Dell P2412H User's Guide - Page 28

Brightness, Contrast - manual

Page 28 highlights

Brightness Contrast Brightness adjusts the luminance of the backlight. Push the button to increase brightness and push the button to decrease brightness (min 0 ~ max 100). NOTE: Manual adjustment of Brightness is disabled when Energy Smart or Dynamic Contrast is switched on. Adjust Brightness first, and then adjust Contrast only if further adjustment is necessary. Push the button to increase contrast and push the button to decrease contrast (min 0 ~ max 100). The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.

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Brightness
Brightness adjusts the luminance of the backlight.
Push the
button to increase brightness and push the
button to decrease brightness (min 0 ~ max 100).
NOTE:
Manual adjustment of Brightness is disabled when Energy Smart or Dynamic Contrast is switched on.
Contrast
Adjust Brightness first, and then adjust Contrast only if further adjustment is necessary.
Push the
button to increase contrast and push the
button to decrease contrast (min 0 ~ max 100).
The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.