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    TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT
    3.
    发明申请
    TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT 有权

    公开(公告)号：US20210294453A1

    公开(公告)日：2021-09-23

    申请号：US17339203

    申请日：2021-06-04

    Applicant: Japan Display Inc.

    Inventor： Takayuki Nakanishi ,  Koji Noguchi ,  Koji Ishizaki ,  Yasuyuki Teranishi ,  Takeya Takeuchi

    IPC: G06F3/041 ,  G06F3/044

    Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

    Contact detecting device for multi-touch sensing
    5.
    发明授权
    Contact detecting device for multi-touch sensing 有权

    公开(公告)号：US10372262B2

    公开(公告)日：2019-08-06

    申请号：US15944362

    申请日：2018-04-03

    Applicant: Japan Display Inc.

    Inventor： Koji Noguchi ,  Takeya Takeuchi

    IPC: G06F3/041 ,  G06F1/16 ,  G06F3/044

    Abstract: A contact detecting device including: a contact responding section configured to produce an electric change in response to an object to be detected coming into contact with or proximity to a detecting surface; and a contact driving scanning section configured to scan application of driving voltage to the contact responding section in one direction within the detecting surface, and control output of the electric change in time series, wherein the contact driving scanning section performs a plurality of scans of different regions of the contact responding section in parallel with each other, and outputs a plurality of the electric changes in parallel with each other.

    TOUCH SENSOR, DISPLAY AND ELECTRONIC DEVICE
    6.
    发明申请
    TOUCH SENSOR, DISPLAY AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20180239460A1

    公开(公告)日：2018-08-23

    申请号：US15895756

    申请日：2018-02-13

    Applicant: Japan Display Inc.

    Inventor： Yasuyuki Teranishi ,  Koji Noguchi ,  Koji Ishizaki ,  Takeya Takeuchi ,  Takayuki Nakanishi

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0412

    Abstract: A capacitive type touch sensor appropriately detecting an object, and a display and an electronic device including such a touch sensor are provided. The display including a drive electrode receiving a drive signal, a detection electrode located adjacent to the drive electrode, and a dielectric material located between the drive electrode and the detection electrode defining a capacitive area. The detection electrode generates an output signal driven by the drive signal, a detection circuit electrically connected to the detection electrode sensing the output signal. A switch element is electrically connected between the detection electrode and a voltage source providing a predefined voltage level and having a first state and a second state. A display control circuit controls a voltage applied between a display common voltage electrode and a pixel electrode to display an image based on an image signal, and the display common voltage electrode serves as the drive electrode.

    TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT
    9.
    发明申请
    TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT 审中-公开
    触摸板，显示面板和显示单元

    公开(公告)号：US20150235607A1

    公开(公告)日：2015-08-20

    申请号：US14699029

    申请日：2015-04-29

    Applicant: Japan Display Inc.

    Inventor： Takayuki Nakanishi ,  Koji Noguchi ,  Koji Ishizaki ,  Yasuyuki Teranishi ,  Takeya Takeuchi

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

    CPC classification number: G09G3/3696 ,  G06F3/03547 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/047 ,  G09G3/2983 ,  G09G3/2986 ,  G09G2330/06 ,  H01J11/12

    Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise, are provided. The touch panel includes: a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

    Abstract translation: 提供了一种实现防止由外部噪声引起的错误检测的触摸面板，显示面板和显示单元。 触摸面板包括：沿第一方向延伸的多个检测扫描电极; 以及面对多个检测用扫描电极的多个检测电极，并且在与第一方向相交的第二方向上延伸。 一个或多个所选择的检测扫描电极和第一检测电极之间的边缘电容与总电容的比率不同于一个或多个所选检测扫描电极和第二检测电极之间的边缘电容与总电容的比率。 一个或多个选择的检测扫描电极以所需单位从多个检测扫描电极中选择，以被提供选择脉冲，并且第一和第二检测电极中的每一个从多个检测电极中选择 。

    Display device
    10.
    发明授权
    Display device 有权

    公开(公告)号：US10996783B2

    公开(公告)日：2021-05-04

    申请号：US16815806

    申请日：2020-03-11

    Applicant: Japan Display Inc.

    Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

    IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G09G3/36

    Abstract: A display device with a touch sensor is provided and includes a substrate; pixel electrodes on the substrate; thin film transistors (TFTs) coupled to the pixel electrodes; touch sensor electrodes arranged opposite to the pixel electrodes; a gate buffer coupled to the TFTs; a first switch coupled to the gate buffer; first-L and first-H lines coupled to the first switch; a second line coupled to the gate buffer; and a drive control circuit applying a drive signal to the touch sensor electrodes, wherein a signal supplied to the TFTs is one of a pulse wave signal and a signal in which different three potentials are switched at given timings, wherein three potentials include a first potential supplied through the first-L line, a second potential supplied through the second line, and a third potential supplied through first-H line, wherein the first switch switches to couple the gate buffer with first-L line and first-H line in synchronization with the drive signal in which a first and second common potential are repeated, such that the TFT circuits are supplied with the pulse wave signal in which first and third potential are repeated, and wherein the third potential is greater than the first potential and less than the second potential.

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