Touch screen, also known as "touch screen" or "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts. When it touches the graphic button on the screen, the touch screen The haptic feedback system can drive various connection devices according to a pre-programmed program, and can be used to replace the mechanical button panel and create a live-action audio and video effect through the liquid crystal display screen. As the latest computer input device, the touch screen is the simplest, most convenient and natural way of human-computer interaction. It gives multimedia a new look and is an attractive new multimedia interactive device. Mainly used in public information inquiry, leadership office, industrial control, military command, electronic games, ordering songs, multimedia teaching, real estate pre-sales, etc.
The composition of the touch screen:
The touch screen is composed of a touch detecting component and a touch screen controller; the touch detecting component is installed in front of the display screen for detecting the touch position of the user, and accepts the back touch screen controller; and the main function of the touch screen controller is to receive the touch from the touch point detecting device. The information is converted into contact coordinates and sent to the CPU. It can also receive commands from the CPU and execute them.
