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公开(公告)号：US09569034B2
公开(公告)日：2017-02-14
申请号：US14953887
申请日：2015-11-30
Applicant: LG Display Co., Ltd.
Inventor： Sungchul Kim
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。
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公开(公告)号：US09292117B2
公开(公告)日：2016-03-22
申请号：US13712753
申请日：2012-12-12
Applicant: LG DISPLAY CO., LTD.
Inventor： Sungchul Kim , Junghan Lee
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。
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公开(公告)号：US09229590B2
公开(公告)日：2016-01-05
申请号：US13719891
申请日：2012-12-19
Applicant: LG DISPLAY CO., LTD.
Inventor： Sungchul Kim
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。
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公开(公告)号：US10908743B2
公开(公告)日：2021-02-02
申请号：US15158451
申请日：2016-05-18
Applicant: LG Display Co., Ltd.
Inventor： Junghan Lee , Sungchul Kim
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.
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公开(公告)号：US10416817B2
公开(公告)日：2019-09-17
申请号：US15093672
申请日：2016-04-07
Applicant: LG Display Co., Ltd.
Inventor： Junghan Lee , Sungchul Kim
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.
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Patent Agency Ranking
公开(公告)号：US09977527B2
公开(公告)日：2018-05-22
申请号：US15684890
申请日：2017-08-23
Applicant: LG Display Co., Ltd.
Inventor： Sungchul Kim , Junghan Lee
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.
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公开(公告)号：US09958975B2
公开(公告)日：2018-05-01
申请号：US15400940
申请日：2017-01-06
Applicant: LG Display Co., Ltd.
Inventor： Sungchul Kim , Junghan Lee
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.
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公开(公告)号：US09563310B2
公开(公告)日：2017-02-07
申请号：US15041000
申请日：2016-02-10
Applicant: LG Display Co., Ltd.
Inventor： Sungchul Kim , Junghan Lee
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。
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公开(公告)号：US20160085378A1
公开(公告)日：2016-03-24
申请号：US14954859
申请日：2015-11-30
Applicant: LG Display Co., Ltd.
Inventor： Junghan Lee , Sungchul Kim
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.
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公开(公告)号：US09058072B2
公开(公告)日：2015-06-16
申请号：US13687738
申请日：2012-11-28
Applicant: LG DISPLAY CO., LTD.
Inventor： Sanghyuck Bae , Sungchul Kim
CPC classification number: G06F3/041 , G06F3/0412 , G06F3/0416 , G06F3/044 , G09G3/36 , G09G2320/0223
Abstract: A touch sensing apparatus according to an embodiment of the present invention includes: a display device including a plurality of pixels and displaying an image; a touch screen including a plurality of touch sensors and being included in the display device; display panel driving circuits for driving the display device; a touch sensing circuit for applying a driving signal to the touch sensors to sense a voltage or capacitance variation in the touch sensors; a controller for time-dividing a first frame period into a first driving period for displaying an image on the display device and a second driving period for sensing the touch sensors; and a reset control circuit for controlling operations of the display panel driving circuits with a reset enable signal to initialize the pixels of the display device to an equivalent reset voltage at predetermined intervals between the first driving period and the second driving period.
Abstract translation: 根据本发明的实施例的触摸感测装置包括：显示装置，包括多个像素并显示图像; 包括多个触摸传感器并包括在所述显示装置中的触摸屏; 用于驱动显示装置的显示面板驱动电路; 触摸感测电路，用于向触摸传感器施加驱动信号以感测触摸传感器中的电压或电容变化; 控制器，用于将第一帧周期时分为用于在所述显示装置上显示图像的第一驱动周期和用于感测所述触摸传感器的第二驱动周期; 以及复位控制电路，用于通过复位使能信号控制显示面板驱动电路的操作，以在第一驱动周期和第二驱动周期之间以预定间隔将显示装置的像素初始化为等效复位电压。
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