Alienware AW3821DW User Manual page 45

Brightness/ Use this menu to activate Brightness/Contrast
Contrast adjustment.
Brightness Brightness adjusts the luminance of the backlight.
Move the joystick right to increase the brightness level
or move the joystick left to decrease the brightness
level (min. 0 / max. 100).
Contrast Adjust Brightness first, and then adjust Contrast only if
further adjustment is necessary.
Move the joystick right to increase the contrast level or
move the joystick left to decrease the contrast level
(min. 0 / max. 100).
The Contrast function adjusts the degree of difference
between darkness and lightness on the monitor screen.
Operating the monitor | 45