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    Touch sensing system including active stylus pen
    13.
    发明授权
    Touch sensing system including active stylus pen 有权

    公开(公告)号：US10474280B2

    公开(公告)日：2019-11-12

    申请号：US15381410

    申请日：2016-12-16

    Applicant: LG Display Co., Ltd.

    Inventor： Hyunguk Jang ,  Cheolse Kim ,  Sungchul Kim ,  Sanghyuck Bae ,  Sungsu Han ,  Suyun Ju ,  Doyoung Jung

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

    Abstract: A touch sensing system is disclosed. The touch sensing system includes an active stylus pen that generates a first pen driving signal for detecting a touch input in synchronization with a touch driving signal input from a touch screen and a second pen driving signal for detecting an additional input related to an additional function of the active stylus pen in a touch driving period and outputs the first and second pen driving signals to the touch screen; and a touch driving device that applies the touch driving signal to the touch screen, senses the first pen driving signal in a first period of the touch driving period, and senses the second pen driving signal in a second period of the touch driving period.

    Driving circuit, touch display device, and method of driving the touch display device
    15.
    发明授权
    Driving circuit, touch display device, and method of driving the touch display device 有权

    公开(公告)号：US10082907B2

    公开(公告)日：2018-09-25

    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: G06F3/045 ,  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.

    Driving circuit, touch display device, and method of driving the touch display device
    17.
    发明授权
    Driving circuit, touch display device, and method of driving the touch display device 有权

    公开(公告)号：US09864459B2

    公开(公告)日：2018-01-09

    申请号：US15222876

    申请日：2016-07-28

    Applicant: LG Display Co., Ltd.

    Inventor： Seungkyeom Kim ,  SungChul Kim ,  Sungsu Han ,  JiYeon Park

    IPC: G06F3/045 ,  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 sensing system
    18.
    发明授权
    Touch sensing system 有权

    公开(公告)号：US09665221B2

    公开(公告)日：2017-05-30

    申请号：US14482127

    申请日：2014-09-10

    Applicant: LG Display Co., Ltd.

    Inventor： Sungsu Han ,  Seongkyu Kang

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04111

    Abstract: A touch sensing system includes a touch screen including touch sensors and sensing lines, the touch sensors and the sensing lines being divided into first and second sensing areas, a first touch sensing integrated circuit (IC) sensing a touch input of the first sensing area using a signal received through receiving channels, a second touch sensing IC sensing a touch input of the second sensing area using a signal received through receiving channels separated from the receiving channels of the first touch sensing IC, differential amplifiers between the sensing lines and the receiving channels of the first and second touch sensing ICs, and a switch connecting a sensing line, which is closest to the first sensing area among the sensing lines of the second sensing area, to an Nth differential amplifier connected to a last receiving channel of the first touch sensing IC.

    TOUCH SENSOR INTEGRATED TYPE DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    19.
    发明申请
    TOUCH SENSOR INTEGRATED TYPE DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME 有权
    触摸传感器集成型显示装置及其制造方法

    公开(公告)号：US20140160066A1

    公开(公告)日：2014-06-12

    申请号：US14026031

    申请日：2013-09-13

    Applicant: LG Display Co., Ltd.

    Inventor： Cheolse Kim ,  Juhan Kim ,  Hoonbae Kim ,  Sungsu Han ,  Jinseong Kim ,  Manhyeop Han

    IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044

    CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F2001/134372 ,  G02F2001/13629 ,  G06F3/044 ,  G06F2203/04103

    Abstract: A touch sensor integrated type display device includes a plurality of gate lines, a plurality of data lines crossing over the plurality of the gate lines, a plurality of pixel electrodes formed in areas defined by crossing over the gate lines and the data lines, a plurality of first electrodes formed between pixel electrodes which are neighbored to each other with a gate line therebetween, a plurality of second electrodes, each of the second electrodes formed to overlap with at least one portion of the pixel electrode and arranged in parallel with the gate line, wherein one of the first and second electrodes serve as common electrodes for driving the display device.

    Abstract translation: 一种触摸传感器集成型显示装置，包括多条栅极线，与多条栅极线交叉的多条数据线，形成在通过栅极线和数据线交叉定义的区域中的多个像素电极，多个 形成在彼此相邻并具有栅极线的像素电极之间的第一电极，多个第二电极，每个第二电极形成为与像素电极的至少一部分重叠并且与栅极线平行布置 其中，第一和第二电极中的一个用作用于驱动显示装置的公共电极。

    Touch display device
    20.
    发明授权
    Touch display device 有权

    公开(公告)号：US11803283B2

    公开(公告)日：2023-10-31

    申请号：US17964228

    申请日：2022-10-12

    Applicant: LG Display Co., Ltd.

    Inventor： Yangsik Lee ,  HwiDeuk Lee ,  Sungsu Han

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/0446 ,  G06F3/0412 ,  G06F3/0445 ,  G06F2203/04107

    Abstract: Embodiments of the present disclosure are related to a touch display device, as a portion of a touch routing line is disposed on an area surrounded by a touch electrode line on an active area and is electrically connected to the touch electrode line, the touch routing line can be disposed on the active area while reducing an influence of a noise. Thus, as an additional arrangement of the touch routing line and a free adjustment of a connecting point of the touch routing line become possible without an increase of an area for arranging the touch routing line, a load by the touch routing line and a difference of a sensitivity according to positions of the touch electrode line are reduced and a performance of a touch sensing can be improved.

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