A touch screen  can recognize a touch to its surface area, either with a finger or a stylus. Touch screens are commonly used on cell phones, PDAs, ATM machines, video games and even supermarket terminals, PC monitors, electrical devices, etc

A capacitive touch screen is a control display that uses the conductive touch of a human finger or a specialized device for input. Unlike resistive and surface wave panels, which can sense input from either fingers or simple styluses, capacitive touch screen panels must be touched with a finger or a special capacitive pen or glove. The panel is coated with a material that can store electrical charges and the location of touch to the screen is signaled by the change in capacitance in that location. When a capacitive panel is touched, a small amount of charge is drawn to the point of contact, which becomes a functional capacitor. The change in the electrostatic field is measured to find the location. In some designs, circuits located at each corner of the panel measure the charge and send the information to the controller for processing. In multi-touchscreens, sensors are arranged in a grid to enable more complex input. Input to resistive touch screens works through pressure resulting in two conductive layer

Multi-Touch technology works with TrackPads (or TouchPads) and touch-screen interfaces, like those found on laptops, smartphones and tablets. It allows users to interact with their devices in a multitude of ways, by expanding the number of interface options. Rather than simply swipe and tap, Multi-Touch allows for zooming, scrolling, selecting, and more. It is designed to provide touch-screen interfaces with the same sort of flexibility and usability that a traditional mouse and keyboard provide, while also providing for a more intuitive and seamless user experience. Our capacitive touch screen can support 5/10 touch points.