Black Screen Test | Online Tool

People use the black screen for: For make the second monitor dark without turning it off, use a black screen.

When playing a moody game or viewing a movie that proved to be worthwhile, quickly switch off the second monitor without turning it off. To save power, use a blank screen

Trying to cut carbon emissions and conserve power. Black screen to conceal that the pc is on

To turn on my four monitors rather than putting them to sleep before I go to bed. Monitor with a black screen to clean

When I wipe my screen, stains are easier to see. For a dark background, use a black screen.