Circuit and method for driving touch substrate, touch device and operating method of the same

A method for driving a touch substrate, the touch substrate comprising a plurality of touch electrodes, the method comprising:

• inputting first driving signals to respective ones of the plurality of touch electrodes sequentially in a first time duration within a touch period;
• and
• inputting second driving signals to the respective ones of the plurality of touch electrodes in a second time duration within the touch period, wherein signal strengths of the second driving signals are larger than signal strengths of the first driving signals,
• wherein prior to the inputting the second driving signals to the respective ones of the plurality of touch electrodes, the method further comprises dividing the plurality of touch electrodes into multiple groups of touch electrodes, wherein each group of the multiple groups of touch electrodes comprises at least one touch electrode of the plurality of touch electrodes;
• and
• the inputting the second driving signals to the respective ones of the plurality of touch electrodes comprises inputting the second driving signals to the multiple groups of touch electrodes sequentially, wherein the second driving signal inputted to a corresponding group of touch electrodes is inputted to the at least one touch electrode included in the corresponding group of touch electrodes simultaneously.