Touch Display Device, Method for Driving the Same, Driving Circuit, Data-Driving Circuit, and Gate-Driving Circuit

A method for driving a touch display device comprising a display panel including a first data line, a first gate line, a first touch signal line and a first touch electrode, a gate-driving circuit configured to output a turn-on gate signal or a turn-off gate signal to the first gate line, a data-driving circuit configured to output a data signals to the first data line, and a touch-driving circuit, the method comprising:

• outputting a touch-driving signal to the first touch electrode via the first touch signal line for sensing a touch;
• and
• detecting occurrence of a touch or coordinates of the touch based on at least a signal received through the first touch electrode,
• wherein the touch-driving signal is a swinging signal having a first level voltage and a second level voltage,
• wherein the data-driving circuit outputs a first data signal having a third level voltage to the first data line during a second level voltage period of the touch-driving signal, and
• wherein the third level voltage of the first data signal is a combined voltage of an image data voltage and a voltage difference between the first level voltage and the second level voltage of the touch-driving signal.

A driving circuit for driving a display panel including a first data line, a first gate line, a first touch signal line, and a first touch electrode, the driving circuit comprising:

• a data-driving circuit configured to output a data signals to the first data line;
• and
• a touch-driving circuit configured to output a touch-driving signal to the first touch electrode via the first touch signal line for sensing a touch,
• wherein the touch-driving signal is a swinging signal having a first level voltage and a second level voltage,
• wherein the data-driving circuit outputs a first data signal having a third level voltage to the first data line during a second level voltage period of the touch-driving signal, and
• wherein the third level voltage of the first data signal is a combined voltage of an image data voltage and a voltage difference between the first level voltage and the second level voltage of the touch-driving signal.