公开(公告)号：US09886129B2

公开(公告)日：2018-02-06

申请号：US14698368

申请日：2015-04-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung Chul Kim ,  Hoon Bae Kim

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: Discussed are a display device and a method of driving the same. The display device can include a panel where a plurality of touch groups including a plurality of self-capacitance electrodes are arranged along with a plurality of gate lines, a touch sensing unit configured to analyze a plurality of touch sensing signals sequentially received from the plurality of touch groups to determine a touch event on the panel, during a plurality of touch sensing periods included in one frame period, a data driver configured to respectively supply data voltages to a plurality of data lines which are provided in the panel in a direction perpendicular to the plurality of touch groups, a gate driver configured to sequentially supply a scan pulse to the plurality of gate lines, and a timing controller configured to supply image data to the data driver.

公开(公告)号：US09588618B2

公开(公告)日：2017-03-07

申请号：US14045048

申请日：2013-10-03

Applicant: LG Display Co., Ltd.

Inventor： Jung Han Lee ,  Sung Chul Kim

IPC: G06F3/041

CPC classification number: G06F3/0418

Abstract: Provided are a display device and a touch sensing method of a display device. The display device includes a timing controller temporally dividing one frame period and driving a display panel such that a display mode for displaying an image in the display panel and a touch mode for sensing a user's touch are alternately driven, and a touch sensing unit detecting the user's touch with a touch raw data difference between adjacent touch sensing blocks in the touch mode. In the display mode, the touch sensing unit generates a display compensation value for compensating for an error of the touch raw data due to a differential of display data applied to the adjacent touch sensing blocks to detect the user's touch.

Abstract translation: 提供了一种显示装置和显示装置的触摸感测方法。 显示装置包括定时控制器，其在时间上分割一帧周期并驱动显示面板，使得用于显示在显示面板中的图像的显示模式和用于感测用户触摸的触摸模式被交替地驱动，并且触摸感测单元检测 用户触摸触摸模式中相邻触摸感测块之间的触摸原始数据差异。 在显示模式中，触摸感测单元产生用于补偿由于施加到相邻触摸感测块的显示数据的差异而导致的触摸原始数据的误差的显示补偿值，以检测用户的触摸。

公开(公告)号：US09542030B2

公开(公告)日：2017-01-10

申请号：US14046413

申请日：2013-10-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung Chul Kim ,  Jeong Seop Lee ,  Seung Eun Pyo

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0416

Abstract: Disclosed is a display device with integrated touch screen that may include a panel including a plurality of electrodes; a touch IC that applies a touch scan signal to the plurality of electrodes during a predetermined period of an n−1th frame (‘n’ is an integer above 2), and checking whether or not there is a touch input in the panel through the use of information received from the plurality of electrodes; and a display driver IC that applies a common voltage to the plurality of electrodes during a first period of an nth frame if there is the touch input in the panel, and applying the common voltage to the plurality of electrodes during a second period of the nth frame if there is no touch input in the panel, wherein the second period is longer than the first period.

Abstract translation: 公开了具有集成触摸屏的显示装置，其可以包括包括多个电极的面板; 触摸IC，其在第n-1帧的预定时段（'n'是2以上的整数）中向多个电极施加触摸扫描信号，并且通过所述触摸IC来检查所述面板中是否存在触摸输入 使用从所述多个电极接收的信息; 以及显示驱动器IC，其在第n帧的第一周期期间向所述多个电极施加公共电压，如果在所述面板中存在触摸输入，并且在所述第n个第二周期期间将所述公共电压施加到所述多个电极 如果面板中没有触摸输入，其中第二周期比第一周期长。

公开(公告)号：US09377882B2

公开(公告)日：2016-06-28

申请号：US13710685

申请日：2012-12-11

Applicant: LG Display Co., Ltd.

Inventor： Sung Chul Kim

IPC: G06F3/038 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/134336 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/121 ,  G06F3/038 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0809 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A display device with an integrated touch screen and a method of driving the same are provided. In a method of driving a display device including an integrated touch screen, including a panel including a plurality of electrodes that are divided into n number of groups, where n is an integer greater than or equal to two, and a touch sensing unit, the method includes: applying data voltages to a plurality of pixels of the panel, during a high logic period of a horizontal sync signal, and applying, by the touch sensing unit, a touch scan signal to one of the n groups every n or more low logic periods of the horizontal sync signal, the touch scan signal being applied to each of the n groups at least one time, during one frame.

