中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

643 records (took 0.032 seconds)

    Light-Emitting Device, Light-Emitting Apparatus, Electronic Appliance, and Lighting Device
    142.
    发明公开
    Light-Emitting Device, Light-Emitting Apparatus, Electronic Appliance, and Lighting Device 审中-公开

    公开(公告)号：US20240121979A1

    公开(公告)日：2024-04-11

    申请号：US18276165

    申请日：2022-02-01

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

    IPC: H10K50/844 ,  H10K50/16 ,  H10K50/17

    CPC classification number: H10K50/844 ,  H10K50/166 ,  H10K50/171 ,  H10K85/633

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

    Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device
    145.
    发明公开
    Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20240065024A1

    公开(公告)日：2024-02-22

    申请号：US18266908

    申请日：2021-12-06

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Nobuharu OHSAWA ,  Satoshi SEO

    IPC: H10K50/844 ,  H10K59/122

    CPC classification number: H10K50/844 ,  H10K59/122 ,  H10K50/15

    Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. A light-emitting device including a second electrode over a first electrode with an EL layer sandwiched therebetween is provided. The EL layer includes a light-emitting layer and an oxidation-resistant layer over the light-emitting layer. The EL layer includes a side surface. The light-emitting device includes a block layer in contact with a top surface and the side surface of the EL layer. The second electrode is in contact with the side surface of the EL layer through the block layer. The oxidation-resistant layer includes any one or a plurality of oxides of metals belonging to Group 4 to Group 8 of the periodic table and an organic compound having an electron-withdrawing group.

    LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    146.
    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

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

    IPC: H10K59/80 ,  H10K59/38

    CPC classification number: H10K59/879 ,  H10K59/38 ,  H10K50/15

    Abstract: 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.

    Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device
    148.
    发明公开
    Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20230301126A1

    公开(公告)日：2023-09-21

    申请号：US18134847

    申请日：2023-04-14

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Yusuke TAKITA ,  Takumu OKUYAMA ,  Anna TADA

    IPC: H10K50/11 ,  H10K50/15

    CPC classification number: H10K50/11 ,  H10K50/15 ,  H10K2101/40

    Abstract: A novel light-emitting device is provided. Alternatively, a light-emitting device with favorable emission efficiency is provided. Alternatively, a light-emitting device with a favorable lifetime is provided. Alternatively, a light-emitting device with a low driving voltage is provided. Provided is a light-emitting device including an anode, a cathode, and a layer including an organic compound that is positioned between the anode and the cathode, in which the layer including the organic compound includes a first layer, a second layer, and a light-emitting layer in this order from the anode side, the first layer includes a first substance and a second substance, the second layer includes a third substance, the first substance is an organic compound a HOMO level of which is higher than or equal to -5.8 eV and lower than or equal to -5.4 eV, the second substance is a substance that has an electron-acceptor property with respect to the first substance, and the third substance is an organic compound having a structure in which at least two substituents comprising carbazole rings are bonded to a naphthalene ring.

Patent Agency Ranking