公开(公告)号：US10133431B2

公开(公告)日：2018-11-20

申请号：US15193881

申请日：2016-06-27

申请人： G2TOUCH Co., LTD

发明人： Sung Ho Lee

IPC分类号： G06F3/041 ,  G06F3/044

摘要： The present invention relates to a touch panel capable of detecting a capacitive touch input of a finger of a human body or a touch input tool having conduction characteristics similar to those of the finger, and more particularly, to a structure of a touch panel having a high resolution so as to detect a touch input tool having a diameter smaller than a unit pi. In a touch panel having a high resolution according to an exemplary embodiment of the present invention, it is possible to maintain high touch sensitivity while minimizing a change in structures of touch patterns depending on a size or a purpose of the touch panel.

公开(公告)号：US10048818B2

公开(公告)日：2018-08-14

申请号：US15194394

申请日：2016-06-27

申请人： G2TOUCH Co., LTD

发明人： Sung Ho Lee

IPC分类号： G06F3/041 ,  G06F3/044

摘要： The present invention relates to a touch panel capable of detecting a capacitive touch input of a finger of a human body or a touch input tool having conduction characteristics similar to those of the finger, and more particularly, to a structure of a touch panel having a high resolution so as to detect a touch input tool having a diameter smaller than a unit pi. In a touch panel having a high resolution according to an exemplary embodiment of the present invention, it is possible to maintain high touch sensitivity while minimizing a change in structures of touch patterns depending on a size or a purpose of the touch panel.

公开(公告)号：US09952267B2

公开(公告)日：2018-04-24

申请号：US15240179

申请日：2016-08-18

申请人： G2TOUCH Co., LTD.

发明人： Sung Ho Lee

IPC分类号： G01R27/26 ,  H03K17/955

CPC分类号： G01R27/2605 ,  G01D5/24 ,  G01R27/26 ,  H03K17/955 ,  H03K2217/960725

摘要： The present invention relates to a novel means and a novel method for detecting a capacitance connected to AC power, which detect a sensor capacitance on the basis of a charge sharing phenomenon occurring due to a difference between voltages applied to a sensor capacitor and an auxiliary capacitor connected to a detection system when an AC voltage applied to the detection system alternates. According to the present invention, since the sensitivity of a signal detected by a detection system is improved, a magnitude and a change amount of a sensor capacitance are stably acquired.

公开(公告)号：US09772731B2

公开(公告)日：2017-09-26

申请号：US14801039

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.

公开(公告)号：US20170168624A1

公开(公告)日：2017-06-15

申请号：US15375025

申请日：2016-12-09

申请人： G2TOUCH Co., LTD

发明人： Sung Ho LEE

IPC分类号： G06F3/041 ,  G06F3/044

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.

公开(公告)号：US20170168612A1

公开(公告)日：2017-06-15

申请号：US15375005

申请日：2016-12-09

申请人： G2TOUCH Co., LTD

发明人： Sung Ho LEE

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0412 ,  G06F2203/04103 ,  G06F2203/04107 ,  G06F2203/04111

摘要： Disclosed herein are a display device having an embedded touch screen capable of preventing deterioration of image quality generated in the display device when a touch sensor and a sensor signal line are disposed in the display device and solving a problem that sensitivity of a detected touch signal is weakened due to a parasitic capacitance generated between the touch sensor and the sensor signal line and a driving signal line and components of the display device, and a method of manufacturing the same.

公开(公告)号：US20170045563A1

公开(公告)日：2017-02-16

申请号：US15339731

申请日：2016-10-31

申请人： G2TOUCH Co., LTD.

发明人： Sung Ho LEE

IPC分类号： G01R27/26 ,  H03K17/955

CPC分类号： G01R27/2605 ,  G01D5/24 ,  G01R27/26 ,  H03K17/955 ,  H03K2217/960725

摘要： The present invention relates to a novel means and a novel method for detecting a capacitance connected to AC power, which detect a sensor capacitance on the basis of a charge sharing phenomenon occurring due to a difference between voltages applied to a sensor capacitor and an auxiliary capacitor connected to a detection system when an AC voltage applied to the detection system alternates. According to the present invention, since the sensitivity of a signal detected by a detection system is improved, a magnitude and a change amount of a sensor capacitance are stably acquired.

摘要翻译： 本发明涉及一种用于检测连接到AC电力的电容的新颖方法和新方法，其基于由施加到传感器电容器和辅助电容器的电压之间的差异而发生的电荷共享现象来检测传感器电容 当施加到检测系统的AC电压交替时，连接到检测系统。 根据本发明，由于检测系统检测到的信号的灵敏度得到改善，因此稳定地获得传感器电容的大小和变化量。

公开(公告)号：US20170010714A1

公开(公告)日：2017-01-12

申请号：US15193881

申请日：2016-06-27

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 ,  G06F2203/04108

摘要： The present invention relates to a touch panel capable of detecting a capacitive touch input of a finger of a human body or a touch input tool having conduction characteristics similar to those of the finger, and more particularly, to a structure of a touch panel having a high resolution so as to detect a touch input tool having a diameter smaller than a unit pi. In a touch panel having a high resolution according to an exemplary embodiment of the present invention, it is possible to maintain high touch sensitivity while minimizing a change in structures of touch patterns depending on a size or a purpose of the touch panel.

摘要翻译： 本发明涉及一种能够检测人体手指的电容式触摸输入或具有类似于手指的传导特性的触摸输入工具的触摸面板，更具体地说，涉及具有 高分辨率，以便检测直径小于单位pi的触摸输入工具。 在根据本发明的示例性实施例的具有高分辨率的触摸面板中，可以保持高的触摸灵敏度，同时根据触摸面板的尺寸或目的最小化触摸图案的结构的变化。

公开(公告)号：US20240231541A1

公开(公告)日：2024-07-11

申请号：US18402724

申请日：2024-01-03

申请人： G2touch Co., Ltd.

发明人： Sung-Won CHO ,  Dong-Won YUN

IPC分类号： G06F3/041 ,  G06F3/044

CPC分类号： G06F3/04184 ,  G06F3/0412 ,  G06F3/04164 ,  G06F3/04166 ,  G06F3/0446

摘要： A touch detection device includes a panel including a plurality of electrodes regularly arranged in rows and columns, a connector configured to electrically connect some of the electrodes to form a plurality of sensing channels, and a driver configured to provide driving signals to the sensing channels, wherein the driver parts different edges of the driving signals to different sensing channels.

公开(公告)号：US11042246B2

公开(公告)日：2021-06-22

申请号：US16382107

申请日：2019-04-11

申请人： G2TOUCH Co., LTD.

发明人： Young Woo Yun ,  Tae Wook Kim ,  Hwa Joo Noh ,  Ki Hwan Oh

IPC分类号： G06F3/044

摘要： The present invention relates to a display device having a touch detection function, and relates to a touch pad which is capable of detecting a contact touch and a contactless touch, a method of detecting a touch by using the same, and a display device including the same. According to the touch pad, the method of detecting a touch by using the touch pad, and the display device including the touch pad of the present invention, it is possible to simultaneously detect a contact touch and a contactless touch, and increase touch sensitivity by additionally applying a driving back voltage.