Blackout 20 Inch LCD Privacy Screen Filter SVL20Manufactured using reliable micro louvre technology, this privacy screen filter creates an appearance of a black screen unless directly in front of it. Helping to reduce glare on the screen while you work, the filter also protects the delicate surface of the screen and is supplied with a soft microfibre cleaning cloth. Privacy screen filter Creates an appearance of a black screen unless directly in front of it Reduces glare while working Protects the