Samsung LS21BRBAB-XAA - Manual (Page 29)

MagicBright™
/ Mode
Then push button again to circle through available
preconfigured modes.
( Custom → Entertain → Internet → Text )
Digital(DVD)/Video/S-Video : Mode
The Monitor has four automatic picture settings that are
preset at the factory. Then push button again to circle
through available preconfigured modes.
( Dynamic → Standard → Movie → Custom )
Mode
Brightness : Available in Analog/Digital Mode Only
Menu Description
Brightness When OSD is not on the screen, push the button to adjust brightness.
SOURCE