9 Inch Capacitive Touch Screen Panel

Touch Screen Technology - How It Works

There are three components used intechnology:

The touch sensor is a panel with a touch responsive surface. Systems are built based on different

types of sensors: resistive (most common), surface acoustic wave, and capacitive (most smart

phones). However, in general sensors have an electrical current running through them and touching

the screen causes a voltage change. The voltage change signals the location of the touching.



The controller is the hardware that converts the voltage changes on the sensor into signals the

computer or other device can receive.

Software tells the computer, Smartphone, game device, etc, what\'s happening on the sensor and the

information coming from the controller. Who\'s touching what where; and allows the computer or

phone to react accordingly.