Turn your monitor off using your keyboard
Using the Monitor Off Utility is a quick and easy way to turn off your monitor when you step away from your computer. As can be seen in the below screenshot, this utility allows the user to setup any HotKey to turn off their monitor from anywhere in Windows. In addition to being able to shut off the monitor, this utility can have a shortcut key start a screen saver and lock the workstation as an extra form of security.
Not only does this program help protect your computer it is the best way to save money on your power bill if your computer is on all day.
Tip: Although this utility is claiming to turn off the monitor, it is actually putting the monitor into Standby. Although Standby is very close to turning off your monitor, we'd still recommend if you're going to be away from your computer for several hours or for the night that you turn off the monitor instead of having it in Standby.