Abstract translation: 提供具有集成触摸屏的显示装置及其驱动方法。 在驱动包括集成触摸屏的显示装置的方法中，包括包括被分成n个组的多个电极的面板，其中n是大于或等于2的整数，以及触摸感测单元， 方法包括：在水平同步信号的高逻辑周期期间将数据电压施加到面板的多个像素，并且通过触摸感测单元将每个n个或更多个低的触摸扫描信号施加到n个组中的一个 水平同步信号的逻辑周期，触摸扫描信号在一帧期间至少一次施加到n个组中的每一个。

公开(公告)号：US09275611B2

公开(公告)日：2016-03-01

申请号：US14139279

申请日：2013-12-23

Applicant: LG Display Co., Ltd.

Inventor： Sung Chul Kim

IPC: G06F3/041 ,  G09G5/18 ,  G06F3/044

CPC classification number: G09G5/18 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044

Abstract: Disclosed is a display device capable of improving touch sensitivity by removing noise from a user's touch signal through compensation of display touch crosstalk, and a touch sensing method thereof, wherein the display device may include a timing controller for driving one frame by a time division method to alternately perform a displaying driving mode and a touch sensing mode; and a touch sensor for determining a DTX compensation block including at least one touch sensing block corresponding to a unit for sensing a user's touch; calculating a compensation representative value and a sensing block average value; and sensing a user's touch by compensating for touch data in accordance with a difference between the compensation representative value and the sensing block average value.

Abstract translation: 公开了一种显示装置，其能够通过补偿显示触摸串扰来消除用户的触摸信号中的噪声来提高触摸灵敏度，以及其触摸感测方法，其中显示装置可以包括通过时分方法驱动一帧的定时控制器 交替地执行显示驱动模式和触摸感测模式; 以及触摸传感器，用于确定包括与用于感测用户触摸的单元相对应的至少一个触摸感测块的DTX补偿块; 计算补偿代表值和感测块平均值; 以及根据补偿代表值和感测块平均值之间的差来补偿触摸数据来感测用户的触摸。

公开(公告)号：US20140160062A1

公开(公告)日：2014-06-12

申请号：US13873420

申请日：2013-04-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung Chul Kim

IPC: G02F1/1333 ,  G09G3/36 ,  G06F3/044

CPC classification number: G02F1/13338 ,  G02F2201/121 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/36

Abstract: Disclosed is a display device. The display device includes a timing controller and a touch sensing unit. The timing controller temporally divides one frame period and drives a display panel such that a display mode for displaying an image in the display panel and a touch mode for sensing a user's touch are alternately driven. The touch sensing unit detects the user's touch with a DTX compensation value calculated by multiplying a DTX weight value and a maximum DTX amplitude of a touch sensing block which is obtained when a maximum grayscale value is applied to a plurality of pixels corresponding to the touch sensing block, in the touch mode. The DTX weight value is calculated by substituting an average value of grayscale values applied to the plurality of pixels corresponding to the touch sensing block into a normalization curve.

Abstract translation: 公开了一种显示装置。 显示装置包括定时控制器和触摸感测单元。 定时控制器在时间上划分一个帧周期并驱动显示面板，从而交替地驱动用于在显示面板中显示图像的显示模式和用于感测用户触摸的触摸模式。 触摸感测单元利用通过将DTX权重值和最大灰度值应用于对应于触摸感测的多个像素获得的触摸感测块的最大DTX幅度相乘而计算的DTX补偿值来检测用户的触摸 阻止，在触摸模式。 通过将应用于与触摸感测块对应的多个像素的灰度值的平均值代入归一化曲线来计算DTX权重值。

公开(公告)号：US09817510B2

公开(公告)日：2017-11-14

申请号：US15163632

申请日：2016-05-24

Applicant: LG Display Co., Ltd.

Inventor： Sung Chul Kim

IPC: G06F3/041 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1368 ,  G06F3/038 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1362

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/134336 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/121 ,  G06F3/038 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0809 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A display device with an integrated touch screen and a method of driving the same are provided. In a method of driving a display device including an integrated touch screen, including a panel including a plurality of electrodes that are divided into n number of groups, where n is an integer greater than or equal to two, and a touch sensing unit, the method includes: applying data voltages to a plurality of pixels of the panel, during a high logic period of a horizontal sync signal, and applying, by the touch sensing unit, a touch scan signal to one of the n groups every n or more low logic periods of the horizontal sync signal, the touch scan signal being applied to each of the n groups at least one time, during one frame.

公开(公告)号：US20150378508A1

公开(公告)日：2015-12-31

申请号：US14850651

申请日：2015-09-10

Applicant: LG Display Co., Ltd.

