Touchscreen (touch screen), also known as "touch screen ", "Touch panel ", is a kind of inductive liquid crystal display device which can receive the touch-first input signal, when touching the graphic button on the screen, the tactile feedback system on the screen can drive various connecting devices according to Preprogrammed program. Can be used to replace the mechanical button panel, and by the liquid crystal display screen to create a vivid audio-visual effect.
As a new type of computer input device, touch screen is the simplest, convenient and natural man-machine interaction method at present. It gives the multimedia a new look and is an attractive new multimedia interactive device. Mainly used for public information inquiries, leading office, industrial control, military command, video games, song à la carte, multimedia teaching, real estate pre-sale and so on.