Philips 200WS8FB/00, Service Manual

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Spec : =< 1.33 (In all ranges)
8.11 Contrast ratio
The contrast ration can be calculated by following expression.
Contrast Ratio (CR) = L255 / L0
L255 : Luminance of gray level 255
L0 : Luminance of gray level 0
Typical value: 1000:1
8.12 White color adjustment
There are three factory preset white color 9300K, 6500K, sRGB.
Apply full gray 64 pattern, with brightness in 100 % position and the contrast control at 50 % position.
The 1931 CIE Chromaticity (color triangle) diagram (x,y) coordinate for the screen center should be:
Product spec.
9300K CIE coordinates X = 0.283 ± 0.02
Y = 0.297 ± 0.02
6500K/ sRGB CIE coordinates X = 0.313 ± 0.02
Y = 0.329 ± 0.02
sRGB CIE coordinates X = 0.313 ± 0.02
Y = 0.329 ± 0.02
Production alignment spec.
9300K CIE coordinates
X = 0.283 ± 0.005
Y = 0.297 ± 0.005
6500K/ sRGB CIE coordinates X = 0.313 ± 0.005
Y = 0.329 ± 0.005
sRGB CIE coordinates X = 0.313 ± 0.005
Y = 0.329 ± 0.005
Quality Inspection spec.
9300K CIE coordinates
X = 0.283 ± 0.015
Y = 0.297 ± 0.015
6500K/ sRGB CIE coordinates X = 0.313 ± 0.015
Y = 0.329 ± 0.015
77 200WS8 LCD
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10%
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90%
10%
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90%