公开(公告)号：US10303275B2

公开(公告)日：2019-05-28

申请号：US14480866

申请日：2014-09-09

Applicant: LG Display Co., Ltd.

Inventor： Dae-Seok Oh ,  Ju-Young Lee ,  Bo-Gun Seo ,  Hak-Su Kim ,  Yong-Hwa Park

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch display device includes a touch display panel for displaying an image corresponding to a touch applied from outside the touch display device, a gate driver for sequentially driving all gate lines of the touch display panel once during a unit field period including at least two continuous field periods, in such a manner that a total gate driving period corresponding to a sum of individual gate driving periods of all gate lines is shorter than the unit field period, and a touch control unit for defining periods of the unit field period other than the total gate driving period, as a touch sensing period, and performing an operation for sensing a touch on the touch display panel during the touch sensing period.

公开(公告)号：US20150091826A1

公开(公告)日：2015-04-02

申请号：US14480866

申请日：2014-09-09

Applicant: LG Display Co., Ltd.

Inventor： Dae-Seok Oh ,  Ju-Young Lee ,  Bo-Gun Seo ,  Hak-Su Kim ,  Yong-Hwa Park

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G09G3/2096 ,  G09G2310/0227 ,  G09G2320/0233 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2354/00

Abstract: A touch display device includes a touch display panel for displaying an image corresponding to a touch applied from outside the touch display device, a gate driver for sequentially driving all gate lines of the touch display panel once during a unit field period including at least two continuous field periods, in such a manner that a total gate driving period corresponding to a sum of individual gate driving periods of all gate lines is shorter than the unit field period, and a touch control unit for defining periods of the unit field period other than the total gate driving period, as a touch sensing period, and performing an operation for sensing a touch on the touch display panel during the touch sensing period.

Abstract translation: 触摸显示装置包括：触摸显示面板，用于显示与从触摸显示装置的外部施加的触摸对应的图像;栅极驱动器，用于在包括至少两个连续的单位场周期期间顺序地驱动触摸显示面板的所有栅极线一次 场周期，使得对应于所有栅极线的各个栅极驱动周期的总和的总门极驱动周期短于单位场周期;以及触摸控制单元，用于定义除了单位场周期之外的单位场周期的周期 总门驱动周期，作为触摸感测周期，并且在触摸感测时段期间执行用于感测触摸显示面板上的触摸的操作。

公开(公告)号：US09093039B2

公开(公告)日：2015-07-28

申请号：US14053948

申请日：2013-10-15

Applicant: LG Display Co., Ltd.

Inventor： Dae-Seok Oh ,  Yong-Hwa Park

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3648 ,  G09G2310/0205

Abstract: Disclosed is a liquid crystal display device and a method of driving the same, which prevent image-quality defects due to charge variation. In the method of driving the liquid crystal display device including a pixel consisting of first to third sub-pixels which share one data line and are connected to first to third gate lines, one sub-pixel is turned off on a per frame basis, another sub-pixel is charged with a polarity inverted data voltage for a first charge time including a charge time of the turned-off sub-pixel, and the other sub-pixel is charged with a data voltage having the same polarity as a previous data voltage for a second charge time less than the first charge time. The turned-off sub-pixel, the sub-pixel charged with the polarity inverted data voltage, and the sub-pixel charged with the polarity maintained data voltage alternately vary on a per frame basis.

Abstract translation: 公开了一种液晶显示装置及其驱动方法，其防止由于电荷变化引起的图像质量缺陷。 在驱动包括由共享一条数据线并连接到第一至第三栅极线的第一至第三子像素构成的像素的液晶显示装置的方法中，一个子像素基于每帧关闭，另一个 子像素以包括关断子像素的充电时间的第一充电时间的极性反转的数据电压被充电，另一个子像素被充电具有与先前数据电压相同极性的数据电压 第二充电时间小于第一充电时间。 带有极性反转数据电压的关断子像素，充满极性反转数据电压的子像素和充电极性维持数据电压的子像素在每帧的基础上交替变化。