Method of driving touch panel and touch with display driver system using the same

A touch display system, comprising:

• a touch panel, comprising:
• a plurality of display pixels, each comprising a light emission element and a driving transistor and having a first power receiving terminal and a second power receiving terminal;
• and
• a touch sensing electrode layer, comprising a plurality of touch sensing electrodes, each of which coupled to the light emission element of at least one of the plurality of display pixels;
• a controller, coupled to the touch sensing electrode layer and the first power receiving terminal of the plurality of display pixels, for transmitting a first driving signal to at least one of the touch sensing electrodes served as an electrode of the corresponding light emission element during a touch sensing period, wherein the touch sensing electrode is coupled to the first power receiving terminal of the at least one display pixel coupled to the touch sensing electrode;
• a power controller, coupled to the controller, for generating a second power supply voltage and a third power supply voltage according to a control signal from the controller;
• and
• a power switch, coupled to the power controller, for generating a second driving signal by outputting the second power supply voltage and the third power supply voltage alternately, and transmitting the second driving signal to the second power receiving terminal of the at least one display pixel coupled to the touch sensing electrode receiving the first driving signal when the first driving signal is transmitted.