公开(公告)号：US20170060337A1

公开(公告)日：2017-03-02

申请号：US14984740

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Sungchul KIM ,  Hyunguk JANG ,  Sanghyuck BAE ,  Sungsu HAN ,  Suyun JU ,  Doyoung JUNG ,  Kyungjin JANG ,  Yoonion HWANG

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/044

Abstract: A touch sensitive display device, a method for driving the same, and a driving circuit of the display device are disclosed. The touch sensitive display device comprises a display panel comprising a plurality of pixels and a plurality of touch sensors. Each touch sensor is connected to at least one respective pixel of the pixels, the display panel driven in a plurality of successive display frame periods and during each display frame period a respective frame of image data is driven to the pixels. A touch driving circuit drives touch driving signals to the touch sensors during a touch frame that begins in a first display frame period of the display frame periods and ends in a second display frame period of the display frame periods that immediately follows the first display frame period.

Abstract translation: 公开了一种触敏显示装置，其驱动方法和显示装置的驱动电路。 触敏显示装置包括包括多个像素和多个触摸传感器的显示面板。 每个触摸传感器连接到像素的至少一个相应像素，显示面板以多个连续的显示帧周期驱动，并且在每个显示帧周期期间，图像数据的相应帧被驱动到像素。 触摸驱动电路在从显示帧周期的第一显示帧周期开始的触摸帧期间将触摸驱动信号驱动到触摸传感器，并且在紧接着第一显示帧周期的显示帧周期的第二显示帧周期结束 。

公开(公告)号：US20170060278A1

公开(公告)日：2017-03-02

申请号：US15249113

申请日：2016-08-26

Applicant: LG Display Co., Ltd.

Inventor： Doyoung JUNG ,  Hyunguk JANG ,  Sungchul KIM ,  Sanghyuck BAE ,  Sungsu HAN ,  Suyun JU

IPC: G06F3/0354 ,  G06F3/0487 ,  G06F3/041

CPC classification number: G06F3/03545 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: An active stylus pen generates a pen driving signal synchronized with a touchscreen driving signal received from a touchscreen and outputs the pen driving signal to the touchscreen. The active stylus pen includes a pressure sensing unit for sensing pressure when touching the touchscreen to generate writing pressure information and a signal processor for modulating the pen driving signal in response to the signal level of the writing pressure information and outputs the modulated signal as a pen driving signal in which the writing pressure information has been reflected.

Abstract translation: 有源触控笔产生与从触摸屏接收的触摸屏驱动信号同步的笔驱动信号，并将笔驱动信号输出到触摸屏。 有源触笔包括用于在触摸触摸屏时感测压力以产生书写压力信息的压力感测单元和用于响应于写入压力信息的信号电平来调制笔驱动信号的信号处理器，并输出调制信号作为笔 写入压力信息已被反映的驱动信号。

公开(公告)号：US20160162110A1

公开(公告)日：2016-06-09

申请号：US15041000

申请日：2016-02-10

Applicant: LG Display Co., Ltd.

Inventor： Sungchul KIM ,  Junghan LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111

Abstract: A touch sensing device includes a touch screen coupled with a display panel including data lines, gate lines crossing the data lines, and pixels arranged in a matrix form, and a touch sensing circuit which supplies a driving signal to lines of the touch screen and senses a touch input. The touch sensing circuit detects an optimum sensing time, in which changes in a voltage change of the gate lines are maintained within a previously determined allowable range, in a touch screen drive period in which data is not written to the pixels of the display panel. The touch sensing circuit supplies the driving signal to the lines of the touch screen only in the optimum sensing time of the touch screen drive period.

Abstract translation: 触摸感测装置包括与显示面板耦合的触摸屏，该显示面板包括数据线，与数据线交叉的栅极线和以矩阵形式布置的像素;以及触摸感测电路，其将驱动信号提供给触摸屏的线并感测 触摸输入。 触摸感测电路在没有向显示面板的像素写入数据的触摸屏驱动周期中，检测出最佳感测时间，其中栅极线的电压变化的变化保持在预先确定的容许范围内。 触摸感测电路仅在触摸屏驱动周期的最佳感测时间内将驱动信号提供给触摸屏的线。

公开(公告)号：US20180239480A1

公开(公告)日：2018-08-23

申请号：US15961330

申请日：2018-04-24

Applicant: LG Display Co., Ltd.

Inventor： Sungchul KIM ,  Junghan LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111

Abstract: A touch sensing device includes a touch screen coupled with a display panel including data lines, gate lines crossing the data lines, and pixels arranged in a matrix form, and a touch sensing circuit which supplies a driving signal to lines of the touch screen and senses a touch input. The touch sensing circuit detects an optimum sensing time, in which changes in a voltage change of the gate lines are maintained within a previously determined allowable range, in a touch screen drive period in which data is not written to the pixels of the display panel. The touch sensing circuit supplies the driving signal to the lines of the touch screen only in the optimum sensing time of the touch screen drive period.

