Patent ID: 8917101

Claim:
A touch detection method for a touch control device including a touch panel, the touch detection method comprising: examining whether charging rate of a variable charging capacity for charging a measured capacitor of the touch panel and a discharging rate of a variable discharging capacity for discharging the measured capacitor are determined; when the charging rate of the variable charging capacity and the discharging rate of the variable discharging capacity are determined, charging and discharging the measured capacitor by using the variable charging capacity and the variable discharging capacity and receiving a count value representing the capacitance of the measured capacitor; examining whether a base count value is set, the base count value corresponding to the capacitance of the measured capacitor when the touch panel is not touched; when the base count value is set, calculating a difference between the count value and the base count value, for determining whether the touch panel is touched according to the difference; examining whether the count value is in a predetermined range; and when the count value is out of the predetermined range, performing a charging and discharging capacity setting process for adjusting the charging rate of the variable charging capacity and the discharging rate of the variable discharging capacity.