The principle of capacitive induction touch screen is very simple, that is, when the finger touches the screen, there will be a coupling capacitor on the touch screen surface. The current of the four electrodes flows through the finger, which has a great relationship with the power of the mobile phone. It will react and give instructions.HTC, Samsung, Xiaomi and other Android phones basically use capacitive screen, which is used for multi-point processing. At present, touch screen only needs capacitive screen and resistive screen, and capacitance can be multi touch, but resistance can't. the resistance style is relatively old, and it can't survive without the support of big brand mobile phones in today's shopping malls.

　　Compared with the same resistive screen, capacitive induction touch screen pays more attention to its convenience and rapidity. It only needs touch screen to operate. Because capacitive touch screen needs to sense current to respond, it only needs to put it in the pocket and can't carry out some activities without touching it. It's very safe, and it won't be embarrassing to make a phone call because you don't know. Compared with resistance screen, capacitance screen can prevent dust, sand and damage.With the guarantee of its own technology, its own high film induction, has a great cleaning function.Although it is easy to drift and the cost is a little higher, it seems that the capacitor screen has no more shortcomings. According to the survey of shopping malls, the usage of capacitive screen is increasing gradually, and the future shopping malls and prospects are vast. With the best-selling Apple mobile phones as stepping stones, capacitive screen is on the train to spring.

　　Capacitive touch screen has a vast market and a good prospect. Although resistive screen is deeply rooted in China, with the launch of capacitive screen, resistive screen will be eliminated and completely replaced by capacitive touch screen.