Hi, good day!
You can set the display to turn off after 30 minutes by following these steps below.
Press Windows key + I to open Settings
Click System > Power or Power & battery
Expand Screen and sleep
Set Turn off my screen after to 30 minutes for
When plugged in
On battery power (if you're using a laptop and want the same setting)
I look forward to receiving your update and I'm willing to collaborate with you till we resolve the issue. Do keep me informed by clicking "Add comment" below.