Is there a way to close the monitor but does not lock the computer for Windows 8.1, where this setting option is unavailable

Question

I want to close the monitor, but leave everything else running in the background, just like the monitor is plugged off - but it's a laptop, so you won't find a power button, and no relevant fn key is found though some laptop has this feature.
Is there a software for that?
I've tried some, even found a WINAPI to close the screen, but all of them just lock the whole system.
I think this requires some system configuration, since in a majority versions of Windows there is a setting option for that, but not in this specific version of Windows 8.1.
Running a black splash is a workaround, but in this way the monitor is not really turned off.

RockPaperLz- Mask it or Casket · Answer

This is how you can accomplish this task without even needing any additional software:

Open the Windows Power Options control panel.
Create a new power profile.
Set the power profile to never sleep.
Set the power profile to turn off the display after x minutes.  For your needs, you may want to set this to 1 minute.

That's it!  Your monitor will now turn off after 1 minute of no keyboard or pointing device activity, and applications will continue to run.
Co-authoriship of this answer goes to Mefitico.

fred_dot_u · Answer

If this is not a laptop computer, you will find there is a power button on the monitor that one can press to turn off the screen. It will not impact the operation of the computer.

Is there a way to close the monitor but does not lock the computer for Windows 8.1, where this setting option is unavailable

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