Issued Date: September 18, 2003
Model No.: V270W -
L03
Approval
Note (4) Definition of Gray to Gray Switching Time:
Optical
Response
100%
90%
10%
0%
Gray to gray
switching time
Time
Time
Gray to gray
switching time
Drive signal
of LCD Panel
The driving signal means the signal of gray level 0,63,127,191,255.
Note (5) 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 (6) 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
)
Gray 128
(D,W)
(0, 0)
Y
A, L
(D/8,W/2)
Y
A, D
(D/2,7W/8)
Y
A, R
(7D/8,W/2)
Y
A, U
(D/2,W/8)
Active Area
Y
B, U
(D/2,W/8)
(0, 0)
Gray 0
Gray 0
(D/4,W/4)
(3D/4,3W/4)
Y
B, R
(7D/8,W/2)
Gray 128
Y
B, L
(D/8,W/2)
Y
B, D
(D/2,7W/8)
Active Area
(D,W)
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The information described in this technical specification is tentative and it is possible to be changed without prior
notice. Please contact CMO ’s representative while your product design is based on this specification.
Version 2.0