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    DISPLAY APPARATUS
    11.
    发明申请
    DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20170220153A1

    公开(公告)日：2017-08-03

    申请号：US15409867

    申请日：2017-01-19

    Applicant: Japan Display Inc.

    Inventor： Gen KOIDE ,  Tadayoshi KATSUTA ,  Toshiaki FUKUSHIMA ,  Naoyuki OBINATA

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/36

    Abstract: A display apparatus which can reduce a parasitic capacitance during driving of driving electrodes based on a self-capacitance detecting method is provided. The display apparatus includes: a plurality of connection wires which are formed in a peripheral area and are connected to a plurality of corresponding video signal lines; a video signal line selection circuit which is connected with a plurality of connection wires, selects at least one connection wire and supplies a signal to the video signal lines; self-capacitance detection wires which extend in a direction intersecting an extension direction of the connection wires and intersects the connection wires; common wires which electrically connect the self-capacitance detection wires and drive electrodes; and transistors which are provided between the self-capacitance detection wires and the common wires. Further, the self-capacitance detection wires extend between a display area and the video signal line selection circuit in a plan view.

    DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION
    12.
    发明公开
    DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION 审中-公开

    公开(公告)号：US20240160308A1

    公开(公告)日：2024-05-16

    申请号：US18423765

    申请日：2024-01-26

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA ,  Hiroshi MIZUHASHI

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/04166 ,  G06F3/044 ,  G06F3/0445 ,  G06F3/0446 ,  G02F1/13338

    Abstract: A display device with is touch detection function is provided and includes display area where electrodes are arranged in matrix having first and second directions crossing above substrate; common electrodes provided so as to face pixel electrodes; pixel signal lines each coupled to pixel electrodes, extending in first direction; control device for performing image display control and including drive signal generator and source driver; single first wire to which both display drive voltage and touch drive signal are supplied from drive signal generator, and selection switches for selecting common electrodes, wherein the drive signal generator includes first and second voltage generators for generating first and second voltages, and switching circuit for switching between first and second voltages, and wherein selection switches each coupled to single first wire via first coupling conductor and coupled to common electrode via second coupling conductor are arranged in frame area along single first wire, and are overlapped by single first wire that is supplied with display drive voltage from drive signal generator and that is supplied with touch drive signal from drive signal generator.

    DETECTION FUNCTION-EQUIPPED DISPLAY DEVICE
    13.
    发明申请
    DETECTION FUNCTION-EQUIPPED DISPLAY DEVICE 有权

    公开(公告)号：US20220100345A1

    公开(公告)日：2022-03-31

    申请号：US17548807

    申请日：2021-12-13

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA

    IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

    Abstract: A detection function-equipped display device includes: a display unit provided with pixels; drive electrodes disposed along a display surface of the display unit and arranged in a first direction; detection electrodes disposed along the display surface, arranged in a second direction, and facing the drive electrodes; a potential selection circuit that performs switching control; a scanning circuit that outputs a scanning signal; a detection circuit that performs detection of a touch on the display surface based on potentials from the detection electrodes; and a signal selection circuit that supplies, to the potential selection circuit, either a first signal corresponding to the scanning signal or a second signal from the detection circuit. The switching control includes processing of applying the drive potential to one or more of the drive electrodes based on one of the first signal and the second signal and applying the non-drive potential to the other drive electrodes.

    DISPLAY DEVICE AND SEMICONDUCTOR DEVICE
    14.
    发明申请
    DISPLAY DEVICE AND SEMICONDUCTOR DEVICE 有权

    公开(公告)号：US20220005432A1

    公开(公告)日：2022-01-06

    申请号：US17479090

    申请日：2021-09-20

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA ,  Yoshikazu HASHIBA

    IPC: G09G3/36

    Abstract: The display control circuit includes a drive signal generation circuit that generates a gate drive signal, a scanning line drive circuit that supplies the gate drive signal to the scanning line, and a first wire through which the gate drive signal from the drive signal generation circuit is supplied to the scanning line drive circuit. The drive signal generation circuit includes a first potential supply circuit that supplies, to the first wire, a first potential equal to or lower than an off-potential of the pixel transistor, a second potential supply circuit that supplies, to the first wire, a second potential lower than the first potential, a third potential supply circuit that supplies, to the first wire, a third potential higher than the first potential, and a fourth potential supply circuit that supplies, to the first wire, a fourth potential equal to or higher than an on-potential of the pixel transistor.

    ARRAY SUBSTRATE AND DISPLAY DEVICE
    15.
    发明申请
    ARRAY SUBSTRATE AND DISPLAY DEVICE 有权

    公开(公告)号：US20210020661A1

    公开(公告)日：2021-01-21

    申请号：US16928185

    申请日：2020-07-14

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA

    IPC: H01L27/12 ,  G02F1/1362

    Abstract: According to an aspect, an array substrate includes a first scan line, a second scan line, and a signal line. A semiconductor film has a coupling portion coupling one end of a first linear portion to one end of a second linear portion. Another end of the first linear portion of the semiconductor film and another end of the second linear portion of the semiconductor film are coupled to the signal line. In a plan view, the semiconductor film is disposed between the first scan line and the second scan line, the first linear portion intersects two first gate electrodes, and the second linear portion intersects two second gate electrodes.

    DISPLAY DEVICE
    17.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20180348935A1

    公开(公告)日：2018-12-06

    申请号：US15986919

    申请日：2018-05-23

    Applicant: Japan Display Inc.

    Inventor： Hayato KURASAWA ,  Hiroshi MIZUHASHI ,  Tadayoshi KATSUTA

    IPC: G06F3/041 ,  G06F3/046 ,  G09G3/36 ,  G06F3/044

    Abstract: A display device includes a substrate, first electrodes, pixel electrodes, a display functional layer, common electrodes, second electrodes stacked in this order. The display device further includes lines that are provided between the substrate and the display functional layer and intersect with the first electrodes in the plan view. In response to a control signal from a controller, the pixel electrodes are supplied with a pixel signal through the lines, and the common electrodes are supplied with a common signal in the display periods; either of the lines and the first electrodes are supplied with a first drive signal to generate a magnetic field, and the other thereof generate an electromotive force caused by the magnetic field in the first sensing period; the common electrodes are supplied with a second drive signal to generate electrostatic capacitance between the common electrodes and the second electrodes in the second sensing period.

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