Inventor： Sung Chul Kim ,  Sung Yub Lee ,  Seung Eun Pyo

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  G09G3/3614 ,  G09G3/3655 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/0218 ,  G09G2310/0248

Abstract: A touch screen display device is discussed. The device uses common electrodes, which are formed for display images, as touch electrodes. In a display interval, the common electrodes receive a common voltage and allow images to be displayed. In a touch sensing interval corresponding to a non-display interval of a single frame of plural frames, the common electrodes are driven as the touch electrodes and allow a touch position to be sensed. When the touch sensing interval is terminated, the data voltages which had been applied to the data lines before the touch sensing interval are re-applied to the data lines. As such, when a succeeding display interval starts after the touch sensing interval, the reduction of charging voltage in a pixel can be prevented or reduced. Therefore, a picture fault or an image fault can be prevented.

Abstract translation: 讨论了触摸屏显示装置。 该器件使用形成为显示图像的公共电极作为触摸电极。 在显示间隔中，公共电极接收公共电压并允许显示图像。 在对应于多个帧的单帧的非显示间隔的触摸感测间隔中，公共电极作为触摸电极被驱动并且允许感测触摸位置。 当触摸感测间隔结束时，将已经施加到触摸感测间隔之前的数据线的数据电压重新应用于数据线。 因此，当在触摸感测间隔之后开始后续的显示间隔时，可以防止或减少像素中的充电电压的降低。 因此，可以防止图像故障或图像故障。

公开(公告)号：US09086771B2

公开(公告)日：2015-07-21

申请号：US13872254

申请日：2013-04-29

Applicant: LG Display Co., Ltd.

Inventor： Seung Eun Pyo ,  Sung Chul Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3666 ,  G09G2310/08

Abstract: Disclosed is a display device. The display device includes a timing controller temporally dividing one frame period and driving a display panel such that a display mode for displaying an image in the display panel and a touch mode for sensing a user's touch are alternately driven, and a touch sensing unit setting a plurality of compensation areas including at least one or more touch sensing blocks, and differentially applying DTX compensation values by compensation area to sense the user's touch in the touch mode. Each of the touch sensing blocks is a sensing unit for a user's touch.

Abstract translation: 公开了一种显示装置。 该显示装置包括一个定时控制器，其在时间上分割一帧周期并驱动显示面板，使得用于显示在显示面板中的图像的显示模式和用于感测用户触摸的触摸模式被交替驱动，并且触摸感测单元设置 多个补偿区域，包括至少一个或多个触摸感测块，以及通过补偿区域差异地应用DTX补偿值，以感测用户在触摸模式下的触摸。 每个触摸感测块是用于用户触摸的感测单元。

公开(公告)号：US20140210771A1

公开(公告)日：2014-07-31

申请号：US14047122

申请日：2013-10-07

Applicant: LG Display Co., Ltd.

Inventor： Sung Chul Kim ,  Seung Eun Pyo

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G2310/061 ,  G09G2354/00

Abstract: Disclosed are a display device integrated with a touch screen and a method of driving the same, the display device comprising: a touch panel comprising a touch electrode which is disposed in each of a plurality of pixels defined by intersections between a plurality of gate lines and a plurality of data lines; a display driver supplying data voltages for displaying an image to the respective pixels during a display period, and supplying an initialization data voltage for initializing a capacitance of the touch electrode to each pixel during a touch sensing period; and a touch driver sensing the capacitance of the touch electrode to detect a touched position during the touch sensing period. The display device integrated with the touch screen and the method of driving the same according to the present invention initialize capacitances of the touch electrodes to the same value irrespective of image data of the pixels being changed from black to white during the display period, thus preventing the occurrence of a touch error due to a screen change.

Abstract translation: 公开了一种与触摸屏集成的显示装置及其驱动方法，所述显示装置包括：触摸面板，其包括触摸电极，所述触摸电极设置在由多条栅极线与所述多条栅极线之间的交点限定的多个像素中的每一个中; 多条数据线; 显示驱动器，在显示周期期间向各像素提供用于显示图像的数据电压，并且在触摸感测期间提供用于将触摸电极的电容初始化为每个像素的初始化数据电压; 以及感测触摸电极的电容以在触摸感测时段期间检测触摸位置的触摸驱动器。 与根据本发明的触摸屏集成的显示装置及其驱动方法将触摸电极的电容初始化为相同的值，而不管像素的图像数据在显示周期期间从黑色变为白色，因此防止 由于屏幕变化而发生触摸错误。