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    Touch drive device
    1.
    发明授权
    Touch drive device 有权

    公开(公告)号：US10761647B2

    公开(公告)日：2020-09-01

    申请号：US16238833

    申请日：2019-01-03

    Applicant: Japan Display Inc.

    Inventor： Kohei Azumi ,  Hidetoshi Komatsu ,  Jin Ota ,  Hiroshi Mizuhashi ,  Makoto Hayashi

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G11C19/28

    Abstract: According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal. (TSVCOM) is supplied can be designated.

    Display device having touch detection function and method
    5.
    发明授权
    Display device having touch detection function and method 有权

    公开(公告)号：US10739884B2

    公开(公告)日：2020-08-11

    申请号：US15724623

    申请日：2017-10-04

    Applicant: Japan Display Inc.

    Inventor： Jin Ota ,  Hidetoshi Komatsu ,  Tsutomu Takabayashi

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

    Abstract: According to one embodiment, a display device includes a display panel configured to perform display operation based on a pixel signal in a display period, a detector configured to perform touch detection operation in touch detection periods, and a driver configured to control frame operations. The driver is configured to control a first frame operation in a first frame periods including the display period, a first touch detection period and a first display adjustment period, and control a second frame operation in a second frame periods including the display period, a first touch detection period and a second display adjustment period. The second display adjustment period is longer than the first display adjustment period and includes the second touch detection period.

    Display device
    6.
    发明授权
    Display device 有权

    公开(公告)号：US10345971B2

    公开(公告)日：2019-07-09

    申请号：US15138497

    申请日：2016-04-26

    Applicant: Japan Display Inc.

    Inventor： Takashi Yoshii ,  Jin Ota

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

    Abstract: According to one embodiment, a display device includes a display panel, switching elements, a power supply, a controller and a noise suppression circuit. The display panel displays an image. The switching elements supply a pixel signal to the display panel. The power supply supplies a power source voltage to the switching elements. The controller switches between a display period during which the display panel displays an image and a non-display period during which the display panel does not display an image. The noise suppression circuit preliminarily reduces a potential difference between the switching elements and the power supply when the controller switches between the display period and the non-display period.

    TOUCH DRIVE DEVICE, TOUCH DETECTION DEVICE AND DISPLAY DEVICE HAVING TOUCH DETECTION FUNCTION
    8.
    发明申请
    TOUCH DRIVE DEVICE, TOUCH DETECTION DEVICE AND DISPLAY DEVICE HAVING TOUCH DETECTION FUNCTION 有权
    触摸屏驱动装置，触摸检测装置和具有触摸检测功能的显示装置

    公开(公告)号：US20150277657A1

    公开(公告)日：2015-10-01

    申请号：US14674026

    申请日：2015-03-31

    Applicant: Japan Display Inc.

    Inventor： Kohei Azumi ,  Hidetoshi Komatsu ,  Jin Ota ,  Hiroshi Mizuhashi ,  Makoto Hayashi

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

    CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2310/0286 ,  G11C19/28

    Abstract: According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal (TSVCOM) is supplied can be designated.

    Abstract translation: 根据一个实施例，触摸驱动装置包括并排布置以沿单个方向延伸的多个驱动电极，沿与驱动电极延伸的方向交叉的方向延伸的检测电极，并且在 检测电极和驱动电极以及驱动器（DDI），其将驱动电极组合成多个驱动电极部分，每个驱动电极部分包括至少一个驱动电极，并且通过提供具有至少一个驱动电极的触摸驱动信号（TSVCOM）来进行触摸扫描驱动， 脉冲波形，用于检测与被选择的一个驱动电极部分的目标驱动电极部分紧密对置的外部物体。 可以指定包括在提供触摸驱动信号（TSVCOM）的每个驱动电极部分和目标驱动电极部分中的驱动电极的数量。

    Display device
    9.
    发明授权
    Display device 有权

    公开(公告)号：US10789899B2

    公开(公告)日：2020-09-29

    申请号：US15957336

    申请日：2018-04-19

    Applicant: Japan Display Inc.

    Inventor： Kojiro Ikeda ,  Masaaki Kabe ,  Jin Ota

    IPC: G09G3/36 ,  G09G3/00

    Abstract: According to an aspect, a display device includes an image display panel including: sub-pixel rows, in each of which sub-pixels for displaying different colors are periodically arrayed in a first direction, are regularly arranged in a second direction different from the first direction; signal lines in parallel to sub-pixel columns in which the sub-pixels are successively arranged in the second direction; and scan lines that sequentially select each sub-pixel row. Each of m (integer ≥2) selector signals selects n (integer ≥1) pairs of the signal lines each supplied with two signals each having a mutually reverse polarity, within a period during which each sub-pixel row is selected by a corresponding scan line, and a sum of potential changes of the n pairs of the signal lines selected by each selector signal is substantially zero when each sub-pixel row is sequentially selected by the corresponding scan line.

    TOUCH DRIVE DEVICE
    10.
    发明申请
    TOUCH DRIVE DEVICE 审中-公开

    公开(公告)号：US20190138146A1

    公开(公告)日：2019-05-09

    申请号：US16238833

    申请日：2019-01-03

    Applicant: Japan Display Inc.

    Inventor： Kohei AZUMI ,  Hidetoshi Komatsu ,  Jin Ota ,  Hiroshi Mizuhashi ,  Makoto Hayashi

    IPC: G06F3/041 ,  G11C19/28 ,  G09G3/36 ,  G06F3/044

    CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2310/0286 ,  G11C19/28

    Abstract: According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal. (TSVCOM) is supplied can be designated.

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