There are three main types of touch switches implemented on glass panels:
Capacitive electrostatic induction touch switch: This type of touch switch works by utilizing the change in capacitance caused by the human body to trigger a switch on the circuit board.
Capacitive conduction touch switch: This type of touch switch works by utilizing the conductivity of the human body; the change in capacitance between the human body and the silicon chip connected to the circuit board is used as the trigger condition to achieve switch operation.
Resistive modulation touch switch: This type of touch switch works by using a resistor to simulate the change in capacitance of a capacitor; by modulating the power supply voltage and the magnitude of the charge, the switch is triggered.