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    DISPLAY DEVICE, DRIVING METHOD OF DISPLAY DEVICE, AND ELECTRONIC DEVICE
    81.
    发明申请
    DISPLAY DEVICE, DRIVING METHOD OF DISPLAY DEVICE, AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200327835A1

    公开(公告)日：2020-10-15

    申请号：US16756343

    申请日：2018-10-30

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kei TAKAHASHI ,  Shunpei YAMAZAKI

    IPC: G09G3/20 ,  H01L27/105 ,  H01L27/12 ,  H01L29/786 ,  H04N5/225

    Abstract: To provide a display device capable of displaying a plurality of images by superimposition using a plurality of memory circuits provided in a pixel. A plurality of memory circuits are provided in a pixel, and signals corresponding to images for superimposition are retained in each of the plurality of memory circuits. In the pixel, the signals corresponding to the images for superimposition are added to each of the plurality of memory circuits. The signals are added to the signals retained in the memory circuits by capacitive coupling. A display element can display an image corresponding to a signal in which a signal written to a pixel through a wiring is added to the signals retained in the plurality of memory circuits. Reduction in the amount of arithmetic processing for displaying images by superimposition can be achieved.

    SEMICONDUCTOR DEVICE, DISPLAY DEVICE, ELECTRONIC DEVICE, AND OPERATION METHOD
    82.
    发明申请
    SEMICONDUCTOR DEVICE, DISPLAY DEVICE, ELECTRONIC DEVICE, AND OPERATION METHOD 审中-公开

    公开(公告)号：US20200320930A1

    公开(公告)日：2020-10-08

    申请号：US16765496

    申请日：2018-12-04

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Kouhei TOYOTAKA ,  Kei TAKAHASHI ,  Susumu KAWASHIMA ,  Shunpei YAMAZAKI

    IPC: G09G3/3233 ,  H01L27/32

    Abstract: A semiconductor device that reduces variations in the characteristics of driving transistors and corrects image data is provided. The semiconductor device includes an image data retention portion, a correction data retention portion, a driver circuit portion, a display element, and a threshold voltage correction circuit portion. The image data retention portion has a function of retaining first image data, and the correction data retention portion has a function of retaining correction data, and a function of generating second image data corresponding to the first image data and the correction data when the first image data is retained in the image data retention portion. The driver circuit portion has a function of generating a current corresponding to the second image data and feeding the current to the display element, and the threshold voltage correction circuit portion has a function of correcting a threshold voltage of a driving transistor in the driver circuit portion. With the above structure, the semiconductor device can correct the image data, correct the threshold voltage of the driving transistor, and perform display based on the second image data.

    DISPLAY DEVICE AND ELECTRONIC DEVICE
    84.
    发明申请
    DISPLAY DEVICE AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200302889A1

    公开(公告)日：2020-09-24

    申请号：US16771052

    申请日：2018-12-04

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Kei TAKAHASHI ,  Koji KUSUNOKI ,  Susumu KAWASHIMA ,  Shunpei YAMAZAKI

    IPC: G09G3/36 ,  G09G5/393 ,  G09G3/3225 ,  G09G3/3275

    Abstract: A display device with a low power consumption a small circuit area is provided. The display device includes an image signal line, an image data storage portion, a correction data storage portion, and a display element; the correction data storage portion is electrically connected to the image signal line, the image signal line is electrically connected to the image data storage portion, and the image data storage portion is electrically connected to the display element. The image signal line stores a first image data with parasitic capacitance, and the image data storage portion stores the first image data. The correction data storage portion stores a correction data, and then generates a second image data having more gradation levels using the correction data in the correction data storage portion after storing the first image data in the image data storage portion.

    DISPLAY DEVICE, DISPLAY MODULE, AND ELECTRONIC DEVICE
    85.
    发明申请
    DISPLAY DEVICE, DISPLAY MODULE, AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200185421A1

    公开(公告)日：2020-06-11

    申请号：US16794348

    申请日：2020-02-19

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Kei TAKAHASHI ,  Shunpei YAMAZAKI

    IPC: H01L27/12 ,  G09G3/20 ,  G09G3/32 ,  G09G3/36 ,  G09G5/00

    Abstract: A display device with high resolution is provided. A display device with high display quality is provided. A display device includes a display portion, a first terminal group, and a second terminal group. The display portion includes pixels, scan lines, and signal lines. The first terminal group and the second terminal group are apart from each other. The first terminal group includes first terminals and the second terminal group includes second terminals. The scan lines are each electrically connected to the pixels arranged in a row direction. The signal lines are each electrically connected to the pixels arranged in a column direction. The signal lines are each electrically connected to the first terminal or the second terminal. The display portion includes a first region where the signal lines electrically connected to the first terminals and the signal lines electrically connected to the second terminals are mixed.

    Display Device and Control Program
    89.
    发明申请
    Display Device and Control Program 审中-公开

    公开(公告)号：US20180059841A1

    公开(公告)日：2018-03-01

    申请号：US15685792

    申请日：2017-08-24

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takayuki IKEDA ,  Yuki OKAMOTO ,  Kei TAKAHASHI ,  Shunpei YAMAZAKI

    IPC: G06F3/041 ,  G06F1/32

    CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F1/3203 ,  G06F1/3265 ,  G06F3/04883 ,  Y02D10/153

    Abstract: A display device with excellent visibility can be provided. The display device includes a display region displayed by a light-emitting element. In the display region, a point touched by a user is a first point, a point which has been touched by the user prior to the first point is a second point, a vector that starts at the first point and ends at the second point is a first vector, a vector obtained by multiplying the first vector by k (k is a real number) is a second vector, and a point that is the second vector away from the first point is a third point, the display region includes a first region and a second region obtained by excluding the first region from the display region, The first region includes a first circle and a second circle, the center of the first circle is the first point, and the center of the second circle is the third point. The luminance in the first region is higher than the luminance in the second region.

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