winsonic MFC1045S-XN40C, User Manual, Page: 19 / 30

Panel Specification
Note (4) Definition of Luminance of White (L
C
):
Measure the luminance of gray level 255 at center point and 5 points
L
C
= L (5), where L (X) is corresponding to the luminance of the point X at the figure in Note (7).
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
)
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)
Note (6) Measurement Setup:
The LCD assembly should be stabilized at given temperature for 30 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 30 minutes in a windless room.
Light Shield Room
(Ambient Luminance < 2 lux)
Center of the Screen
LCD Panel
LCD
500 mm
Field of View = 2º
Photometer
(TOPCON BM-5A)