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    DISPLAY APPARATUS AND METHOD FOR MANUFACTURING DISPLAY APPARATUS
    1.
    发明公开
    DISPLAY APPARATUS AND METHOD FOR MANUFACTURING DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20240324309A1

    公开(公告)日：2024-09-26

    申请号：US18580309

    申请日：2022-07-11

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Yoshinobu ASAMI ,  Takahiro FUJIE ,  Ryo TAGASHIRA ,  Sachiko KAWAKAMI ,  Yui YOSHIYASU ,  Tomohiro KUBOTA

    IPC: H10K59/122 ,  H10K59/12

    CPC classification number: H10K59/122 ,  H10K59/1201

    Abstract: A display apparatus with high display quality is provided. A display apparatus includes a first pixel, a second pixel provided adjacent to the first pixel, a first insulating layer, and a second insulating layer over the first insulating layer. The first pixel includes a first pixel electrode, a first EL layer covering the first pixel electrode, a common electrode over the first EL layer. The second pixel includes a second pixel electrode, a second EL layer covering the second pixel electrode, and the common electrode over the second EL layer. The first insulating layer covers part of a side surface and part of a top surface of the first EL layer and part of a side surface and part of a top surface of the second EL layer. At least part of the second insulating layer is provided to be sandwiched between an end portion of the side surface of the first EL layer and an end portion of the side surface of the second EL layer. The second insulating layer contains an acrylic resin, and the second insulating layer has a tapered side surface and a convex shaped top surface. A taper angle of the tapered side surface of the second insulating layer is less than 90°, and the common electrode overlaps with the second insulating layer.

    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, DISPLAY DEVICE, AND LIGHTING DEVICE
    5.
    发明公开
    LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, DISPLAY DEVICE, AND LIGHTING DEVICE 审中-公开

    公开(公告)号：US20240130225A1

    公开(公告)日：2024-04-18

    申请号：US18262595

    申请日：2022-01-21

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Nobuharu OHSAWA ,  Satoshi SEO ,  Yui YOSHIYASU ,  Hideko YOSHIZUMI

    IPC: H10K85/60 ,  C09K11/06 ,  H10K85/30

    CPC classification number: H10K85/633 ,  C09K11/06 ,  H10K85/342 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  H10K50/11

    Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a first electrode, a second electrode, and a first layer. The first layer is positioned between the first electrode and the second electrode. The first layer includes a light-emitting material, a first organic compound, and a first material. The light-emitting material has a function of emitting fluorescent light. The absorption spectrum of the light-emitting material has the longest-wavelength edge at a first wavelength. The first organic compound has a function of converting triplet excitation energy into light emission. The spectrum of the emitted light has the shortest-wavelength edge at a second wavelength. The second wavelength is positioned at a wavelength shorter than the first wavelength. The first organic compound includes a first substituent R1. The first substituent R1 is any of an alkyl group, a substituted or unsubstituted cycloalkyl group, and a trialkylsilyl group. The first material has a function of emitting delayed fluorescent light at room temperature. The difference between the HOMO level and the LUMO level of the first material is smaller than the difference between the HOMO level and the LUMO level of the first organic compound.

    Light-Emitting Device, Light-Emitting Apparatus, Electronic Appliance, and Lighting Device
    6.
    发明公开
    Light-Emitting Device, Light-Emitting Apparatus, Electronic Appliance, and Lighting Device 审中-公开

    公开(公告)号：US20240315066A1

    公开(公告)日：2024-09-19

    申请号：US18276508

    申请日：2022-01-28

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Yui YOSHIYASU ,  Naoaki HASHIMOTO ,  Tatsuyoshi TAKAHASHI ,  Sachiko KAWAKAMI ,  Satoshi SEO

    IPC: H10K50/16 ,  H10K50/844 ,  H10K85/30 ,  H10K85/60

    CPC classification number: H10K50/166 ,  H10K50/844 ,  H10K85/342 ,  H10K85/615 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572

    Abstract: A light-emitting device having high heat resistance in a manufacturing process is provided. Provided is a light-emitting device which includes a second electrode over a first electrode with a first EL layer therebetween and in which the first EL layer includes at least a first light-emitting layer; a second EL layer is over the first EL layer; the second EL layer includes at least a second light-emitting layer, a first electron-transport layer, and a second electron-transport layer; the first electron-transport layer is over the second light-emitting layer; an insulating layer is in contact with the side surface of the first light-emitting layer, the side surface of the second light-emitting layer, and the side surface of the first electron-transport layer; the second electron-transport layer is over the first electron-transport layer; the insulating layer is positioned between the second electron-transport layer and the side surface of the first light-emitting layer, the side surface of the second light-emitting layer, and the side surface of the first electron-transport layer; and the first electron-transport layer includes a heteroaromatic compound including at least one heteroaromatic ring and an organic compound different from the heteroaromatic compound.

    ORGANIC COMPOUND, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, AND ELECTRONIC DEVICE
    9.
    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.

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