DRIVING CIRCUIT AND OPERATING METHOD THEREOF

The present invention provides a driving circuit, applied to an In-cell touch display panel. The In-cell touch display panel has a touch period and a data driving period. The touch period occurs between the data driving period corresponding to a first data line and another data driving period corresponding to a second data line. A common voltage (VCOM) voltage of the In-cell touch display panel has a first level and a second level. The driving circuit includes a determining module and a compensating module. The determining module determines whether a difference between the first level and the second level is larger than a preset value. The compensating module is coupled to the determining module. When the determining result is that the difference between the first level and the second level is larger than the preset value, the compensating module compensates the common voltage in the touch period, so that the first level and the second level are substantially equal.