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    Imaging device comprising first circuit and second circuit
    32.
    发明授权
    Imaging device comprising first circuit and second circuit 有权

    公开(公告)号：US11948959B2

    公开(公告)日：2024-04-02

    申请号：US17258805

    申请日：2019-07-18

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Kei Takahashi ,  Naoto Kusumoto

    IPC: H01L27/146 ,  H01L31/107 ,  H04N25/77

    CPC classification number: H01L27/14636 ,  H01L31/107 ,  H04N25/77

    Abstract: An imaging device that generates, in a pixel, a potential higher than a potential to be supplied to the pixel is provided. The imaging device includes a pixel including a first circuit and a second circuit; the second circuit includes a photoelectric conversion device; the first circuit is electrically connected to the second circuit; the first circuit has a function of adding a first potential and a second potential to generate a third potential; and the second circuit has a function of generating data in the photoelectric conversion device to which the third potential is applied and has a function of outputting the data.

    Imaging device and electronic device
    37.
    发明授权
    Imaging device and electronic device 有权

    公开(公告)号：US11302726B2

    公开(公告)日：2022-04-12

    申请号：US16628073

    申请日：2018-07-03

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Hidetomo Kobayashi ,  Yuki Tamatsukuri ,  Naoto Kusumoto

    IPC: H01L27/146 ,  H01L31/0272

    Abstract: An imaging device capable of executing image processing is provided.
    A structure is employed in which a photoelectric conversion element, a first transistor, a second transistor, and an inverter circuit are included; one electrode of the photoelectric conversion element is electrically connected to one of a source and a drain of the first transistor; the other of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor; the one of the source and the drain of the second transistor is electrically connected to an input terminal of the inverter circuit; and data obtained by photoelectric conversion is binarized and output.

    Display device and electronic device
    38.
    发明授权
    Display device and electronic device 有权

    公开(公告)号：US11204533B2

    公开(公告)日：2021-12-21

    申请号：US16977937

    申请日：2019-02-26

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Susumu Kawashima ,  Naoto Kusumoto

    IPC: G02F1/1362 ,  G02F1/1333 ,  H01L27/32 ,  G09G3/3208 ,  G09G3/36

    Abstract: A display device capable of improving the image quality is provided. The display device includes a pixel in which a first node, a second node, a third node, and a display element are provided, and the same image data is written to the first node and the second node first. Then, at the same time when the image data is read from the second node to the third node, the image data is added to the image data in the first node by capacitive coupling. This operation enables a data potential higher than or equal to the output voltage of a source driver to be supplied to the display element.

    Display device and electronic device
    39.
    发明授权
    Display device and electronic device 有权

    公开(公告)号：US11189643B2

    公开(公告)日：2021-11-30

    申请号：US16755645

    申请日：2018-10-26

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Susumu Kawashima ,  Naoto Kusumoto

    IPC: G02F1/1362 ,  H01L27/12

    Abstract: A display device capable of performing proper display without image signal conversion is provided. In the case of high-resolution display, individual data is supplied to each pixel through a first signal line and a first transistor included in each pixel. In the case of low-resolution display, the same data is supplied to a plurality of pixels through a second signal line and a second transistor electrically connected to the plurality of pixels. When the number of image signals to be displayed is more than one and the image signals support different resolutions, display can be performed without up conversion or down conversion by switching an image signal supply path as described above.

    Display device and electronic device
    40.
    发明授权
    Display device and electronic device 有权

    公开(公告)号：US10770482B2

    公开(公告)日：2020-09-08

    申请号：US16426293

    申请日：2019-05-30

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Susumu Kawashima ,  Naoto Kusumoto

    IPC: H01L27/12 ,  H01L27/15 ,  H01L27/32 ,  H01L27/146

    Abstract: A display device capable of improving image quality with low power consumption is provided. A storage node is provided in each pixel and a first signal can be held in the storage node. A second signal is added to the first signal by capacitive coupling to generate a third signal. A display element operates in response to the third signal. Thus, regardless of the output voltage of a driver that supplies data, a high voltage can be supplied to the display element. Consequently, even a display element that requires a relatively high voltage for operation can operate with low power consumption.

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