公开(公告)号：US09927929B2

公开(公告)日：2018-03-27

申请号：US14528569

申请日：2014-10-30

申请人： LG DISPLAY CO., LTD.

发明人： Dongjo Park ,  Sojung Jung

IPC分类号： G06F3/044 ,  G06F3/041

CPC分类号： G06F3/044 ,  G06F3/0416 ,  G06F2203/04106

摘要： A touch sensing system and a method for driving the same. The touch sensing system includes a pen with a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes substantially perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit. The first touch driving circuit supplies a resonant inductive signal to the XY electrodes, analyzes a resonance signal received through the antenna, and decides a location and a pen pressure of the pen. The resonant inductive signal includes N periods each having a different duration, and wherein N is a positive integer equal to or greater than 2.

公开(公告)号：US20150084899A1

公开(公告)日：2015-03-26

申请号：US14498254

申请日：2014-09-26

申请人： LG DISPLAY CO., LTD.

发明人： Dongjo Park ,  Sojung Jung

IPC分类号： G06F3/0354 ,  G06F3/041

CPC分类号： G06F3/03545 ,  G06F3/041 ,  G06F3/044 ,  G06F3/046

摘要： A touch sensing system includes a pen including a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which transmits a resonant inductive signal to the pen through electric coupling and to receive a resonance signal from the pen through the antenna.

摘要翻译： 一种触摸感测系统，包括一个包括嵌入其中的谐振电路的笔，包括X电极和垂直于X电极的Y电极的XY电极，围绕着XY电极的天线，以及将谐振电感信号传输到笔的第一触摸驱动电路 并通过天线接收来自笔的共振信号。

公开(公告)号：US10324567B2

公开(公告)日：2019-06-18

申请号：US14067735

申请日：2013-10-30

申请人： LG DISPLAY CO., LTD.

发明人： Jiho Cho ,  Dongjo Park

IPC分类号： G06F3/044 ,  G06F3/041

摘要： A touch sensing system and a method of reducing latency thereof are disclosed. The touch sensing system includes a touch sensing circuit configured to apply a driving signal to touch sensors, sense voltages of the touch sensors, and output a digital touch raw data; a coordinate calculator configured to analyze the digital touch raw data, and calculate a coordinate information about each of positions of a touch input; and an idle mode controller configured to compare an analog signal received from the touch sensors with a predetermined threshold value, decide whether or not the touch input is generated based on the analog signal, and generate an interrupt signal when the touch input is sensed.

公开(公告)号：US09600093B2

公开(公告)日：2017-03-21

申请号：US14498254

申请日：2014-09-26

申请人： LG DISPLAY CO., LTD.

发明人： Dongjo Park ,  Sojung Jung

IPC分类号： G06F3/0354 ,  G06F3/041 ,  G06F3/044 ,  G06F3/046

CPC分类号： G06F3/03545 ,  G06F3/041 ,  G06F3/044 ,  G06F3/046

摘要： A touch sensing system includes a pen including a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which transmits a resonant inductive signal to the pen through electric coupling and to receive a resonance signal from the pen through the antenna.

公开(公告)号：US09594440B2

公开(公告)日：2017-03-14

申请号：US14496921

申请日：2014-09-25

申请人： LG DISPLAY CO., LTD.

发明人： Dongjo Park ,  Sojung Jung

IPC分类号： G06F3/046 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/041

CPC分类号： G06F3/03545 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/046

摘要： A touch sensing system includes a pen including at least one resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which supplies a resonant inductive signal to the XY electrodes, decides a location of the pen based on a resonance magnitude of a resonance signal received through the antenna, and decides a pen pressure of the pen based on a resonant frequency of the resonant circuit and an adjacent frequency of the resonant frequency measured while varying a frequency of the resonant inductive signal.

摘要翻译： 触摸感测系统包括笔，该笔包括嵌入其中的至少一个谐振电路，包括X电极和垂直于X电极的Y电极的XY电极，围绕XY电极的天线以及向谐振电感信号提供谐振电感信号的第一触摸驱动电路 XY电极基于通过天线接收的谐振信号的谐振幅度来决定笔的位置，并且基于谐振电路的谐振频率和测量的谐振频率的相邻频率来决定笔的笔压力 同时改变谐振感应信号的频率。