Buy 7 inch capacitive touch screen display at Campus Component. Capacitive touchscreens are coated with a transparent conductive film. A capacitive touch screen is a control display that uses the conductive touch of a human finger or a specialized device for input. When a fingertip comes into contact with a capacitative touchscreen, it can use the conductivity of the human body as a means for input. Electrostatic capacitive touchscreens are used in numerous smartphones such as Apple iPads and iPhones.