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    Touch display device and touch sensing circuit
    13.
    发明授权
    Touch display device and touch sensing circuit 有权

    公开(公告)号：US11243644B2

    公开(公告)日：2022-02-08

    申请号：US16726530

    申请日：2019-12-24

    Applicant: LG Display Co., Ltd.

    Inventor： Suyun Ju ,  HyungUk Jang ,  Sungsu Han ,  DoYoung Jung ,  SangHyuck Bae ,  Jongsung Kim

    IPC: G06F3/041 ,  G06F3/038 ,  G06F3/0354 ,  G06F3/0484 ,  G06F3/044

    Abstract: A touch display device comprises a touch panel including a plurality of touch electrodes; and a touch driving circuit configured to sense one or more of the plurality of touch electrodes, wherein the touch driving circuit has an operation period including a plurality of touch intervals that includes a first sensing interval and a second sensing interval, and the first sensing interval includes at least a first time division sensing interval and the second sensing interval includes at least a second time division sensing interval, and wherein the touch driving circuit is configured to detect a pen signal output from a first pen through one or more touch electrodes of the plurality of touch electrodes during the first time division sensing interval, and detect a pen signal output from a second pen through one or more touch electrodes of the plurality of touch electrodes during the second time division sensing interval.

    TOUCH DISPLAY DEVICE, TOUCH SYSTEM, TOUCH DRIVING CIRCUIT, PEN, AND PEN SENSING METHOD
    16.
    发明申请
    TOUCH DISPLAY DEVICE, TOUCH SYSTEM, TOUCH DRIVING CIRCUIT, PEN, AND PEN SENSING METHOD 审中-公开

    公开(公告)号：US20190204939A1

    公开(公告)日：2019-07-04

    申请号：US16233537

    申请日：2018-12-27

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Suyun Ju ,  HyungUk Jang ,  SangHyuck Bae ,  Sungsu Han ,  DoYoung Jung

    IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/01 ,  G06F3/0488

    Abstract: The aspects of the present disclosure relate to a touch display device, a touch system, a touch driving circuit, a pen, and a pen sensing method, and more particularly, to a touch display device, a touch system, a touch driving circuit, a pen, and a pen sensing method, which may receive a first downlink signal and a second downlink signal output from a pen through all or some of a plurality of touch electrodes and may sense the pen based on received signal strength for each touch electrode for the first downlink signal and received signal strength for each touch electrode for the second downlink signal. According to the aspects of the present disclosure, the pen may be accurately sensed even when a user uses the pen in a tilted manner.

    LIQUID CRYSTAL DISPLAY DEVICE USING IN-CELL TOUCH MODE AND METHOD FOR MANUFACTURING THE SAME
    17.
    发明申请
    LIQUID CRYSTAL DISPLAY DEVICE USING IN-CELL TOUCH MODE AND METHOD FOR MANUFACTURING THE SAME 有权
    使用细胞触摸模式的液晶显示装置及其制造方法

    公开(公告)号：US20160187696A1

    公开(公告)日：2016-06-30

    申请号：US14980174

    申请日：2015-12-28

    Applicant: LG Display Co., Ltd.

    Inventor： JinSeong Kim ,  CheolSe Kim ,  JuHan Kim ,  SungChul Kim ,  SangHyuck Bae

    IPC: G02F1/1333 ,  G06F3/044 ,  G02F1/1362 ,  G06F3/041 ,  G02F1/1335 ,  G02F1/1368

    CPC classification number: G02F1/13338 ,  G02F1/136286 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103

    Abstract: A liquid crystal display (LCD) device includes a lower substrate and an upper substrate disposed to face each other and having a liquid crystal layer interposed therebetween, black matrices provided on the lower substrate, a color filter provided between the black matrices, and a common electrode provided on the entire surface of the lower substrate, a gate line and a data line provided on the upper substrate and intersect with each other to define a pixel area, a thin film transistor (TFT) present in the pixel area of the upper substrate, and a pixel electrode electrically in contact with the TFT, wherein a sensing signal is output by detecting a change in self-capacitance between a touch object contacting the upper substrate and the gate line and the data line.

    Abstract translation: 液晶显示器（LCD）装置包括：下基板和上基板，其设置成彼此面对并具有介于其间的液晶层，设置在下基板上的黑矩阵，设置在黑矩阵之间的滤色器和公共 设置在下基板的整个表面上的电极，栅极线和数据线，设置在上基板上并彼此相交以限定像素区域，存在于上基板的像素区域中的薄膜晶体管（TFT） 以及与TFT电接触的像素电极，其中通过检测与上基板接触的触摸物体与栅极线与数据线之间的自电容的变化来输出感测信号。

    Touch screen device
    18.
    发明授权
    Touch screen device 有权

    公开(公告)号：US11467679B2

    公开(公告)日：2022-10-11

    申请号：US14959337

    申请日：2015-12-04

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Suyun Ju ,  SungChul Kim ,  SangHyuck Bae ,  Sungsu Han ,  DoYoung Jung

    IPC: G06F3/038 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/044

    Abstract: Disclosed is a touch screen device for transmitting button manipulation information based on a touch pen without using a separate wireless communication module. The touch screen device includes a touch screen including a plurality of touch electrodes, a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes, and a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes and transmitting a pen output signal to the touch screen in response to the received touch electrode driving signal. The touch pen includes at least one button, and when a user manipulates the at least one button, the touch pen adjusts the pen output signal.

    Touch display device, pen, touch system, touch circuit, and pen recognition method
    19.
    发明授权
    Touch display device, pen, touch system, touch circuit, and pen recognition method 有权

    公开(公告)号：US11029790B2

    公开(公告)日：2021-06-08

    申请号：US16802236

    申请日：2020-02-26

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Suyun Ju ,  HyungUk Jang ,  SangHyuck Bae ,  DoYoung Jung ,  SeungSeok Oh ,  Sungsu Han

    IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044

    Abstract: A touch display device may include: a panel including a plurality of touch electrodes, and a touch circuit configured to: transfer a panel driving signal to the panel, and receive a pen information signal, output from a pen in response to the panel driving signal, through the panel, each of the panel driving signal and the pen information signal including a plurality of pulses, the pen information signal including one or more state sections among: an in-phase state section including pulses in phase with the pulses of the panel driving signal, an antiphase state section including pulses having a different phase from the pulses of the panel driving signal, and a passive state section distinguished from the in-phase state section and the antiphase state section.

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