Only the four-sided anti-spy film can achieve anti-peep at all angles. Originally, the anti-peep film has two kinds of anti-peeping and four-sided anti-peeping. However, when the phone is turned up and down, it is found that the content displayed on the screen of the mobile phone can be seen from any angle. When the phone is turned to the left and right, at an angle of about 40° to the line of sight, the screen becomes dark. Keep the cell phone with the anti-spy film perpendicular to the line of sight and find that although the screen is dimmed, you can still see the screen content. Part of the privacy screen protector prevents left and right but does not prevent:After the peep-proof film is attached, the visible area facing the screen is only 60°, and anyone can only see the dark screen from both sides. However, after the privacy screen protector is attached, the screen will be darker. For many "low-headed people", in the small space such as subways and elevators, the content on the screen of mobile phones is easy to "go out." Therefore, many people choose to put a peeping film on the mobile phone to prevent the content on the mobile phone from being sneaked. Sometimes there is a "peeper" who stretches his neck and licks his mobile phone screen. When they brush their mobile phones, they look up inadvertently. With a privacy screen protector, the screen is darkened:Many people have had similar experiences.
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