Advanced contrast test, Advanced | premium calibration tools – Monoprice 9497 Disney World of Wonder User Manual
Page 11

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visible during contrast adjustment. Your
display is expected to show ideal white
elements distinct from the background. If
the geometric elements darker than ideal
white begin blending into the background
before proper light output is reached,
your monitor is “clipping,” or losing detail
in the brightest whites of video. Reducing
contrast may remedy this at the expense
of a dimmer image. You may expect “white
clipping” behavior in older cRT monitors, projectors with modest
light output expectations or other aging display systems that may
be getting worn out.
Please be aware the contrast adjustment will interact with the
Brightness control as set with the Black checkerboard pattern
found in the previous test on this disc. You will need to return
to both test patterns several times in order to optimize both the
contrast and Brightness settings.
white checkerboard
This moving test pattern (figure 20) is designed to fine tune the
contrast level of a display system that affects the maximum light
output from the display. It consists of a super white background
with an overlay of geometric shapes of different brightness levels.
The test will identify the capa-
city of your monitor to produce
the required light level for a true
white object without loss of de-
tail in the brightest areas. To aid
in identifying fine bright object
details, the geometric shapes
will darken to reveal themselves
initially and then move slightly
during the adjustment phase
for easy recognition.
The adjustment procedure is basically the same as using the PlUGE
signal found on the color Bar pattern except these elements are
graduated with many more brightness levels. The illustration to the
right (figure 21) is the same pattern with the background darkened
revealing the elements you’ll be looking for.
Adjust the contrast control of the display so the elements labeled
“ideal white” have a light output equivalent to white snow, bright
clouds or a brightly lit white shirt. Elements brighter than ideal
white are expected to disappear into the background. The last
visible element is an indicator of how much additional light output,
or “headroom,” your monitor can deliver. The display’s full dynamic
range is utilized when the “Ideal White” elements just become fully
(figure 20)*
aDVaNCED CONtRast tEst
overview
adjustMent
contrast
(figure 21)
advanced | PREmIUm cAlIBRATIOn TOOlS
Monitor selection
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Aspect Ratio
see page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
*Digital Reference Standard