Dell E1914H User Manual page 32

Brightness
Contrast
32 Operating the Monitor

Allows you to adjust the brightness or luminance of the
backlight.
Press the key to increase brightness and press the
key to decrease brightness (min 0 ~ max 100).
Allows you to adjust the contrast or the degree of
difference between darkness and lightness on the monitor
screen. Adjust brightness first, and adjust contrast only if
you need further adjustment.
Press the key to increase contrast and press the
to decrease contrast (min 0 ~ max 100).
key