Capacitive touch screen/panel (TP) includes 2 and 3 layers. The top payer is protection cover and the material can be tempering glass, acrylic & PET. The bottom layer is called function or sensor layer. The function layer can be a piece of glass with ITO coating on both side surface. It also can be 2 pieces of PET. Each PET will only have ITO coating on the side facing to the top cover. With different material and structure, we call it G+G,P+g,G+F+F..... Cap TP can be provided the I2C and USB I/O interface on its FPC. Its tempering glass cover also can resist 8H scratching. Clients can customize any size and artwork printing on cap touch panel as well.