How Touchscreen PCs Work

For the convenience of operation, when people use the touch screen instead of the mouse or keyboard to work, we must first touch the touch screen installed in front of the display with our fingers or other objects, and then the system will position the selection information input according to the icon or menu position touched by the finger. The touch screen is composed of a touch detection part and a touch screen controller; The touch detection component is installed in front of the display screen to detect the user's touch position and accept the rear touch screen controller; 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 then send it to the CPU. It can also receive commands from the CPU and execute them.