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A monitor filter is an accessory to the computer display to filter out the light reflected from the smooth glass surface of a CRT or flat panel display.[1] Many also include a ground to dissipate static buildup. A secondary use for monitor filters is privacy as they decrease the viewing angle of a monitor, preventing it from being viewed from the side; in this case, they are also called privacy screens.
privacy screen (microscope photo)
The operating principle of a slat protection film (drawing)
The standard type of anti-glare filter consists of a coating that reduces the reflection from a glass or plastic surface.[2] These are manufactured from polycarbonate or acrylic plastic.[1] An older variety of anti-glare filter used a mesh filter that had the appearance of a nylon screen. Although effective, a mesh filter also caused degradation of the image quality.[2]
Marketing names of privacy filters:
HP's "SureView"[3]
Lenovo's "PrivacyGuard"[4]
Dell's "SafeScreen"
Support for privacy screen is available since Linux kernel 5.17 that expose it through Direct Rendering Manager and is used by GNOME 42.
^ abCite error: The named reference kruegle2006 was invoked but never defined (see the help page).
^ abCite error: The named reference anshel2005 was invoked but never defined (see the help page).
^"HP SureView Whitepaper" (PDF). hp.com.
^"ThinkPad PrivacyGuard with PrivacyAlert". youtube.com. Lenovo. Archived from the original on 2021-12-14.
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Global Information
privacy screen (microscope photo)
The operating principle of a slat protection film (drawing)
