Akai LCT3285TAJ, Service Manual, Page: 102 / 131

The driving signal means the signal of gray level 0, 63, 127, 191, 255.
Gray to gray average time means the average switching time of gray level 0 ,63,127,191,255 to each
other .
Note (4) Definition of Luminance of White (L
C
, L
AVE
):
Measure the luminance of gray level 255 at center point and 5 points
L
C
= L (5)
L
AVE
= [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5
L (x) is corresponding to the luminance of the point X at the figure in Note (8).
Note (5) Definition of Cross Talk (CT):
CT = | Y
B
– Y
A
| / Y
A
×
100 (%)
Where:
Y
A
= Luminance of measured location without gray level 0 pattern (cd/m
2
)
Y
B
= Luminance of measured location with gray level 0 pattern (cd/m
2
)
Active Area
Y
A, U
(D/2,W/8)
Y
A, R
(7D/8,W/2)
Y
A, D
(D/2,7W/8)
Y
A, L
(D/8,W/2)
(0, 0)
(D,W)
Gray 128
Active Area
Gray 0
(D/4,W/4)
(3D/4,3W/4)
(0, 0)
Y
B, U
(D/2,W/8)
Y
B, R
(7D/8,W/2)
Y
B, D
(D/2,7W/8)
Y
B, L
(D/8,W/2)
(D,W)
Gray 128
Gray 0
100／129