公开(公告)号：US09329725B2

公开(公告)日：2016-05-03

申请号：US14742414

申请日：2015-06-17

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: A display device comprises a timing controller and a touch sensing unit. The timing controller 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 differentially applies DTX (display touch crosstalk) compensation values by compensation area to sense the user' s touch in the touch mode, each of touch sensing block being a sensing unit for a user' s touch. Each compensation area is set based on a distance between a data driver and the compensation area. Each DTX compensation value is a value for compensating for an error of touch data caused by changes in respective grayscale values applied to pixels corresponding to a specific touch sensing block. The touch sensing blocks are divided in a column direction depending on arrangement of multiplexers in the data driver.

Abstract translation: 显示装置包括定时控制器和触摸感测单元。 定时控制器驱动显示面板，从而交替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。 触摸感测单元通过补偿区差分地应用DTX（显示触摸串扰）补偿值，以在触摸模式下感测用户的触摸，每个触摸感测块是用于用户触摸的感测单元。 基于数据驱动器和补偿区域之间的距离来设置每个补偿区域。 每个DTX补偿值是用于补偿由应用于与特定触摸感测块相对应的像素的各个灰度值的变化引起的触摸数据的误差的值。 根据数据驱动器中的多路复用器的布置，触摸感测块在列方向上被划分。

公开(公告)号：US09189097B2

公开(公告)日：2015-11-17

申请号：US14045619

申请日：2013-10-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung Chul Kim ,  Seong Mo Seo

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/0416

Abstract: Discussed is a display device with integrated touch screen including a panel including a plurality of electrodes; a data driver for converting RGB data inputted from a timing controller into a data voltage, and supplying the data voltage to data lines; a gate driver for sequentially supplying a gate signal to gate lines so as to apply the data voltage to pixels of the panel during a high logic period of a horizontal sync signal; and a touch IC for supplying the touch scan signal to the plurality of electrodes every low logic period of the horizontal sync signal, wherein the touch IC applies the touch scan signal, at least once, to each of the electrodes during one frame.

Abstract translation: 讨论了具有集成触摸屏的显示装置，其包括包括多个电极的面板; 用于将从定时控制器输入的RGB数据转换成数据电压并将数据电压提供给数据线的数据驱动器; 栅极驱动器，用于在栅极线上顺序提供栅极信号，以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像素; 以及触摸IC，用于在每个水平同步信号的每个低逻辑周期向多个电极提供触摸扫描信号，其中触摸IC至少在一帧期间向每个电极施加触摸扫描信号至少一次。

公开(公告)号：US20150286339A1

公开(公告)日：2015-10-08

申请号：US14742414

申请日：2015-06-17

Applicant: LG Display Co., Ltd.

Inventor： Seung Eun Pyo ,  Sung Chul Kim

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

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：US09075259B2

公开(公告)日：2015-07-07

申请号：US13873420

申请日：2013-04-30

Applicant: LG Display Co., Ltd.

Inventor： Sung Chul Kim

IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  G09G3/36

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：US20140062907A1

公开(公告)日：2014-03-06

申请号：US13710685

申请日：2012-12-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung Chul Kim

IPC: G06F3/038

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。