Meridian 2 103
4.2 Brightness
Follow Panel specification.
4.3 Image size
Actual display size: refer to
2.1 LCD panel spec.
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_max - 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)
X 100% < 1.5 %
YA
4.6 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 specification
CIE coordinates
(x,y)
9300K
x = 0.283 ± 0.02 y = 0.297 ± 0.02
6500K/sRGB
x = 0.313 ± 0.02 y = 0.329 ± 0.02
sRGB
x = 0.313 ± 0.02 y = 0.329 ± 0.02
Production alignment specification
CIE coordinates
(x,y)
9300K
x = 0.283 ± 0.005 y = 0.297 ± 0.005
6500K/sRGB
x = 0.313 ± 0.005 y = 0.329 ± 0.005
sRGB
x = 0.313 ± 0.005 y = 0.329 ± 0.005
Quality Inspection specification:
CIE coordinates
(x,y)
9300K
x = 0.283 ± 0.015 y = 0.297 ± 0.015
6500K/sRGB
x = 0.313 ± 0.015 y = 0.329 ± 0.015
sRGB
x = 0.313 ± 0.015 y = 0.329 ± 0.015
