Image Size; Brightness Uniformity; Check Cross Talk (S); Color Temperature Adjustment - Philips 192E2SB2/10 Service Manual

68 192E2SB2 LCD
4.3

Image size

Actual display size
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:
Where B_max = Maximum 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 :
4.6

Color temperature 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:
CIE coordinates
9300K
6500K/sRGB
CIE coordinates
9300K
6500K/sRGB
CIE coordinates
9300K
6500K/sRGB
2010/08/19
General Product Specification
337.920 mm x 270.336 mm
( B_max - B_min )
B_max
B_min = Minimum brightness
ABS ( YA - YB )
Product specification
x = 0.283 ± 0.02
y = 0.297 ± 0.02
x = 0.313 ± 0.02
y = 0.329 ± 0.02
Production alignment spec
x = 0.283 ± 0.006
y = 0.297 ± 0.006
x = 0.313 ± 0.006
y = 0.329 ± 0.006
Quality Inspection specification
x = 0.283 ± 0.015
y = 0.297 ± 0.015
x = 0.313 ± 0.015
y = 0.329 ± 0.015
192E2SB2
PHILIPS
X 100% > 75%
X 100% < 1.5 %
YA
(x,y)
PerfecTune I
PerfecTune I
(x,y)
PerfecTune I
PerfecTune I
(x,y)
18.5" Wide WXGA LCD Monitor
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