How to turn off the asus zenbook duo second screen

[nthac]

I notice when I click the display option of "showing only on 1", the second screen is still standing by, not completely turned off. How to I turn off the second screen completely to save the power?

[Falcon_ASUS]

@nthac
Unfortunately, the second screen cannot be turned off completely.
Sorry for any inconvenience it may be caused.