Display Device And Touch Sensing Method Thereof

摘要

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.

主权项

1. A display device comprising:
a timing controller for driving one frame by a time division method so as to alternately perform a displaying driving mode for displaying an image on a display panel and a touch sensing mode for sensing a user's touch; and a touch sensor for determining a DTX compensation block including at least one touch sensing block corresponding to a unit for sensing the user's touch; calculating a compensation representative value which is a DTX value corresponding to a first average of grayscale values applied to a plurality of pixels overlapped with the DTX compensation block, and calculating a sensing block average value which is the DTX value corresponding to a second average of grayscale values applied to a plurality of pixels overlapped with the touch sensing block; and sensing the user's touch by compensating for touch data in accordance with a difference between the compensation representative value and the sensing block average value.