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190CW7 LCD
GENERAL PRODUCT SPECIFICATION(Continued)
4.3 Image size
Actual display size 410.4 x 256.5mm
4.4 Brightness uniformity
Set contrast at 100% and turn the brightness to get average above 300 nits
at centre of the screen.
Apply the Fig 1, it should comply with the following formula:
B_min
X 100% >75%
B_max
Where B_max =Maximum brightness
B_min = Minimum brightness
4.5 Check Cross talk (S)
Apply Pattern 2. Set contrast and brightness at 100 %.
Measure YA. Then output Pattern 3 and measure YB.
the cross talk value :
ABS( YA - YB )
¾¾¾¾¾¾¾¾¾ X 100% < 1.5 %
YA
4.6 White color adjustment
There are three factory preset white color 9300K, 6500K, sRGB.
Apply full white 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
BRAND : PHILIPS
19 inch TFT WXGA LCD Monitor
TYPE : 190CW7CS/00
8639 000 17256
2006-06-22
2006-06-22
590
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