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    Touch Screen Device and Method of Driving the Same
    31.
    发明申请
    Touch Screen Device and Method of Driving the Same 有权
    触摸屏设备及其驱动方法

    公开(公告)号：US20160188041A1

    公开(公告)日：2016-06-30

    申请号：US14942370

    申请日：2015-11-16

    Applicant: LG Display Co., Ltd.

    Inventor： SungChul Kim ,  CheolSe Kim

    IPC: G06F3/044

    CPC classification number: G06F3/044 ,  G06F3/0412

    Abstract: Disclosed are a touch screen device and a method of driving the same, which minimize an influence of parasitic capacitance of a touch electrode and sense a voltage charged into capacitance(s) of the touch electrode. The touch screen device includes a touch electrode, a touch driving line connected to the touch electrode, a touch driving voltage output unit connected to the touch driving line through a first switch to output a touch driving voltage, a current source connected to the touch driving line through a second switch to discharge electrical charges charged into parasitic capacitance of the touch electrode according to a predetermined discharge current, and a touch voltage sensing unit connected to the touch driving line through a third switch to sense a voltage charged into each of finger capacitance and the parasitic capacitance of the touch electrode.

    Abstract translation: 公开了一种触摸屏装置及其驱动方法，其使接触电极的寄生电容的影响最小化，并感测充电到触摸电极的电容的电压。 触摸屏装置包括触摸电极，连接到触摸电极的触摸驱动线，触摸驱动电压输出单元，通过第一开关连接到触摸驱动线以输出触摸驱动电压;连接到触摸驱动的电流源 线路通过第二开关，以根据预定的放电电流来充电到触摸电极的寄生电容的电荷;以及触摸电压感测单元，其通过第三开关连接到触摸驱动线，以感测充电到每个手指电容 和触摸电极的寄生电容。

    Display Device with Integrated Touch Screen and Method for Driving the Same
    32.
    发明申请
    Display Device with Integrated Touch Screen and Method for Driving the Same 有权
    具有集成触摸屏的显示设备及其驱动方法

    公开(公告)号：US20150261361A1

    公开(公告)日：2015-09-17

    申请号：US14724728

    申请日：2015-05-28

    Applicant: LG Display Co., Ltd.

    Inventor： Junghan Lee ,  SungChul Kim

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

    CPC classification number: G06F3/044 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04101 ,  G09G3/36 ,  G09G3/3674 ,  G09G3/3677 ,  G09G3/3685 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/0272 ,  G09G2310/0278

    Abstract: A display device with an integrated touch screen including a display panel including electrodes divided into a plurality of block type groups and a plurality of data lines; a display driver IC configured to apply a common voltage to the electrodes when a driving mode of the panel is a display driving mode, sequentially apply a touch scan signal to each block type group when the driving mode of the panel is a touch driving mode, and apply a data signal to the data lines associated with a corresponding block type group when the touch scan signal is applied to the corresponding block type group; and a touch IC configured to generate the touch scan signal and apply the touch scan signal to the display driver IC.

    Abstract translation: 一种具有集成触摸屏的显示装置，包括：显示面板，包括分为多个块类型组和多个数据线的电极; 配置为当面板的驱动模式为显示驱动模式时向电极施加公共电压的显示驱动器IC，当面板的驱动模式为触摸驱动模式时，顺序地向每个块类型组施加触摸扫描信号， 并且当将触摸扫描信号应用于对应的块类型组时，将数据信号应用于与相应块类型组相关联的数据线; 以及配置为产生触摸扫描信号并将触摸扫描信号施加到显示驱动器IC的触摸IC。

    Display Device and Display Panel
    33.
    发明申请
    Display Device and Display Panel 有权

    公开(公告)号：US20250004601A1

    公开(公告)日：2025-01-02

    申请号：US18738648

    申请日：2024-06-10

    Applicant: LG Display Co., Ltd.

    Inventor： SungChul Kim ,  DeukSu Lee

    IPC: G06F3/044 ,  G06F3/041 ,  H10K59/40

    Abstract: A display device and a display panel may comprise a substrate comprising a display area including a plurality of subpixels and a non-display area including a pad area spaced apart from the display area in a first direction, a first sensor electrode in the display area and extending in a second direction crossing the first direction, a second sensor electrode in the display area and extending in the second direction, a first pad in the pad area, a second pad in the pad area, a first trace line electrically connecting the first sensor electrode and the first pad and a second trace line electrically connecting the second sensor electrode and the second pad. The second sensor electrode may be positioned closer to the pad area than the first sensor electrode. The first trace line overlaps the second sensor electrode, and the second trace line may include a first meandering portion.

    Display device
    35.
    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
    36.
    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.

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