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    Touch display device and touch sensing circuit
    4.
    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
    6.
    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.

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