ITO Touch Screen is an interactive input device integrated into electronic display. The operator can simply give instructions by touching the touch screen. The touch screen consists of two conductive layers. The top layer is ITO film while the bottom layer can be either ITO film or ITO glass. The top layer is suspended by very small spacer dots. The smallest dot is 0.035mm .
When the operator touches the touch screen, the conductive inner surface of the ITO film makes contact with the conductive coating on the top surface of the ITO film or ITO glass. Then, the controller senses the touch and passes the information to the corresponded IC.