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    Driving Circuit, Touch Display Device, and Method of Driving the Touch Display Device
    13.
    发明申请
    Driving Circuit, Touch Display Device, and Method of Driving the Touch Display Device 审中-公开

    公开(公告)号：US20180088729A1

    公开(公告)日：2018-03-29

    申请号：US15829671

    申请日：2017-12-01

    Applicant: LG Display Co., Ltd.

    Inventor： Seungkyeom KIM ,  SungChul KIM ,  Sungsu HAN ,  JiYeon PARK

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044

    Abstract: A driving circuit, a touch display device, and a method of driving the touch display device. A plurality of first electrodes are disposed within a display panel. A second electrode is disposed outside of the display panel. A driving circuit detects at least one of a touch position and a touching force of a touch by sequentially applying a first electrode driving signal to at least one first electrode among the plurality of first electrodes and applying a second electrode driving signal to the second electrode in a touch driving period. When a user touches a screen, not only can a touch position be sensed, but also a touching force with which the user presses the screen can also be efficiently sensed. This provides a range of functions that existing touch position-detecting technologies have failed to provide.

    TOUCH SCREEN DEVICE
    15.
    发明申请
    TOUCH SCREEN DEVICE 有权
    触摸屏设备

    公开(公告)号：US20160188006A1

    公开(公告)日：2016-06-30

    申请号：US14961203

    申请日：2015-12-07

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Sungsu HAN ,  SungChul KIM ,  SangHyuck BAE ,  Suyun JU ,  DoYoung JUNG

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

    CPC classification number: G06F3/0383 ,  G06F3/03545 ,  G06F3/038 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

    Abstract: Disclosed is a touch screen device for accurately detecting a touch by using a touch pen without having a separate sensor provided in a touch panel. 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, synchronized with the received touch electrode driving signal, to the touch screen.

    Abstract translation: 公开了一种用于通过使用触摸笔来精确检测触摸的触摸屏设备，而不需要在触摸面板中设置单独的传感器。 触摸屏装置包括具有多个触摸电极的触摸屏，向多个触摸电极施加触摸电极驱动信号的触摸驱动电路，以及接收施加到多个触摸电极的触摸电极驱动信号的触摸笔，以及 将与所接收的触摸电极驱动信号同步的笔输出信号发送到触摸屏。

    Touch Display Device, Data Driving Circuit, and Driving Method
    16.
    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.

    Display Device with Integrated Touch Screen and Method for Driving the Same
    18.
    发明申请
    Display Device with Integrated Touch Screen and Method for Driving the Same 审中-公开

    公开(公告)号：US20190129540A1

    公开(公告)日：2019-05-02

    申请号：US16230984

    申请日：2018-12-21

    Applicant: LG Display Co., Ltd.

    Inventor： JungHan LEE ,  HongChul KIM ,  SungChul KIM ,  JeongSeop LEE ,  SeungEun PYO

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416

    Abstract: Discussed are a display device with an integrated touch screen and a method of operating the same. The display device according to an embodiment includes a display panel including a plurality of pixel electrodes; a touch screen including m number of electrodes which are formed to overlap with the plurality of pixel electrodes, wherein m is a multiple of n, and n is an integer equal to or greater than two, and wherein the m electrodes are divided into n number of electrode groups; a touch driver configured to generate a touch scan signal and to supply the generated touch scan signal to a display driver; and the display driver configured to apply a common voltage or the touch scan signal to one or more of the m electrodes depending on a driving mode of the display device.

    TOUCH DISPLAY DEVICE, TOUCH DRIVING CIRCUIT AND METHOD FOR DRIVING THEREOF
    19.
    发明申请
    TOUCH DISPLAY DEVICE, TOUCH DRIVING CIRCUIT AND METHOD FOR DRIVING THEREOF 审中-公开

    公开(公告)号：US20180150173A1

    公开(公告)日：2018-05-31

    申请号：US15803022

    申请日：2017-11-03

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Sungsu HAN ,  SungChul KIM

    IPC: G06F3/041 ,  G06F3/044

    Abstract: The present exemplary embodiments relate to a touch display device and a driving method thereof. According to the present exemplary embodiments, when a touch of the user is sensed during a touch sensing period of each frame, the touch force is sensed by being limited to an area determined based on the sensed touch position, thereby efficiently sensing the touch force. In this case, the touch force sensing is repeated for a limited area during the force sensing period of each frame, so that the touch force sensing report rate is improved. Further, the touch force sensing is performed only during the force sensing period of a frame allocated to a limited area so that power consumption according to the touch force sensing is reduced and the precision for sensing a touch force may be maintained.

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