Display driving apparatus and method for driving touch display panel

A method for driving a touch display panel, wherein the touch display panel comprises a plurality of gate drivers and a plurality of scan lines, the method comprising:

• providing a plurality of clock signals to the gate drivers during a display period to drive the gate drivers to drive the scan lines during the scan operation periods according to the clock signals, wherein the display period comprises the scan operation periods;
• and
• further providing a clear signal and a pre-charge signal to at least one of the gate drivers to drive the touch display panel to perform a touch sensing operation during at least one touch sensing period,
• wherein the at least one touch sensing period is inserted between the scan operation periods according to the clear signal and the pre-charge signal,
• wherein the clear signal comprises a first pulse, the pre-charge signal comprises a second pulse, and the at least one touch sensing period starts at a rising edge of the first pulse and finishes at a falling edge of the second pulse,
• wherein on the touch display panel, an output of each of the gate drivers serves as an input of a next gate driver thereof, and the gate drivers are grouped into a plurality of gate driving stages,
• in the step of further providing the clear signal and the pre-charge signal to the at least one of the gate drivers, the clear signal is transmitted to a last gate driver of a first gate driving stage of the gate driving stages, and the pre-charge signal is transmitted to a first gate driver of a second gate driving stage of the gate driving stages,
• wherein in the step of further providing the clear signal and the pre-charge signal to the at least one of the gate drivers, the clear signal is further transmitted to a first gate driver of a second gate driving stage of the gate driving stages, and the pre-charge signal is further transmitted to a last gate driver of a first gate driving stage of the gate driving stages.