Capacitive touch screen performance features, touch detection and positioning, various touch screen technologies rely on their own sensors to work, even some touch screens themselves are a set of sensors.The reaction speed, reliability, stability and life of the touch screen are determined by the positioning principles and the sensors used.1. They are completely isolated working environment, free from dust, moisture and oil;2. They can be touched with any object, and can be used to write and draw. This is their big advantage.3. The precision of the touch screen depends only on the precision of A/D conversion, so it can easily reach 4096*4096.