Touch display device

A touch display device comprising:

• a plurality of pixels;
• a plurality of source lines connected to the plurality of pixels and configured to receive a plurality of source signals;
• a common electrode configured to supply a driving voltage to the plurality of pixels;
• a plurality of first capacitors between the plurality of source lines and the common electrode;
• and
• a plurality of touch electrodes coupled to the common electrode through a plurality of second capacitors,
• wherein the plurality of source lines are further configured to provide the plurality of source signals to the common electrode through the plurality of first capacitors as a plurality of touch driving signals, and
• wherein the plurality of touch electrodes are further configured to receive the plurality of touch driving signals through the plurality of second capacitors.

A touch display device comprising:

• a plurality of source lines;
• a common electrode coupled to the plurality of source lines;
• a touch electrode coupled to the common electrode and configured to receive a plurality of source signals from the plurality of source lines as a touch driving signal through the common electrode;
• and
• a touch driving circuit configured to generate touch information by correcting a touch signal received from the touch electrode based on gray information corresponding to the plurality of source signals.