公开(公告)号：US20170108985A1

公开(公告)日：2017-04-20

申请号：US15394122

申请日：2016-12-29

Applicant: LG Display Co., Ltd.

Inventor： Sungchul KIM

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2354/00

Abstract: A display device includes a display panel including data lines, gate lines crossing the data lines, and pixels arranged in a matrix form, a touch screen which is embedded in the display panel or is installed on the display panel, a data driving circuit supplying a data voltage to the data lines, a gate driving circuit supplying a gate pulse to the gate lines, and a touch sensing circuit which supplies a driving signal to lines of the touch screen and senses a touch input. The gate driving circuit alternately drives pull-down transistors connected in parallel to one gate line. The gate driving circuit drives one of the pull-down transistors or simultaneously drives the pull-down transistors during a drive period of the touch screen.

公开(公告)号：US20160266684A1

公开(公告)日：2016-09-15

申请号：US15158451

申请日：2016-05-18

Applicant: LG Display Co., Ltd.

Inventor： Junghan LEE ,  Sungchul KIM

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04101 ,  G09G3/36 ,  G09G3/3674 ,  G09G3/3677 ,  G09G3/3685 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/0272 ,  G09G2310/0278

Abstract: A display device with an integrated touch screen including a display panel including electrodes divided into a plurality of block type groups and a plurality of data lines; a display driver IC configured to apply a common voltage to the electrodes when a driving mode of the panel is a display driving mode, sequentially apply a touch scan signal to each block type group when the driving mode of the panel is a touch driving mode, and apply a data signal to the data lines associated with a corresponding block type group when the touch scan signal is applied to the corresponding block type group; and a touch IC configured to generate the touch scan signal and apply the touch scan signal to the display driver IC.

公开(公告)号：US20130314342A1

公开(公告)日：2013-11-28

申请号：US13712753

申请日：2012-12-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungchul KIM ,  Junghan LEE

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111

Abstract: A touch sensing device includes a touch screen coupled with a display panel including data lines, gate lines crossing the data lines, and pixels arranged in a matrix form, and a touch sensing circuit which supplies a driving signal to lines of the touch screen and senses a touch input. The touch sensing circuit detects an optimum sensing time, in which changes in a voltage change of the gate lines are maintained within a previously determined allowable range, in a touch screen drive period in which data is not written to the pixels of the display panel. The touch sensing circuit supplies the driving signal to the lines of the touch screen only in the optimum sensing time of the touch screen drive period.

Abstract translation: 触摸感测装置包括与显示面板耦合的触摸屏，该显示面板包括数据线，与数据线交叉的栅极线和以矩阵形式布置的像素;以及触摸感测电路，其将驱动信号提供给触摸屏的线并感测 触摸输入。 触摸感测电路在没有向显示面板的像素写入数据的触摸屏驱动周期中，检测出最佳感测时间，其中栅极线的电压变化的变化保持在预先确定的容许范围内。 触摸感测电路仅在触摸屏驱动周期的最佳感测时间内将驱动信号提供给触摸屏的线。

公开(公告)号：US20130307817A1

公开(公告)日：2013-11-21

申请号：US13719891

申请日：2012-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungchul KIM

IPC: G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2354/00

Abstract: A display device includes a display panel including data lines, gate lines crossing the data lines, and pixels arranged in a matrix form, a touch screen which is embedded in the display panel or is installed on the display panel, a data driving circuit supplying a data voltage to the data lines, a gate driving circuit supplying a gate pulse to the gate lines, and a touch sensing circuit which supplies a driving signal to lines of the touch screen and senses a touch input. The gate driving circuit alternately drives pull-down transistors connected in parallel to one gate line. The gate driving circuit drives one of the pull-down transistors or simultaneously drives the pull-down transistors during a drive period of the touch screen.

Abstract translation: 显示装置包括显示面板，包括数据线，与数据线交叉的栅极线和矩阵形状的像素，嵌入在显示面板中或安装在显示面板上的触摸屏，数据驱动电路， 数据线的数据电压，向栅极线提供栅极脉冲的栅极驱动电路，以及向触摸屏的线路提供驱动信号并感测触摸输入的触摸感测电路。 栅极驱动电路交替驱动与一个栅极线并联连接的下拉晶体管。 栅极驱动电路在触摸屏的驱动周期期间驱动下拉晶体管之一或同时驱动下拉晶体管。