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

    公开(公告)号：US20250024741A1

    公开(公告)日：2025-01-16

    申请号：US18710336

    申请日：2022-11-16

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC: H10K59/80 ,  H10K50/15 ,  H10K50/17 ,  H10K50/18

    Abstract: A light-emitting apparatus with high emission efficiency is provided. A light-emitting apparatus including a light-emitting device A and a light-emitting device B is provided. The light-emitting device A includes a first electrode A, a second electrode A, a light-emitting layer A interposed between the first electrode A and the second electrode A, and a first layer A interposed between the first electrode A and the light-emitting layer A. The light-emitting device B includes a first electrode B, a second electrode B, a light-emitting layer B interposed between the first electrode B and the second electrode B, a first layer B interposed between the first electrode B and the light-emitting layer B, and a second layer B interposed between the first electrode B and the light-emitting layer B. The light-emitting layer A contains a light-emitting substance A. The light-emitting layer B contains a light-emitting substance B. An emission peak wavelength of the light-emitting substance A is shorter than an emission peak wavelength of the light-emitting substance B. The first layer A and the first layer B contain the same material. An ordinary refractive index of the second layer B is lower than an ordinary refractive index of the first layer A by a value 0.15 or more, with respect to the emission peak wavelength of the light-emitting substance B.

    LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    8.
    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.

    ORGANIC COMPOUND AND LIGHT-EMITTING DEVICE
    9.
    发明公开
    ORGANIC COMPOUND AND LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20230354703A1

    公开(公告)日：2023-11-02

    申请号：US18305550

    申请日：2023-04-24

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Nozomi KOMATSU ,  Yui YOSHIYASU ,  Nobuharu OHSAWA ,  Takeyoshi WATABE

    IPC: H10K85/60 ,  C07D519/00 ,  C09K11/06

    CPC classification number: H10K85/6572 ,  C07D519/00 ,  C09K11/06 ,  H10K50/13

    Abstract: An electron-injection organic compound capable of providing a high-performance semiconductor device, and a light-emitting device including the organic compound are provided. An organic compound represented by General Formula (G1) and a light-emitting device including the organic compound are provided. Note that in General Formula (G1), R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaromatic hydrocarbon group having 2 to 30 carbon atoms, and a group represented by Structural Formula (R-1). Note that at least two of R1 to R8 each represent a group other than hydrogen, and one to four of R1 to R8 each represent the group represented by Structural Formula (R-1).

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