atoms forming a ring, n represents an integer greater than or equal to 1 and less than or equal to 6, and L is the group represented by General Formula (L-1). In General Formula (L-1), each of R3 and R4 independently represents hydrogen (including deuterium) or an alkyl group having 1 to 6 carbon atoms, and k is an integer greater than or equal to 1 and less than or equal to 5.

    Light-Emitting Device, Display Panel, Light-Emitting Apparatus, Display Device, Electronic Device, and Lighting Device
    96.
    发明公开
    Light-Emitting Device, Display Panel, Light-Emitting Apparatus, Display Device, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20230337453A1

    公开(公告)日：2023-10-19

    申请号：US18008868

    申请日：2021-06-03

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Yuta KAWANO ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC: H10K50/13 ,  H10K50/858 ,  H10K59/121

    CPC classification number: H10K50/13 ,  H10K50/858 ,  H10K59/1213 ,  H10K2102/3026

    Abstract: A novel optical functional device that is highly convenient, useful, or reliable is provided. A light-emitting device includes a first electrode, a second electrode, and an EL layer. The first electrode has a first transmittance; the second electrode overlaps with the first electrode. The second electrode has a second transmittance higher than the first transmittance. The EL layer is interposed between the first electrode and the second electrode and includes a first region, a second region, and a third region. The first region is interposed between the second region and the third region. The second region is interposed between the first electrode and the first region and has a first refractive index. The third region is interposed between the first region and the second electrode and has a second refractive index. The second refractive index is lower than the first refractive index. The EL layer includes a first unit, a second unit, and an intermediate layer. The intermediate layer is interposed between the first unit and the second unit and has a function of supplying a hole to one of the first unit and the second unit and supplying an electron to the other.

    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, DISPLAY APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    97.
    发明公开
    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, DISPLAY APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE 审中-公开

    公开(公告)号：US20230320130A1

    公开(公告)日：2023-10-05

    申请号：US18017520

    申请日：2021-07-28

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Hiromitsu KIDO ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC: H10K50/858 ,  H10K50/15 ,  C07C211/61 ,  C09K11/06

    CPC classification number: H10K50/858 ,  H10K50/156 ,  C07C211/61 ,  C09K11/06 ,  H10K2102/351

    Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a function of emitting light, a first electrode, a second electrode, and a unit. The light has the maximum peak at a wavelength (lambda). The second electrode includes a region overlapping with the first electrode. The unit includes a region positioned between the first electrode and the second electrode. The unit includes a first layer, a second layer, and a third layer. The first layer includes a region positioned between the second layer and the third layer. The first layer contains a light-emitting material. The second layer includes a fourth layer and a fifth layer. The fifth layer includes a region positioned between the fourth layer and the first layer. The fourth layer contains a first organic compound. The first organic compound has a first refractive index with respect to light having the wavelength (lambda). The fifth layer is in contact with the fourth layer. The fifth layer contains a second organic compound. The second organic compound has a second refractive index with respect to light having the wavelength (lambda). The second refractive index is lower than the first refractive index.

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