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    DISPLAY APPARATUS WITH TOUCH SENSOR
    3.
    发明申请
    DISPLAY APPARATUS WITH TOUCH SENSOR 审中-公开

    公开(公告)号：US20200027416A1

    公开(公告)日：2020-01-23

    申请号：US16510257

    申请日：2019-07-12

    Applicant: LG Display Co., Ltd.

    Inventor： Jaeseung KIM ,  HwiDeuk LEE ,  Yangsik LEE

    IPC: G09G3/36 ,  G02F1/1345 ,  G09G3/3208 ,  G06F3/041 ,  H01L29/786

    Abstract: A display apparatus includes a substrate including an active area where a plurality of pixels is connected to gate lines and data lines intersecting with each other, and a non-active area where a plurality of lines for transmitting signals for driving the plurality of pixels is disposed; a touch signal generation circuit disposed on the non-active area, receiving a touch clock signal and outputting a touch driving signal; and a touch sensor part receiving the touch driving signal and generating touch information on a touch point at the active area.

    TOUCH DISPLAY PANEL, TOUCH DISPLAY DEVICE, AND DRIVING METHOD THEREOF
    5.
    发明申请
    TOUCH DISPLAY PANEL, TOUCH DISPLAY DEVICE, AND DRIVING METHOD THEREOF 审中-公开

    公开(公告)号：US20200026408A1

    公开(公告)日：2020-01-23

    申请号：US16517163

    申请日：2019-07-19

    Applicant: LG DISPLAY CO., LTD.

    Inventor： HwiDeuk LEE ,  Sangkyu KIM ,  Taeyun KIM ,  Yangsik LEE ,  Jaeseung KIM

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

    Abstract: Discussed are a touch display panel, a touch display device, and a driving method thereof, wherein a constant voltage is applied to a cathode electrode during a period for sensing a finger touch or a pen touch, thereby performing touch sensing while performing display driving. In addition, a signal having the same phase and potential as the signal applied to the touch electrode is applied to the cathode electrode during a period for transmitting an uplink signal to the pen, thereby eliminating parasitic capacitance between the touch electrode and the cathode electrode, preventing transmission delay of the uplink signal, improving the recognition rate of the uplink signal, and enhancing the performance of pen-touch sensing.

    Touch Display Device and Method for Driving Thereof
    7.
    发明申请
    Touch Display Device and Method for Driving Thereof 审中-公开

    公开(公告)号：US20180348931A1

    公开(公告)日：2018-12-06

    申请号：US15813098

    申请日：2017-11-14

    Applicant: LG Display Co., Ltd.

    Inventor： Jaeseung KIM ,  JiHyun JUNG ,  DeukSu LEE ,  Sangkyu KIM ,  JaeGyun LEE ,  Taeyun KIM

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3225

    Abstract: The present exemplary embodiments relate to a touch display device and a driving method thereof. A touch sensing time period is divided into a period when the touch is sensed by a self capacitive sensing manner and a period when the touch is sensed by a mutual capacitive sensing manner and a ground signal modulated to be the same as the touch driving signal is output to the display panel during the time period when the touch is sensed by the self capacitive sensing manner. By doing this, the parasitic capacitance in the display panel is reduced, sensitivity of touch sensing is improved, and various touch functions are provided.

    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE
    9.
    发明申请
    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200167037A1

    公开(公告)日：2020-05-28

    申请号：US16525488

    申请日：2019-07-29

    Applicant: LG Display Co., Ltd.

    Inventor： HwiDeuk LEE ,  Yangsik LEE ,  Jaeseung KIM

    IPC: G06F3/044 ,  G06F3/041 ,  H01L27/32 ,  H01L51/52

    Abstract: Example embodiments of the present disclosure relate to a touch display device. In one example, a touch display device includes a substrate including an active area in which multiple subpixels are arranged and a nonactive area positioned outside the active area; wherein each of the multiple subpixels includes a first electrode, an organic light emitting layer and a second electrode on the organic light emitting layer; an encapsulation layer arranged on the second electrode; a plurality of touch electrodes and a plurality of touch routing wires arranged on the encapsulation layer; a touch sensing circuit configured to drive the plurality of touch electrodes through the plurality of touch routing wires; multiple connection patterns arranged on the encapsulation layer in the active area so as to electrically connect at least a portion of the plurality of touch electrodes to each other; multiple first compensation patterns arranged in the nonactive area and electrically connected to the plurality of touch routing wires; and multiple second compensation patterns arranged on the encapsulation layer corresponding to the multiple first compensation patterns.

    DISPLAY APPARATUS WITH TOUCH SENSOR
    10.
    发明申请
    DISPLAY APPARATUS WITH TOUCH SENSOR 审中-公开

    公开(公告)号：US20200026376A1

    公开(公告)日：2020-01-23

    申请号：US16507622

    申请日：2019-07-10

    Applicant: LG Display Co., Ltd.

    Inventor： Yangsik LEE ,  HwiDeuk LEE ,  Jaeseung KIM

    IPC: G06F3/044 ,  G06F3/041

    Abstract: A display device includes a display panel; a touch sensor sensing a capacitance of a plurality of nodes corresponding to a plurality of touch points on the display panel, wherein plurality of nodes includes a center node and a peripheral node surrounding the center node; a touch controller sensing a touch by detecting a capacitance change of the center node and the peripheral node, wherein the capacitance change of the center node is greater than the peripheral node; and a conductive layer disposed over the touch sensor that increases the capacitance change of the peripheral node.

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