As mobile phone become more and more important, mobile phones have become a necessity in our lives. With the development of this trend, most people nowadays will intsall a screen protector on the phone screen, one is to prevent the phone screen from scratch, and the other is to prevent phone screen from being accidentally dropped.

Moreover, cell phone screen protector have evolved into different kinds and offer different functions. But now many people have doubts, will the mobile phone protective film affect the sensitivity of the device?

There have to say, now a mobile phone touch screen technology, most of the current mobile phone in order to pass the screen touch speed, through the sensitivity of the sensing, capacitive screen technology is applied. This technology mainly uses the conductor characteristics of the human body and the interaction of the screen capacitance to perform the sensing operation.

Simply speaking, the human body is equivalent to an electrode. When the finger touches the phone screen, the screen is inductively opposite to the other electrode. The two sides meet to form a capacitor, and then the corresponding controller can accurately position the finger and perform corresponding Touch, to achieve accurate touch sensing.

Moreover, because the sensing speed occurring in this process is very fast and the sensitivity is high, this technology gradually replaces the traditional screen technology and becomes the mainstream technology of the current mobile phone screen application. But he also has a disadvantage, that is, wet water can not be sensed. Because water is also a kind of conductive body, the combined action of the three parties will cause the induction to be not accurately recognized.

Then some people have said that the screen protector is not a conductive material, so there is no influence on the touch of the mobile phone.

Although this is true in theory, in fact, due to the different materials and thickness of the protective film, it has some influence on the sensitivity of the screen. Especially on screen fingerprint recognition, the impact is more obvious. Nowadays, many smart phones use screen fingerprint recognition technology. However, because the mobile phone screen guard is not suitable after the screen protector is applied, or the thickness is too large, the recognition accuracy is reduced, and sometimes the fingerprint recognition is not very sensitive.

Although it is not excluded, there are still imperfections due to technical screen fingerprinting. Now there is a more intuitive way to open the phone settings, enter the developer options, then drop down to find "tap action feedback", open, and then we can slide on the screen, the screen will show a small ball With the movement of the finger, in the case of moving at different speeds, by observing the different moving distance between the ball and the finger, the delay phenomenon of the touch sensing of the mobile phone screen can be seen.

However, many mobile phone films now have less and less impact on mobile phone fingerprint recognition and touch sensitivity. I believe that new technologies will bring better mobile phone experience to users in the future.