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Note (4)
Measurement Setup:
The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 20 minutes in a windless room.
Note (5) Definition of White Uniformity (δW):
Measure the luminance of gray level 255 at 5 points
δW = Minimum [L (1), L (2), L (3), L (4), L (5)] / Maximum [L (1), L (2), L (3), L (4), L (5)] * 100%
Panel Specification
LCD Module
LCD Panel
Center of the Screen
Field of View = 2º
500 mm
Horizontal Line Number
0
256
0
192
1
384
576
3
767
Horizontal Line Number [pixel]
Photometer
(TOPCON BM-5A)
512
768
2
5
4
Active area
Light Shield Room
(Ambient Luminance < 2 lux)
1023
: test point
X
X=1 to 5
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