Akai LCT3285TAJ, Service Manual

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Note (6) Measurement Setup:
The LCD module should be stabilized at given temperature for 1 hour to avoid abrupt temperature
change during measuring. In order to stabilize the luminance, the measurement should be
executed after lighting Backlight for 1 hour in a windless room.
Note (7) Definition of White Variation (
δ
W):
Measure the luminance of gray level 255 at 5 points
δ
W = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)]
D
W
Active Area
V
er
ti
c
al
Li
ne
Horizontal Line
: Test Point
X=1 to 5
5
1 2
3 4
D/4 D/2 3D/4
W/4
W/2
3W/4
X
LCD Module
LCD Panel
Center of the Screen
Display Color Analyzer
(Minolta CA210)
Light Shield Room
(Ambient Luminance < 2 lux)
101／129