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    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, LIGHT-EMITTING MODULE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    2.
    发明申请
    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, LIGHT-EMITTING MODULE, ELECTRONIC DEVICE, AND LIGHTING DEVICE 有权

    公开(公告)号：US20220231249A1

    公开(公告)日：2022-07-21

    申请号：US17609026

    申请日：2020-04-27

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Takeyoshi WATABE ,  Airi UEDA ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC分类号： H01L51/50

    摘要： The reliability of a light-emitting device emitting near-infrared light is increased. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer in this order between a pair of electrodes. The hole-injection layer contains a first compound and a second compound. The first compound has a property of accepting an electron from the second compound. The second compound has a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. The light-emitting layer contains a light-emitting organic compound. The maximum peak wavelength of light emitted from the light-emitting organic compound is greater than or equal to 760 nm and less than or equal to 900 nm. The electron-transport layer contains a third compound and a substance containing a metal. The third compound is an electron-transport material. The substance containing a metal is a metal, a metallic salt, a metal oxide, or an organometallic salt.

    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, DISPLAY DEVICE, AND LIGHTING DEVICE
    3.
    发明申请
    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, DISPLAY DEVICE, AND LIGHTING DEVICE 有权

    公开(公告)号：US20220140250A1

    公开(公告)日：2022-05-05

    申请号：US17516826

    申请日：2021-11-02

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Yuta KAWANO ,  Takeyoshi WATABE ,  Airi UEDA ,  Nobuharu OHSAWA ,  Keito TOSU ,  Harue OSAKA ,  Ryo NARUKAWA ,  Satoshi SEO

    IPC分类号： H01L51/00

    摘要： A novel light-emitting device, a novel light-emitting apparatus, a novel electronic device, a novel display device, and a novel lighting device which are highly convenient, useful, or reliable are provided. The light-emitting device includes a first electrode, a second electrode, a first layer, and a second layer. The second electrode includes a region overlapping with the first electrode, the first layer includes a region sandwiched between the first electrode and the second electrode, the first layer includes a light-emitting material, the light-emitting material has a function of emitting photoluminescent light in a solution, the photoluminescent light has a first spectrum, the first spectrum has a maximum peak at a wavelength λ1, and the wavelength λ1 is in the range greater than or equal to 440 nm and less than or equal to 470 nm. The second layer includes a region sandwiched between the first layer and the second electrode, the second layer includes a first organic compound, the first organic compound has a first refractive index n1 with respect to light having the wavelength λ1, and the first refractive index n1 is more than or equal to 1.4 and less than or equal to 1.75.

    LIGHT-EMITTING APPARATUS, DISPLAY DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    4.
    发明公开
    LIGHT-EMITTING APPARATUS, DISPLAY DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE 审中-公开

    公开(公告)号：US20240324386A1

    公开(公告)日：2024-09-26

    申请号：US18577764

    申请日：2022-07-04

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

    IPC分类号： H10K59/38 ,  H10K59/80 ,  H10K101/30

    CPC分类号： H10K59/38 ,  H10K59/879 ,  H10K2101/30

    摘要： A light-emitting device with high emission efficiency is provided. The light-emitting device includes a first electrode, a second electrode, and an EL layer positioned between the first electrode and the second electrode. The EL layer includes at least a light-emitting layer, a first layer, a second layer, and a third layer. The first layer is positioned between the first electrode and the light-emitting layer. The third layer is positioned between the first layer and the light-emitting layer. The second layer is positioned between the first layer and the third layer. The first layer includes a first organic compound. The second layer includes a second organic compound. The third layer includes a third organic compound. The ordinary refractive index of the second organic compound is higher than the ordinary refractive index of the first organic and the ordinary refractive index of the third organic compound.

    ORGANIC COMPOUND, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    6.
    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

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

    IPC分类号： C07C211/61 ,  H01L51/00

    摘要： 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, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    9.
    发明公开
    LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE 审中-公开

    公开(公告)号：US20240049578A1

    公开(公告)日：2024-02-08

    申请号：US18247672

    申请日：2021-09-27

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Takeyoshi WATABE ,  Airi UEDA ,  Yuta KAWANO ,  Tomohiro KUBOTA ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC分类号： H10K59/80 ,  H10K59/38

    CPC分类号： H10K59/879 ,  H10K59/38 ,  H10K50/15

    摘要： A light-emitting device with low power consumption is provided. The light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a layer including a material with an ordinary refractive index higher than or equal to 1.50 and lower than 1.75 with respect to light with a wavelength longer than or equal to 455 nm and shorter than or equal to 465 nm. The first color conversion layer includes a first substance that absorbs light and emits light. An ordinary refractive index of the first color conversion layer with respect to light with a wavelength longer than or equal to 455 nm and shorter than or equal to 465 nm is higher than or equal to 1.40 and lower than or equal to 2.10. The first color conversion layer is on an optical path of the light emitted from the first light-emitting device to an outside of the light-emitting apparatus.