Lg Display Co., Ltd.

Byounggwan Lee

YoungGyu Kim

Yoonnara Jang

Kyounghwan Kim

Sunyoung Kim

KiDuk Kim

Juhong Kim

Sujin Kwon

Sunhwa Lee

A display device includes a deviation compensating circuit to receive a feedback touch driving signal from a sensor line connected to one of a plurality of touch sensor, receive a first feedback AC (alternating current) signal from a data line connected to one of a plurality of pixels, receive a second feedback AC signal from a gate line connected to the pixels, detect a phase deviation and an amplitude deviation between the feedback touch driving signal and the first and the second feedback AC signals, and generate a compensation touch driving signal, a first compensation AC signal, and a second compensation AC signal for compensating for the phase deviation and the amplitude deviation.

Display device and method for driving the same

Provided are a touch sensor embedded display device and a method for driving the same. A method includes: sequentially, in the display period: performing a display scan of a first area of the display panel based on one display line; and applying data of an input image to the pixels of the first area; simultaneously performing: a touch scan of a first touch line of the display panel and a touch scan of a second touch line of the display panel in a touch period following the display period; and simultaneously sensing touch inputs of the touch sensors on the first and second touch lines in the touch period, wherein each of the first and second touch lines overlaps a plurality of display lines, and wherein a width of each of the first and second touch lines is greater than a width of each of the plurality of display lines.

Touch sensor embedded display device and method for driving the same

The present disclosure is related to a touch sensing system and a display apparatus decreasing a sensing time and enabling an effective touch sensing, although a number of sensing electrodes increases according to an increase of an area of a touch panel.

Touch sensing system and display apparatus

A liquid crystal display includes a liquid crystal display panel that is divided into a first display surface and a second display surface including data lines and gate lines, a first data driving circuit configured to drive data lines of the first display surface, a second data driving circuit configured to drive data lines of the second display surface, a gate driving circuit configured to sequentially supply a gate pulse for scanning the first display surface to gate lines of the first display surface and sequentially supply a gate pulse for scanning the second display surface to gate lines of the second display surface, a timing controller configured to divide a unit frame period into a first sub-frame period and a second sub-frame period, a backlight unit configured to provide light to the liquid crystal display panel wherein the backlight unit includes a plurality of light sources, and a light source driving circuit configured to turn off all the plurality of light sources during the first sub-frame period and turn on all the plurality of light sources at a turn-on time within the second sub-frame period.

Growing community of inventors

Paju-si, South Korea

Byounggwan Lee