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ADJUSTMENTS
3 Color adjustment (White balance)
(a) Effects of brightness
¶ Take note of dark images which have some high luminance parts.
¶ The reflected light overlap with surrounding dark parts at the face of the CRT and surface of projection lens,
and luminance and hue become different from the adjoining screen.
(b) Differences caused by visual points
¶ Although the joined parts of multiple screens are improved by peripheral light amount correction, the image
may not be natural at some points. (Adjustment of vertical direction using the installation table)
¶ Due to the layout of the red, green, and blue CRTs, when the screens are viewed diagonally, they may appear
reddish or bluish (Color shift).
¶ For multiple screens, as the angles of the left and right screens are different to a viewer, they may appear to
have different colors.
Before adjustments, check the user's visual point, and adjust at that point.
(c)
¶ Because the white balance is adjusted using high light (drive) and low light (cutoff), the red, green, and blue
may not be balanced at the mid-range of luminance. In this case, adjust R, G, B, LOW LIGHT or R, G, B, HIGH
LIGHT at the mid-range, and make the balance of these colors consistent from low luminance to high lumi-
nance.