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

    公开(公告)号：US20230097840A1

    公开(公告)日：2023-03-30

    申请号：US17801585

    申请日：2021-02-15

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Shiho NOMURA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Shogo UESAKA

    IPC: H01L51/50

    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, a unit, and a first layer. 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 second layer and a third layer. The second layer includes a region where the third layer is positioned between the second layer and the first electrode. The second layer contains a light-emitting material. The first layer includes a region positioned between the third layer and the first electrode. The first layer contains a material having an acceptor property and a first material. The first layer includes a first region and a second region. The first region includes a region positioned between the second region and the first electrode. The first region contains the material having an acceptor property at a first concentration. The second region contains the material having an acceptor property at a second concentration. Note that the second concentration is higher than zero and lower than the first concentration.

    Light-Emitting Device, Electronic Device, and Lighting Device
    3.
    发明申请
    Light-Emitting Device, Electronic Device, and Lighting Device 有权
    发光装置，电子装置和照明装置

    公开(公告)号：US20160093678A1

    公开(公告)日：2016-03-31

    申请号：US14869234

    申请日：2015-09-29

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satoshi Seo ,  Ryohei YAMAOKA ,  Shogo UESAKA

    IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

    CPC classification number: H01L51/5265 ,  H01L27/3211 ,  H01L27/3216 ,  H01L27/322 ,  H01L27/323 ,  H01L51/504 ,  H01L51/5068 ,  H01L51/5084 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5215 ,  H01L51/5221 ,  H01L51/5234 ,  H01L2251/5376 ,  H01L2251/558

    Abstract: To provide a novel light-emitting device with high productivity, the light-emitting device includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. In the first light-emitting element, a first lower electrode, a first transparent conductive layer, a first light-emitting layer, a second light-emitting layer, and an upper electrode are stacked in this order. In the second light-emitting element, a second lower electrode, a second transparent conductive layer, the first light-emitting layer, the second light-emitting layer, and the upper electrode are stacked in this order. In the third light-emitting element, a third lower electrode, a third transparent conductive layer, the second light-emitting layer, and the upper electrode are stacked in this order. The first transparent conductive layer includes a first region. The second transparent conductive layer includes a second region as thick as the third transparent conductive layer. The first region is thicker than the second region.

    Abstract translation: 为了提供高生产率的新颖的发光装置，发光装置包括第一发光元件，第二发光元件和第三发光元件。 在第一发光元件中，依次堆叠第一下电极，第一透明导电层，第一发光层，第二发光层和上电极。 在第二发光元件中，依次层叠第二下部电极，第二透明导电层，第一发光层，第二发光层和上部电极。 在第三发光元件中，依次层叠第三下电极，第三透明导电层，第二发光层和上电极。 第一透明导电层包括第一区域。 第二透明导电层包括与第三透明导电层一样厚的第二区域。 第一区域比第二区域厚。

    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
    4.
    发明申请
    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20200152903A1

    公开(公告)日：2020-05-14

    申请号：US16738335

    申请日：2020-01-09

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Toshiki SASAKI ,  Shogo UESAKA ,  Satoshi SEO

    IPC: H01L51/50 ,  H01L51/52

    Abstract: A light-emitting element with a high current efficiency is provided. A low-power consumption light-emitting device is also provided. In addition, low-power consumption electronic device and lighting device are provided. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes a light-emitting layer. The light-emitting layer includes a first light-emitting layer and a second light-emitting layer. The emission peak of the second light-emitting layer is at a shorter wavelength than that of the first light-emitting layer. The first light-emitting layer includes a host material and a guest material. The LUMO level of the guest material is in the range of ±0.1 eV of the LUMO level of the host material.

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