Touch Panel

It works as off of an electrostatic field that is created by layers of conductive materials that are individually etched to form a grid pattern of electrodes. A touch event occurs when a finger or conductive stylus interferes with the electric field projected above the surface. The change in capacitance is detected by the controller which interprets the x and y coordinates of the event. Multiple fingers can be tracked simultaneously and the controller supports common multi-touch gestures.