Color Temperature - Hitachi LP-WU9750B User Manual

OSD Menu description

Color Temperature

You can choose from
Color temperature refers to the change in light color under different energies that is perceived by the
naked eye. The change of color temperature from low to high for visible light goes from orange red →
white → blue
The projector's default color temperature is set at NATIVE and it is suitable for most situations. As
color temperature rises, the picture will appear to be bluer; as it decreases, the picture will appear
redder. When you choose "Native", the projector will disable the white adjustment function of the
input device.
White Balance
Regardless of the change in ambient light, the human eye is equipped with an automatic adjustment
mechanism that makes a white object appears white and black object black. However, since no
machine has such an incredible innate feature, you may need to make certain adjustments to the
projector's settings when the ambient light changes so that the picture will appear closer to the actual
colors.
Offset
This refers to the control of color imbalance in the darker areas of the projected picture. It is
recommended that you use an external test picture with many areas of dark and gray colors (i.e. an
picture of 30IRE-window). If you notice minimal amount of red, green or blue in the gray areas, adjust
the offset of the corresponding color accordingly. This function will shift the entire color spectrum for
the whole picture and change its brightness.
Gain
This refers to the control of color imbalance in the brighter areas of the projected picture. It is
recommended that you use an external test picture with many areas of white (i.e. an picture of 80IRE-
window). If you notice minimal amount of red, green or blue in the gray areas, lower the gain of the
corresponding color accordingly. This function is used to increase or decrease the range of color input
for the entire picture.
Generally speaking, as gain increases, the contrast of the picture will become lower. By increasing the
offset, the picture brightness will become lower.
•
Red Offset
Press ◄►to adjust the offset of red in dark scales.
•
Green Offset
Press ◄► to adjust the offset of green in dark scales.
•
Blue Offset
Press ◄► to adjust the offset of blue in dark scales.
•
Red Gain
Press ◄► to adjust the gain of red in bright scales.
•
Green Gain
Press ◄► to adjust the gain of green in bright scales.
•
Blue Gain
Press ◄► to adjust the gain of blue in bright scales.
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5400K, 6500K, 7500K, 9300K and Native.
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