BlankScreen

BlankScreen is a lightweight and user-friendly piece of software whose main function is to help you turn to black one of the two monitors on your dual screen system, with the simple push of a button.
The utility is designed for moments such as when you are watching a movie on one monitor and want to prevent lights reflecting on the other device, or movement distracting your attention from the film.
At the same time, when you connect your computer through a HDMI cable to your television set, in order to view a movie on the big screen, you need to keep the PC near because of the length of the cable. As such, most likely it remains in your field of vision.
When playing the video, you can see it on both screens and this can prove quite annoying. If you do not want to turn off the monitor and only turn it black it so as to stop it from becoming a distraction, then BlankScreen can cater precisely to this need.
The installation process of this application does not feature any noteworthy events, and you are able to work with it immediately after completion. After launching it, BlankScreen can detect the two monitors on your system and allows you to select the one you wish to darken, by pressing on the appropriate button 'Monitor 1' or 'Monitor 2'.
If you only have one monitor connected, you can blacken it using the first button. When activated, BlankScreen can also display the total resolution of your device. If you wish to quit the program, you just need to click on 'Exit'.
In conclusion, BlankScreen is a useful tool that enables you darken one monitor from your dual screen system, enabling you to watch movies on a single device, without the other one distracting you.