Patent ID: 9547390
Date: 2017-01-17
CPC Classifications: G06F,G09G

Claim:
1. A touch screen display device comprising: a display panel configured to include a plurality of pixels and a plurality of common electrodes; a gate driver configured to group a plurality of gate lines on the display panel into at least two blocks and sequentially drive the at least two blocks in a first display time interval and a second display time interval; a data driver configured to drive a plurality of data lines on the display panel during the first display time interval and the second display time interval; a common voltage generator configured to apply a common voltage to the common electrodes during the first display time interval and the second display time interval; a touch controller configured to detect a touch position on the display panel using a capacitance being induced in the common electrodes during a touch sensing time interval from a time point after a respective block is driven in the first display time interval to another time point before a succeeding block is driven in the second display time interval; and an in-set signal controller configured to store, in a memory, in-set signals corresponding to data signals provided to the pixels on a last gate line within the respective block, the in-set signals stored prior to the touch sensing interval and during the first display time interval when the respective block is driven, the in-set signals supplied from the memory to the data lines after the touch sensing time interval and before the second display time interval during which the succeeding block is driven, wherein the data lines are driven with a non-data voltage during the touch sensing time interval.