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    Touch detecting apparatus and touch detecting method using pixel or pixels in display devices
    11.
    发明授权
    Touch detecting apparatus and touch detecting method using pixel or pixels in display devices 有权

    公开(公告)号：US10474261B2

    公开(公告)日：2019-11-12

    申请号：US15375011

    申请日：2016-12-09

    申请人： G2TOUCH Co., LTD

    发明人： Sung Ho Lee

    IPC分类号： G06F3/044 ,  G09G3/3208 ,  G06F3/041

    摘要： Disclosed herein are a touch detecting apparatus and a touch detecting method using a pixel or pixels in display devices including a means for applying an AC input voltage to a drive IC of the display device and detecting a change in touch capacitance between the pixel and an object in synchronization with a change in amplitude of the AC input voltage. In particular, the touch detecting apparatus using a pixel or pixels in display devices according to an exemplary embodiment of the present invention includes: a grayscale voltage generator applying a grayscale voltage to a source line and a sensing signal processor detecting a touch signal based on a feedback voltage of the grayscale voltage applied to the source line.

    Touch signal detection apparatus and touch signal detection method
    13.
    发明授权
    Touch signal detection apparatus and touch signal detection method 有权

    公开(公告)号：US09772733B2

    公开(公告)日：2017-09-26

    申请号：US14961593

    申请日：2015-12-07

    申请人： G2TOUCH Co., LTD

    发明人： Sung Ho Lee

    IPC分类号： G06F3/041 ,  G06F3/044

    CPC分类号： G06F3/044 ,  G06F3/0416 ,  G06F2203/04107

    摘要： Disclosed herein is a capacitive touch input apparatus of a human finger or a touch input means having conductive characteristics similar thereto, and more particularly, are a touch signal detection apparatus and a touch signal detection method capable of being widely used for a touch detection sensor having different array arrangements. According to the touch signal detection apparatus and the touch signal detection method according to the present invention, one touch signal detection apparatus may be widely used for the touch detection sensor having different arrays by using a re-map technology. According to the touch signal detection apparatus and the touch signal detection method according to the present invention, it is possible to save costs using the same touch signal detection apparatus without producing the separate touch signal detection apparatus for a display device including the touch detection sensor having different arrays.

    Touch detection device, touch detection method and touch screen panel, using driving back phenomenon, and display device with built-in touch screen panel
    14.
    发明授权
    Touch detection device, touch detection method and touch screen panel, using driving back phenomenon, and display device with built-in touch screen panel 有权

    公开(公告)号：US09703438B2

    公开(公告)日：2017-07-11

    申请号：US14800991

    申请日：2015-07-16

    申请人： G2TOUCH Co., LTD.

    发明人： Sung Ho Lee

    IPC分类号： G06F3/044 ,  G09G3/36 ,  G06F3/0354 ,  G06F3/041

    CPC分类号： G06F3/044 ,  G06F3/03545 ,  G06F3/0416 ,  G06F2203/04104 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/08

    摘要： Provided is a touch detection device, touch detection method, and touch screen panel, which detects a touch signal by detecting a driving back phenomenon occurring in a touch pad by a driving voltage applied to a driving capacitor, and a display device with a built-in touch screen panel. The touch detection device that is added on top of a display device and detects occurrence of a touch capacitance (Ct) by an approach of a bodily finger (25) or a touch input instrument such as a conductor similar to the bodily finger, the touch detection device comprising: a touch pad (10) that forms the touch capacitance (Ct) between the touch input instrument and the touch pad; a driving capacitor (Cdrv) whose one side is connected to the touch pad (10) and to the other side of which a driving voltage for detection of a touch input is applied; a common voltage detector that detects a common voltage generated from the display device; a driving voltage generator that generates the driving voltage in synchronization with the common voltage; and a touch detector that is connected to the touch pad (10), and that detects a touch signal by using a driving back phenomenon when the touch capacitance (Ct) is added to the driving capacitor (Cdrv) according to occurrence or non-occurrence of a touch in the touch input instrument. A touch signal is detected while avoiding a point in time of a change of a common voltage state, and a driving voltage is applied through a driving capacitor connected to a touch detector, to thus detect whether or not a driving back phenomenon occurs in the touch detector and to thereby acquire a touch signal. Accordingly, an influence due to parasitic capacitance generated by noise, coupling phenomenon or other factors is minimized, to thus acquire a touch signal stably.

