To use Energy Saving feature
Picture Energy Saving
Reduces power consumption by adjusting screen brightness.

Off | Turns off the Energy Saving mode.
Minimum/Medium/Maximum | Applies the pre-set Energy Saving mode.
Screen Off | Screen is turned off and only sound is played. Press any button except Power button on the remote control to turn the screen back on.
Auto | [This feature is available only in some models.] TV sensor detects the ambient lighting and automatically adjusts the screen brightness.