Mobile Privacy Film is a protective film attached to the screen of the mobile phone to prevent others from peeping. This mobile phone film uses ultra-fine shutter optical technology. Its principle is very similar to that of shutters. You can understand that the privacy film is to shrink the shutters by tens of thousands of times and stick it on the screen of the mobile phone. In this way, the person standing beside you must be at the same frontal angle as you in order to see your mobile phone screen clearly, and the meaning of privacy protection comes from this. In fact, this technology has been used in the screens of bank ATMs a long time ago. Such privacy films are also attached to many computer screens in the office.

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The mobile phone with the privacy film attached can only see the content displayed on the screen from the front. Off-center, the screen gets darker, until it's completely black. Therefore, the anti-peeping film does have a good anti-peeping effect. In addition, the price of privacy protection film is low, and many friends who pay attention to privacy protection have decided to start.

But its shortcomings are also obvious. The small "leaf" structure in the privacy film will block part of the light. Even if you view the screen from the front, you will still feel that the screen is much darker than before the film, and the brightness and color are much inferior. . The mobile phone with the privacy film attached needs to manually adjust the brightness, and the power consumption increases significantly. Looking at the screen under long-term dim brightness conditions will inevitably affect your eyesight a little.

At present, there is no corresponding industry standard for privacy films. The quality of privacy films on the market varies. Some merchants are greedy for profits. , and also damages eyesight. Xiaoyi reminds you that you must do your homework when choosing, and choose a privacy film from a regular manufacturer with strong light transmission and less impact on screen brightness and color.