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1.发明授权公开(公告)号：US09430088B1
公开(公告)日：2016-08-30
申请号：US14968474
申请日：2015-12-14
Applicant: LG Display Co., Ltd.
Inventor： Dukhyo Lee , Beomjin Kim
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04103
Abstract: A touch sensor driving device comprises: a plurality of touch sensing circuits that receive touch sensor sensing signals from touch sensors of a touchscreen through a plurality of receiving channels; and a plurality of discharge circuits connected between the receiving channels and the touch sensing circuits to receive charge eliminating pulse signals and reduce the swing amplitude of the touch sensor sensing signals input into the touch sensing circuits.
Abstract translation: 触摸传感器驱动装置包括：多个触摸感测电路，其通过多个接收通道从触摸屏的触摸传感器接收触摸传感器感测信号; 以及连接在接收通道和触摸感测电路之间的多个放电电路，以接收电荷消除脉冲信号并减小输入到触摸感测电路中的触摸传感器感测信号的摆幅。
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2.发明授权Method and circuit for driving touch sensors to reduce noise measurement time and display device using the same 有权用于驱动触摸传感器以减少噪声测量时间的方法和电路以及使用其的显示装置公开(公告)号：US09569035B1
公开(公告)日：2017-02-14
申请号：US14981313
申请日：2015-12-28
Applicant: LG Display Co., Ltd.
Inventor： Dukhyo Lee , Jaehun Jun , Hyeongwon Kang , Beomjin Kim
CPC classification number: G06F3/0418 , G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: Disclosed herein are a method and circuit for driving touch sensors and a display device using the same. A method of driving touch sensors includes supplying a touch sensor driving signal to the touch sensors or an amplifier and sensing a touch input during a touch input sensing portion and measuring current noise received through the touch sensors without the touch sensor driving signal during a noise measurement portion.
Abstract translation: 这里公开了用于驱动触摸传感器的方法和电路以及使用其的显示装置。 驱动触摸传感器的方法包括将触摸传感器驱动信号提供给触摸传感器或放大器，并且在触摸输入感测部分期间感测触摸输入，并且在噪声测量期间测量通过触摸传感器接收的电流噪声而不用触摸传感器驱动信号 一部分。
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Patent Agency Ranking
公开(公告)号：US20160147368A1
公开(公告)日：2016-05-26
申请号：US14946676
申请日：2015-11-19
Applicant: LG Display Co., Ltd.
Inventor： Beomjin Kim , Dukhyo Lee
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/3696
Abstract: A touch sense circuit comprises a first sampling circuit to sample a touch sense signal during a first period of a touch drive signal in which the touch drive signal is at a first level, to generate a first sampled signal; a second sampling circuit to sample the touch sense signal during a second period of the touch drive signal in which the touch drive signal is at a second level, to generate a second sampled signal, the second sampled signal in a same polarity as the first sampled signal; and an integrator including an input terminal and an output terminal, both the first sampled signal and the second sampled signal being input to the input terminal of the integrator and integrated to generate an output signal at the output terminal of the integrator, the output signal being used to detect a touch input.
Abstract translation: 触摸感测电路包括：第一采样电路，用于在其中触摸驱动信号处于第一电平的触摸驱动信号的第一周期期间对触摸感测信号进行采样，以产生第一采样信号; 第二采样电路，用于在所述触摸驱动信号处于第二电平的所述触摸驱动信号的第二周期期间对所述触摸感测信号进行采样，以产生第二采样信号，所述第二采样信号的极性与所述第一采样 信号; 以及包括输入端子和输出端子的积分器，第一采样信号和第二采样信号都被输入到积分器的输入端，并被积分以在积分器的输出端产生输出信号，输出信号为 用于检测触摸输入。
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公开(公告)号：US10198124B2
公开(公告)日：2019-02-05
申请号：US15393166
申请日：2016-12-28
Applicant: LG Display Co., Ltd.
Inventor： Dukhyo Lee , Jaehun Jun , Hyeongwon Kang , Beomjin Kim
Abstract: Disclosed herein are a method and circuit for driving touch sensors and a display device using the same. A method of driving touch sensors includes supplying a touch sensor driving signal to the touch sensors or an amplifier and sensing a touch input during a touch input sensing portion and measuring current noise received through the touch sensors without the touch sensor driving signal during a noise measurement portion.
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公开(公告)号：US09904404B2
公开(公告)日：2018-02-27
申请号：US14875502
申请日：2015-10-05
Applicant: LG Display Co., Ltd.
Inventor： Hyeongwon Kang , Jaehun Jun , Dukhyo Lee , Beomjin Kim
CPC classification number: G06F3/0416 , G06F1/3262 , G06F1/3265 , G06F3/0412 , G06F3/044 , G06F2203/04112 , Y02D10/153
Abstract: A display device that comprises a plurality of touch electrodes and a touchscreen driving circuit coupled to the plurality of touch electrodes. In a normal display mode of the display device, the touchscreen driving circuit senses touch via the plurality of touch electrodes using self capacitance touch sensing. In a sleep mode of the display device, the touchscreen driving circuit senses touch via the plurality of touch electrodes using mutual capacitance touch sensing.
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6.发明授权公开(公告)号：US09927930B2
公开(公告)日：2018-03-27
申请号：US14585515
申请日：2014-12-30
Applicant: LG Display Co., Ltd.
Inventor： Dukhyo Lee , Beomjin Kim
IPC: G06F3/044 , G06F3/041 , G02F1/1333
CPC classification number: G06F3/044 , G02F1/13338 , G06F3/0412 , G06F3/0416
Abstract: A touch sensing device includes a panel including pixels disposed in a matrix form defined by data lines and gate lines, the pixels including thin film transistors (TFTs). The touch sensing device includes at least one touch sensor having a mutual capacitance and a sensor driving circuit configured to receive an electric charge from the mutual capacitance. The touch sensing device further includes a display driving circuit configured to supply a first parasitic capacitance suppressing signal to the data lines and a second parasitic capacitance suppressing signal to the gate lines during a touch sensor driving period.
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公开(公告)号：US09524054B2
公开(公告)日：2016-12-20
申请号：US14946676
申请日：2015-11-19
Applicant: LG Display Co., Ltd.
Inventor： Beomjin Kim , Dukhyo Lee
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/3696
Abstract: A touch sense circuit comprises a first sampling circuit to sample a touch sense signal during a first period of a touch drive signal in which the touch drive signal is at a first level, to generate a first sampled signal; a second sampling circuit to sample the touch sense signal during a second period of the touch drive signal in which the touch drive signal is at a second level, to generate a second sampled signal, the second sampled signal in a same polarity as the first sampled signal; and an integrator including an input terminal and an output terminal, both the first sampled signal and the second sampled signal being input to the input terminal of the integrator and integrated to generate an output signal at the output terminal of the integrator, the output signal being used to detect a touch input.
Abstract translation: 触摸感测电路包括：第一采样电路，用于在其中触摸驱动信号处于第一电平的触摸驱动信号的第一周期期间对触摸感测信号进行采样，以产生第一采样信号; 第二采样电路，用于在所述触摸驱动信号处于第二电平的所述触摸驱动信号的第二周期期间对所述触摸感测信号进行采样，以产生第二采样信号，所述第二采样信号具有与所述第一采样相同的极性 信号; 以及包括输入端子和输出端子的积分器，第一采样信号和第二采样信号都被输入到积分器的输入端，并被积分以在积分器的输出端产生输出信号，输出信号为 用于检测触摸输入。
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