Detection method for touch input device

A detection method for a touch input device, the touch input device comprising a touch panel and a control device, the touch panel comprising a plurality of X-directional lines and a plurality of Y-directional lines, and the X-directional lines and Y-directional lines arranged intersecting one another, the method comprising the steps of:

• configuring the X-directional lines as scan lines and configuring the Y-directional lines as sense lines;
• dividing the scan lines into a plurality of groups of scan lines;
• during a first scanning operation, outputting a driving signal to one of the plurality of groups of scan lines;
• after the first scanning operation, receiving voltages on the sense lines and converting the voltages into a plurality of first digital signals;
• storing the first digital signals to a storage unit;
• during a second scanning operation, outputting the driving signal to another group of the plurality of groups of scan lines;
• after the second scanning operation, receiving voltages on the sense lines and converting the voltages into a plurality of second digital signals;
• storing the second digital signals into the storage unit;
• and
• determining a touch status of the touch panel based on the first and second digital signals.