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：US20160253005A1

公开(公告)日：2016-09-01

申请号：US15148217

申请日：2016-05-06

Applicant: LG Display Co., Ltd.

Inventor： Hyeongwon KANG ,  Beomjin KIM

IPC: G06F3/044 ,  G06F1/12 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F1/12 ,  G06F3/0416

Abstract: A touch screen driver includes a touch screen including Tx channels, Rx channels crossing the Tx channels, and sensor nodes formed at crossings of the Tx channels and the Rx channels, a Tx driving circuit supplying a driving pulse to the Tx channels, an Rx driving circuit which samples voltages of the sensor nodes supplied through the Rx channels in response to Rx sampling clocks and converts the sampled voltages into digital data, and a touch controller which modulates the Rx sampling clocks based on an RC delay deviation between the Rx channels, supplies the modulated Rx sampling clocks to the Rx driving circuit, differently controls sampling times of the Rx channels, and analyzes the digital data using a previously determined touch recognition algorithm.

Abstract translation: 触摸屏驱动器包括触摸屏，包括Tx通道，穿过Tx通道的Rx通道，以及在Tx通道和Rx通道的交叉处形成的传感器节点，向Tx通道提供驱动脉冲的Tx驱动电路，Rx驱动 电路，其响应于Rx采样时钟采样通过Rx通道提供的传感器节点的电压，并将采样的电压转换成数字数据;以及触摸控制器，其基于Rx通道之间的RC延迟偏差来调制Rx采样时钟 对Rx驱动电路的调制Rx采样时钟不同地控制Rx通道的采样时间，并且使用先前确定的触摸识别算法分析数字数据。

公开(公告)号：US20160092029A1

公开(公告)日：2016-03-31

申请号：US14866615

申请日：2015-09-25

Applicant: LG Display Co., Ltd.

Inventor： Beomjin KIM ,  Sunghoon ON

IPC: G06F3/041 ,  G05F1/46 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G05F1/463 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111

Abstract: A touch sensing system includes a charge distributor, a pre-amplifier, an analog-to-digital converter (ADC), and a temperature compensating device. The temperature compensating device varies one or more of a first reference voltage supplied to the charge distributor, a second reference voltage supplied to the pre-amplifier, and the capacitance of the charge distributor, in response to temperature data from a temperature sensor.

Abstract translation: 触摸感测系统包括电荷分配器，前置放大器，模数转换器（ADC）和温度补偿装置。 温度补偿装置响应于来自温度传感器的温度数据改变提供给电荷分配器的第一参考电压，提供给前置放大器的第二参考电压和电荷分配器的电容中的一个或多个。

公开(公告)号：US20190021151A1

公开(公告)日：2019-01-17

申请号：US16002197

申请日：2018-06-07

Applicant: LG Display Co., Ltd.

Inventor： Gyungmin KIM ,  Beomjin KIM

IPC: H05B33/10 ,  H01L51/56

Abstract: An electroluminescence display and a method for driving the same are provided to enhance the aging performance of the electroluminescence display. The electroluminescence display comprises: a display panel on which a plurality of pixels each comprising an electroluminescence element; and a power supply part that outputs a drive voltage for driving the pixels, wherein an externally applied aging signal is applied to a cathode of the electroluminescence element to perform aging on the display panel.

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。

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.