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    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE
    11.
    发明申请
    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200019270A1

    公开(公告)日：2020-01-16

    申请号：US16504783

    申请日：2019-07-08

    Applicant: LG DISPLAY CO., LTD.

    Inventor： SeungMok SHIN ,  HoonBae KIM ,  SunYeop KIM ,  SungHoon LEE

    IPC: G06F3/041 ,  G06F1/26 ,  G06F3/044

    Abstract: The present disclosure relates to touch display panels and touch display devices. More specifically, the touch display panels and touch display devices provided are capable of performing display driving and touch driving simultaneously or together through a ground modulation scheme. Further, by separating a power source for driving a display controller D-CTR from a power source for driving a touch controller T-CTR, and controlling respective power sources independently, it is possible to reduce power consumption. Also, by enabling a power source for driving a ground modulation circuit to be variable, it is possible to provide functions based on touch sensing under a condition of reduced power consumption.

    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE
    13.
    发明申请
    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE 有权

    公开(公告)号：US20230004251A1

    公开(公告)日：2023-01-05

    申请号：US17942805

    申请日：2022-09-12

    Applicant: LG Display Co., Ltd.

    Inventor： HoonBae KIM ,  CheolSe KIM ,  SeungMok SHIN ,  JuHan KIM ,  YongChan PARK ,  HyunHo PARK

    IPC: G06F3/041 ,  G06F3/047 ,  G09G3/20 ,  G06F3/044

    Abstract: Embodiments disclosed herein relate to a touch display panel and a touch display device. By arranging a shielding structure, which is connected to a touch electrode in a region where a touch line and a data line overlap each other or is applied with a shielding signal corresponding to a touch driving signal from an outside circuit, between the touch line and the data line, it is possible to prevent direct capacitance from being formed between the touch line and the data line, and to prevent the capacitance formed due to the data line from causing noise on a touch sensing signal. In addition, by arranging a touch load reduction layer between the shielding structure and the touch line, it is also possible to reduce the capacitance between the touch line and the data line arranged in the horizontal direction, thereby improving touch sensing performance.

    Touch Display Device, Driving Method, and Driving Circuit
    14.
    发明申请
    Touch Display Device, Driving Method, and Driving Circuit 有权

    公开(公告)号：US20210405757A1

    公开(公告)日：2021-12-30

    申请号：US17469455

    申请日：2021-09-08

    Applicant: LG Display Co., Ltd.

    Inventor： CheolSe KIM ,  HoonBae KIM ,  SunYeop KIM

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

    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.

    Touch Display Device, Data Driving Circuit, and Driving Method
    15.
    发明申请
    Touch Display Device, Data Driving Circuit, and Driving Method 有权

    公开(公告)号：US20210223938A1

    公开(公告)日：2021-07-22

    申请号：US17224597

    申请日：2021-04-07

    Applicant: LG Display Co., Ltd.

    Inventor： HoonBae KIM ,  CheolSe KIM ,  SungChul KIM ,  SunYeop KIM ,  Seongkyu KANG

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

    Abstract: A touch display device, a data driving circuit, and a driving method are provided. The touch display device, the data driving circuit, and the driving method convert an image digital signal into an image analog signal in response to a gamma reference voltage which is applied to the touch electrodes arranged in the display panel and which is modulated in synchronization with a first touch electrode driving signal swinging with a first amplitude and output a data signal corresponding to the converted image analog signal to the data lines. Accordingly, it is possible to effectively simultaneously perform display and touch sensing.

    Touch Display Device, Touch System, Driving Circuit, and Driving Method
    17.
    发明申请
    Touch Display Device, Touch System, Driving Circuit, and Driving Method 审中-公开

    公开(公告)号：US20190171320A1

    公开(公告)日：2019-06-06

    申请号：US16197285

    申请日：2018-11-20

    Applicant: LG Display Co., Ltd.

    Inventor： HoonBae KIM ,  CheolSe KIM ,  SangHyuck BAE

    IPC: G06F3/041 ,  G06F3/0354

    Abstract: The present embodiments relate to a touch display device, a touch system, a driving circuit, and a driving method. The touch display device may include a display panel configured to have a plurality of data lines, a plurality of gate lines, and a plurality of common electrodes, which are arranged thereon, and a driving circuit configured to supply an uplink signal to at least a subset of the plurality of common electrodes disposed in at least a first region of the display panel during the display blank period to enable the pen to detect the uplink signal when the pen is in contact with or is adjacent to the display panel.

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