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    Liquid Crystal Display Device and Method of Driving the Same
    31.
    发明申请
    Liquid Crystal Display Device and Method of Driving the Same 有权
    液晶显示装置及其驱动方法

    公开(公告)号：US20130293498A1

    公开(公告)日：2013-11-07

    申请号：US13887507

    申请日：2013-05-06

    Applicant: LG DISPLAY CO., LTD.

    Inventor： CheolSe Kim ,  HoonBae Kim

    IPC: G09G3/36

    CPC classification number: G09G3/3696 ,  G02F1/13338 ,  G02F1/134309 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

    Abstract: Disclosed is an LCD device and a method of driving the same. The LCD device includes a liquid crystal panel configured to comprise a TFT substrate and a color filter substrate; a touch panel configured to comprise a plurality of driving electrodes and a plurality of receiving electrodes; a common voltage generator configured to generate a common voltage; a touch sensing unit configured to supply the common voltage to the driving electrodes and sequentially supply a driving voltage to scanned driving electrodes, corresponding to scanned gate lines to which a scan signal has been inputted for one frame period, to detect a touch; and a driving voltage generator configured to generate the driving voltage.

    Abstract translation: 公开了一种LCD装置及其驱动方法。 LCD装置包括：液晶面板，被配置为包括TFT基板和滤色器基板; 触摸面板，被配置为包括多个驱动电极和多个接收电极; 配置为产生公共电压的公共电压发生器; 触摸感测单元，被配置为向驱动电极提供公共电压，并且对与扫描信号已经输入了一帧周期的扫描的栅极线对应的扫描驱动电极顺序地提供驱动电压，以检测触摸; 以及被配置为产生驱动电压的驱动电压发生器。

    Display device
    33.
    发明授权
    Display device 有权

    公开(公告)号：US11861091B2

    公开(公告)日：2024-01-02

    申请号：US17972448

    申请日：2022-10-24

    Applicant: LG Display Co., Ltd.

    Inventor： CheolSe Kim ,  SungChul Kim ,  HoonBae Kim ,  SunYeop Kim ,  Jinseong Kim ,  JuHan Kim ,  Haewon Lee

    IPC: G06F3/041 ,  G06F3/044 ,  H01L33/62 ,  H01L25/075

    CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/0446 ,  H01L25/0753 ,  H01L33/62

    Abstract: A display device includes a substrate including a plurality of sub pixels; a first touch electrode on the substrate and overlapping at least one subpixel from the plurality of sub pixels; a second touch electrode on the substrate and spaced apart from the first touch electrode and overlapping the at least one sub pixel; an insulating layer covering the first touch electrode and the second touch electrode; a plurality of charging transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a plurality of sensing transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a planarization layer covering the plurality of charging transistors and the plurality of sensing transistors; and a light emitting diode on the planarization layer.

    Touch display device, touch driving circuit and touch driving method thereof
    35.
    发明授权
    Touch display device, touch driving circuit and touch driving method thereof 有权

    公开(公告)号：US11740737B2

    公开(公告)日：2023-08-29

    申请号：US17507631

    申请日：2021-10-21

    Applicant: LG Display Co., Ltd.

    Inventor： Seongkyu Kang ,  SungChul Kim ,  HoonBae Kim ,  SunYeop Kim

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

    CPC classification number: G06F3/04184 ,  G06F3/0412 ,  G06F3/0448 ,  G06F3/04166 ,  G09G3/20 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08

    Abstract: Embodiments of the present disclosure relate to a touch display device, a touch driving circuit and a touch driving method thereof, and more particularly, a touch display device, a touch driving circuit and a touch driving method thereof enabling to reduce the distortion phenomenon of the common voltage caused by a load of the touch electrodes. In addition, embodiments of the present disclosure relate to a touch display device, a touch driving circuit and touch driving method thereof enabling reduction of the distortion phenomenon of the common voltage according to a structure of the touch electrodes. In addition, embodiments of the present disclosure relate to a touch display device, a touch driving circuit and touch driving method thereof enabling to reduce the distortion phenomenon of the common voltage generated in a driving process in which a display driving operation and a touch driving operation are alternated.

    Touch display device, driving method, and driving circuit
    40.
    发明授权
    Touch display device, driving method, and driving circuit 有权

    公开(公告)号：US10691259B2

    公开(公告)日：2020-06-23

    申请号：US16112320

    申请日：2018-08-24

    Applicant: LG Display Co., Ltd.

    Inventor： CheolSe Kim ,  HoonBae Kim ,  SunYeop Kim

    IPC: G06F3/041 ,  G09G3/20 ,  G06F3/044 ,  G06F3/01 ,  G09G3/36

    Abstract: Embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit. More particularly, embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit capable of preventing touch sensitivity from being affected by display driving even though simultaneously performing the display driving and touch driving by supplying a data voltage to a plurality of data lines disposed in a display panel, supplying a common voltage to a plurality of common electrodes disposed in the display panel, displaying an image through the display panel, and supplying a common voltage to the common electrodes.

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