Automagic Forum

There is a display ON action but none for turning the display off

https://android.googlesource.com/platfo ... ol.java#82

Unfortunately this method is not white listed by Google so it can not even be called with reflection in an action Script.
Best option is to use either action Lock Device, Control UI: lockScreen() or on a rooted device simulate a press of the power button in Execute Root Command: input keyevent 26.

Regards,
Martin