The function of the capacitive touch screen is very simple, that is, the finger touches the screen. The human body is initially an electric field. The surface of the touch screen has a coupling capacitor. The current of the four electrodes flows through the finger, which has a lot to do with the power supply of the mobile phone. pc panel mini， It will react and the instructions to be issued. The capacitive screen itself is a multi-point control function. At present, there are only two types of capacitive touch screens and resistive touch screens. The capacitive touch screen can be multi-touch, and the resistance is not good, and the resistance style is relatively old.

Compared with the same resistive screen, the capacitive touch screen pays more attention to its convenience. It only needs a touch screen to operate. Because the capacitive touch screen needs to sense current to respond, it can only be placed in a pocket without touching it by hand. It's safe, and it's not awkward to call because you don't know. Compared with resistive screens and capacitive screens, it has the advantages of dust-proof, sand-proof and loss-proof. Under the premise of ensuring its own technology, its high film induction has a good cleaning function. Although the capacitive screen has drift capability and slightly higher cost, it does not seem to have any disadvantages. According to the survey of shopping centers, the use of capacitive screens is increasing. In the future, shopping centers and prospects are broad.

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