    TOUCH SIGNAL DETECTION APPARATUS AND TOUCH SIGNAL DETECTION METHOD
    17.
    发明申请
    TOUCH SIGNAL DETECTION APPARATUS AND TOUCH SIGNAL DETECTION METHOD 审中-公开
    触摸信号检测装置和触摸信号检测方法

    公开(公告)号：US20160170531A1

    公开(公告)日：2016-06-16

    申请号：US14964293

    申请日：2015-12-09

    申请人： G2TOUCH Co., LTD

    发明人： Sung Ho LEE

    IPC分类号： G06F3/044 ,  G06F3/041

    CPC分类号： G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04104

    摘要： Disclosed herein is a capacitive touch input apparatus of a human finger or a touch input means having conductive characteristics similar thereto, and more particularly, a touch signal detection apparatus and a touch signal detection method capable of improving a touch detection resolution by minimizing or excluding a signal interference between touch detection signals upon detecting touch signals. According to the touch signal detection apparatus and the touch signal detection method according to the present invention, it is possible to improve a touch detection resolution by removing an interference between the touch signals even in the case of a multi touch. According to the touch signal detection apparatus and the touch signal detection method according to the present invention, it is possible to easily detect the touch signals and minimize the effect on a display device to maximize a display quality of the display device.

    摘要翻译： 本文公开了一种人手指的电容式触摸输入装置或具有与之类似的导电特性的触摸输入装置，更具体地，涉及一种触摸信号检测装置和触摸信号检测方法，其能够通过最小化或排除 检测触摸信号时触摸检测信号之间的信号干扰。 根据本发明的触摸信号检测装置和触摸信号检测方法，即使在多触摸的情况下，也可以通过消除触摸信号之间的干扰来提高触摸检测分辨率。 根据本发明的触摸信号检测装置和触摸信号检测方法，可以容易地检测触摸信号并使对显示装置的影响最小化，以使显示装置的显示质量最大化。

    Device and method for detecting capacitive touch signal
    19.
    发明授权
    Device and method for detecting capacitive touch signal 有权

    公开(公告)号：US10545619B2

    公开(公告)日：2020-01-28

    申请号：US15555050

    申请日：2016-02-23

    申请人： G2TOUCH Co., LTD

    发明人： Sung Ho Lee

    IPC分类号： G06F3/044 ,  G06F3/041 ,  H03K17/96

    摘要： The present invention relates to a device and a method for detecting a capacitive touch signal of a finger of a human body or a touch input means having similar conductive properties to the finger, and relates to a device and a method for detecting a capacitive touch signal, in which alternating driving voltage is applied to one side of a sensing equivalent capacitor formed between a sensing pad and a non-sensing pad, and a touch detection unit detects a voltage difference generated from the sensing pad according to the occurrence or non-occurrence of a touch, thereby determining whether the touch occurs or not.

    Touch detection sensor structure of capacitive type touch screen panel
    20.
    发明授权
    Touch detection sensor structure of capacitive type touch screen panel 有权

    公开(公告)号：US09886151B2

    公开(公告)日：2018-02-06

    申请号：US14963721

    申请日：2015-12-09

    申请人： G2TOUCH Co., LTD

    发明人： Sung Ho Lee

    IPC分类号： G06F3/044 ,  G06F3/041

    CPC分类号： G06F3/044 ,  G06F3/0416 ,  G06F2203/04104

    摘要： The present invention proposes to solve the problems of the existing capacitive type touch screen panel as described above and an object of the present invention is to differently dispose positions of sensors 10 configuring a touch screen panel in each column or each row, that is, differently disposing touch detection sensors in each column or each row of the touch panel to extract optimal conditions of a separation, thereby more reducing the number of touch sensors 10 compared to a stripe structure which has to reduce a length of a basic sensor to satisfy the same separation conditions.