REV 1.0
33
Color
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3.4.7
SENSOR
While the brightness of each light source varies
individually as time passes, the sensor function
automatically controls the luminance to uniform in a
display wall.
•
Set after all color balance is adjusted in a display wall.
Initial brightness data obtaining
SYSTEM SETTING > MAINTENANCE > SENSOR > SET
INITIAL SENSOR DATA
1
Make sure BOOST (page 36) is OFF.
2
Select SET INITIAL SENSOR DATA > SET OK? > YES on
all monitors in the display wall. It measures the
current light source brightness to be saved as the
initial value.
•
It doesn’t measure in 5 minutes after monitor
turning-on in order to wait for the stability of light
source brightness.
•
If you have a possibility to change the mode in LED
POWER during the operation, obtain the initial
brightness data in each mode.
Enabling the sensor function
Select SYSTEM SETTING > MAINTENANCE > SENSOR >
SENSOR FEEDBACK > RUN. The sensor function will be
enabled.
Action of the sensor function
By communication between the monitors, it priodically
measures the brightness of the light sources and
compares them among the monitors to automatically
correct the color balance for maintaining the
uniformity.
•
The color balance values are under automatic control
and cannot be adjusted manually.
•
Even if the CSC has been adjusted over the range or
too low, the sensor function finds the maximum
luminance possible so that it always optimizes the
brightness in the range.
•
A monitor which gets dark to the preset limit will be
separated from the brightness control group to avoid
the situation that the dark monitor makes the entire
display wall too dark. The initial setting of the limit is
45% of the initial brightness.
•
This limit can be changed in THRESHOLD FOR
FEEDBACK menu. Lower setting keeps the brightness
uniformity for a long time while the entire display
wall will be dark. You need to be careful if you set it
higher which loses the uniformity in an early stage.
Available maximum value to be set is 50% of the
initial brightness.
•
The initial and current values of the light source
brightness are shown in advanced information on
screen (page 10) and Information menu in Wallaby
(page 59).
Re-adjustment after sensor function enabling
If you need to re-adjust the color balance after the
sensor function has been operated for a certain time,
which color was adjusted uniformly, it can be
re-adjusted in the following ways.
To tweak only one or a few monitors in a display
wall
1
Set SENSOR FEEDBACK > STOP on all monitors in the
display wall. The automatic controlling stops and it
holds the current color balance.
•
The displayed values on CSC menus are
compensated values. It may limit the adjustment
range.
2
Re-adjust the color balance.
3
Restore SENSOR FEEDBACK setting to RUN.
To re-adjust all or most of the monitors in a display
wall
1
Set SENSOR FEEDBACK > OFF on all monitors. The
CSC values go back to the original adjustment.
2
Re-adjust the color balance.
3
Select SET INITIAL SENSOR DATA > SET OK? > YES in
all monitors to save the new initial values.
4
Set SENSOR FEEDBACK RUN.
