公开(公告)号：US20170108993A1

公开(公告)日：2017-04-20

申请号：US15393166

申请日：2016-12-28

Applicant: LG Display Co., Ltd.

Inventor： Dukhyo LEE ,  Jaehun JUN ,  Hyeongwon KANG ,  Beomjin KIM

IPC: G06F3/041 ,  G06F3/044

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.

公开(公告)号：US20160098141A1

公开(公告)日：2016-04-07

申请号：US14875502

申请日：2015-10-05

Applicant: LG Display Co., Ltd.

Inventor： Hyeongwon KANG ,  Jaehun JUN ,  Dukhyo LEE ,  Beomjin KIM

IPC: G06F3/041 ,  G06F3/044

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.

Abstract translation: 一种显示装置，包括耦合到所述多个触摸电极的多个触摸电极和触摸屏驱动电路。 在显示装置的正常显示模式中，触摸屏驱动电路使用自身电容触摸感测通过多个触摸电极来感测触摸。 在显示装置的睡眠模式中，触摸屏驱动电路使用互电容触摸感测来感测经由多个触摸电极的触摸。

公开(公告)号：US20160092027A1

公开(公告)日：2016-03-31

申请号：US14585515

申请日：2014-12-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Dukhyo LEE ,  Beomjin KIM

IPC: G06F3/041 ,  G06F3/044

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.

Abstract translation: 触摸感测装置包括面板，包括由数据线和栅极线限定的矩阵形状的像素，像素包括薄膜晶体管（TFT）。 触摸感测装置包括具有互电容的至少一个触摸传感器和被配置为从互电容接收电荷的传感器驱动电路。 所述触摸感测装置还包括：显示驱动电路，被配置为在触摸传感器驱动期间向所述栅极线提供第一寄生电容抑制信号至所述数据线;以及第二寄生电容抑制信号。