Luminance /Contrast Ratio - NEC SpectraView Reference 241 User Manual

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4.5.3 Luminance /contrast ratio

Here you can define parameters that are important in different ways.
If you should use several monitors in your environment, it makes sense
to harmonize them to the same visual appearance. These settings allow
you to do so in different ways.
White luminance
The addition of all 3 RGB primaries results in white light of the highest
possible quantity of light. That makes white the brightest color a monitor
can show.
If you reduce the brightness of an LCD monitor or the contrast of a CRT,
the quantity of light and thus the white luminance will be reduced.
All monitors have a different native white luminance. In order to be
visually equal, they need to be calibrated to the same maximum
luminance. The reference is always the monitor with the least bright-
ness. All other monitors must be adjusted to the darkest one.
In order to determine the max. luminance for a given white point, you
need to calibrate the monitor with the „maxi- mum" radio button checked.
In order to determine the luminance of a second monitor, create a white
desktop on that monitor, click the „Measure" button and follow the
instructions on the screen.
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