Shield private and valued information on your laptop from snooping onlookers with the Targus 15.4" Widescreen Laptop Privacy Filter Screen. The Targus 15.4" Privacy Screen protects your information with tiny vertical blinds on the surface of the screen, narrowing the viewing angle so information is only visible directly in front of the monitor. Onlookers will only see a dark unclear screen when attempting to view the information from a side angle. In addition, this privacy screen also blocks indoor and outdoor glare!