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    Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, Display Device, and Lighting Device
    22.
    发明申请
    Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, Display Device, and Lighting Device 有权

    公开(公告)号：US20210347782A1

    公开(公告)日：2021-11-11

    申请号：US16090477

    申请日：2018-02-28

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Kyoko TAKEDA ,  Harue OSAKA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO ,  Yusuke TAKITA

    IPC: C07D491/048 ,  C07D495/00 ,  H01L51/00

    Abstract: A novel organic compound is provided. Alternatively, an organic compound that exhibits light emission with favorable chromaticity is provided. Alternatively, an organic compound that exhibits blue light emission with favorable chromaticity is provided. Alternatively, an organic compound with favorable emission efficiency is provided. Alternatively, an organic compound having a high carrier-transport property is provided. Alternatively, an organic compound with favorable reliability is provided.
    An organic compound including at least one amino group in which any one of a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, and a substituted or unsubstituted carbazolyl group is bonded to any one of a substituted or unsubstituted naphthobisbenzofuran skeleton, a substituted or unsubstituted naphthobisbenzothiophene skeleton, and a substituted or unsubstituted naphthobenzofuranobenzothiophene skeleton is provided.

    DISPLAY UNIT, DISPLAY MODULE, AND ELECTRONIC DEVICE
    24.
    发明申请
    DISPLAY UNIT, DISPLAY MODULE, AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20210005669A1

    公开(公告)日：2021-01-07

    申请号：US16914530

    申请日：2020-06-29

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Taisuke KAMADA ,  Ryo HATSUMI ,  Daisuke KUBOTA ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI ,  Harue OSAKA ,  Satoshi SEO

    IPC: H01L27/28 ,  H01L27/30 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52

    Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.

    DISPLAY DEVICE, DISPLAY MODULE, ELECTRONIC DEVICE, AND TELEVISION DEVICE
    30.
    发明申请
    DISPLAY DEVICE, DISPLAY MODULE, ELECTRONIC DEVICE, AND TELEVISION DEVICE 有权

    公开(公告)号：US20240431129A1

    公开(公告)日：2024-12-26

    申请号：US18751482

    申请日：2024-06-24

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Shunpei YAMAZAKI ,  Satoshi SEO ,  Harue OSAKA

    IPC: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K59/12 ,  H10K71/00 ,  H10K71/13 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

    Abstract: A display device having a long lifetime is provided. A large-sized display device is provided. A display device includes a first light-emitting device and a second light-emitting device. The first light-emitting device includes a hole-injection layer, a first light-emitting layer, and an electron-transport layer. The second light-emitting device includes a second light-emitting layer. The hole-injection layer contains a first compound and a second compound. The first light-emitting layer contains a third compound that emits light of a first color. The second light-emitting layer contains a fourth compound that emits light of a second color. The electron-transport layer contains a fifth compound. The first compound has a property of accepting electrons 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 fifth compound has a HOMO level higher than or equal to −6.0 eV and an electron mobility higher than or equal to 1×10A−7 cm{circumflex over ( )}2/Vs and lower than or equal to 5×10{circumflex over ( )}−5 cm{circumflex over ( )}2/Vs when the square root of electric field strength [V/cm] is 600.

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