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Clarity Visual Systems
The color balance menu provides control over the individual RED,
GREEN, and BLUE settings to balance the white color, as well as an
ALL adjustment to control the overall luminance. In addition, similar
control for the RED, GREEN, and BLUE settings is provided to adjust
the balance of the gray shades without affecting the white balance.
For white balancing, the individual RED, GREEN, and BLUE color
selections have a number associated with them between 0 and 31.
Zero is the darkest and 031 the brightest. The ALL selection allows all
of the balance settings to be adjusted simultaneously. The up/down
arrow keys moves the cursor from All to Red, Green, Blue in the
White column, then All, Red, Green, and Blue in the Gray column,
then back to All in the White column again. The left/right arrow keys
increment and decrement the brightness number.
For gray balancing, the individual RED, GREEN, and BLUE balance
settings have a number associated with them between 0 and 7. Zero
is the darkest and 007 the brightest.
The following chart shows the relationship of the menu item
adjustments.
1. Display an all-white
image
2. Open the Color
menu
3. Maximize all settings
4. Identify the least-
bright display in the
system
5. Luminance match
the displays
6. Color balance the
displays – white
mode
7. Adjust the next
display
June 1999
40
On each display in the video wall, open the Misc Control
menu, select Test Pattern and choose White.
Press the Color button on the remote control, or choose
Color Balance from the main menu and press Enter.
Adjust the WHT setting of ALL displays so they are at 031
and the GRY setting of ALL displays to 007.
The darkest display is already as bright as it will ever be. This
display will serve as a baseline to which the other displays
will be adjusted, since it cannot be adjusted to be brighter.
Note: The baseline display does not have to be the middle
one. It should be the darkest one, wherever it is in the wall.
Beginning with the display next to the baseline display, adjust
the ALL settings on the white levels to approximately match
the luminance (brightness) of the baseline unit.
Adjust the relative amounts of RED, GREEN, and BLUE in
the white (WHT) column to achieve the best match in color
and luminance to the baseline display.
If a color appears to need to be increased, but that color is
already up as high as it can go, then the other two colors can
be reduced. For instance, if you need the white to be have
more red, but red is already at 031, reduce the green and
blue. This will make the display look more red.
Adjust each of the displays for white balance, working
outward from the baseline unit. Do not go to the next step of
adjusting for Gray until you are satisfied that all the displays
look the same for a white image.
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