You’ll have to face the screen head-on to make sure that you can see the screen properly. On the flip side, if it’s too narrow, it may impact your own viewing experience. If a viewing angle is too wide, it defeats the purpose of having a privacy screen protector. Viewing angle – The viewing angle has to be narrow enough so that people standing or sitting next to you are out of range.However, if complete privacy is what you are looking for, 4-way privacy filters work in both orientations. The obvious advantage here is that if you want to share something on your phone, all you have to do is turn the phone to landscape. Two-way or four-way privacy – A two-way filter shows a darkened screen only in the portrait orientation.Tempered glass is much better when it comes to protecting the display, though. Finding full coverage with a tempered glass panel can be a touch difficult, especially if the phone has a curved screen. Tempered glass or film – This is a personal preference regarding the type of display protection you’re looking for.These provide a better viewing experience than other options that are just darkened glass or film. Micro louver technology – Some privacy screen protectors use micro louver technology.There are some things you should know before buying one, though. There are quite a few brands that make privacy screen protectors. As many smart phones have high-definition screens that are not good for the eyes, the anti-spy film matte surfaces can reduce glare and reflection ,it can protect your eyes.The best privacy screen protectors and what to look for YIPI is the screen protector manufacturer ,adopts Japan's imported ultra-thin TPU material of about 0.18mm, which makes the privacy screen protector highly transparent, the screen brightness will not be dimmed, and the touch function of the smart phone is as usual. The privacy film itself has a thickness of about 0.25 mm, and sometimes the touch screen becomes insensitive after being attached. The anti-peep film is a function of preventing sneak peek by blocking light of a certain angle. Touch function becomes insensitive:There are two main types of privacy screen protector on the market, one is PET, which is mainly used on the touch screen of mobile phones and tablets, and the other is PC material, which is generally used on computer screens. 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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