You can set the brightness of the indoor unit display screen.
Press the Light button to set the light off function.
Press the Function button.
Press the L or M button until the below icon appears at the bottom of the display screen. Then press the OK button.
The button turns the display screen on or off.
If the brightness of an indoor unit's display is set to off, pressing a button on the wireless remote control automatically turns the display on for a while.
This function may operate differently depending on the model.