The principle of touch screen The mobile phones, tablet computers, etc. we play are all touch screens. Why can the touch screen respond to human touch? The touch screen is another innovation of computer input technology. It is very convenient to complete information input and give orders as long as you lightly touch it with your finger. The touch point on the touch screen corresponds to a function switch, and the corresponding function program will start immediately when the finger touches this switch area. Executes a sequence of commands in green. The key technology of the touch screen is to measure the exact position and coordinates of the touch point. Taking the surface…