Factory Wholesale Android LCD Touch Screen Advertising Touch Screen

The basic principle of a touch screen is that when a user touches the touch screen installed at the front end of the display with their fingers or other objects, the touched position (in coordinate form) will be detected by the touch screen controller and sent to the CPU through an interface (such as RS-232 serial port) to determine the input information. The touch screen system mainly includes two parts: a touch screen controller and a touch detection device. The main function of the touch screen controller is to receive touch information from the touch point detection device, convert it into contact coordinates, and send it to the CPU for processing; The touch detection device is installed at the front end of the display, responsible for detecting the user's touch position and transmitting it to the touch screen controller.

Touch screen, also known as "touch screen" or "touch panel", is an inductive LCD display device that can receive input signals such as contacts. Since the United States first began researching touch screen technology in 1960, it has gone through a process from military applications to widespread adoption. Today, it has become an indispensable interactive device in multiple fields such as smartphones, tablets, retail, healthcare, and education.