the privacy filter and screen saver for mobile phones and tablets of 3M is a thin plastic sheet that prevents the screen content can be viewed from side angles.
Some time ago we had occasion to test the laptop version .In this case its operation is the same, but the sleeves are adapted to the screen size of mobile phones (iPhone 3G / S and 4 / S) and tablet (iPad, Samsung Galaxy Pad, Motorola Xoom and Black
mobile with filter
in the case of the model to iPhone 4 S (18 euros), whose screen has a viewing angle of 178 degrees, the 3M filter reduces this angle to about 60 degrees. That is, only looking at the screen is facing the full content of it, while as a wider field becomes darker side shown partially to completely black.
Their placement is as simple as a conventional project-bond also plays that role, and can be removed without leaving sticky marks.
In the case of phone model is only effective with the phone vertically.Turning the phone horizontally and place the darkening effect is lost.
In models for tablets it is the same: it is only effective in vertical or horizontal. In this case you can choose whether you prefer a model that acts in a direction or another.
Maybe opt for a privacy filter is a good idea in view of the techniques developed for remotely know what is written on
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