The capacity touch controls the detection to come from the capacity micro change which finger moves causes. The different according to the principle of work, may divide into the Surface Capacitive Touch, SCT and Projected Capacitive Touch，PCT

The Surface Capacitive Touch, SCT is common in great size outdoors application, for example public information platform (Kiosk、Point of Information；POI) and public services platform (Point of Sales/Services；POS)

At present the projected capacity touch had two kind of structures respectively are the glass type capacity (Glass/Glass Capacitive Touch) and the film type capacity (Film/Film Capacitive Touch), projected capacity touch controls its application to multiply day after day, in the consumer electronic products, already many touches controls kneading board's application to multi-touch smart phone, the tablet, AIO, the E-book, the GPS guidance, MP3~5 primarily.