LG E2350V Manuale Proprietario

On Screen Display(OSD) Selection and Adjustment 

Switch to full screen mode according to input
image signal.

*This function works only if input resolution is
lower than monitor ratio (16:9).

If select on,it automatically controls the
brightness of display to best suit the
surrounding working environment,providing
the optimal viewing condition and maximized
user convenience.
If select off,auto brightness is off.