Philips 231E1HSB/00 Service Manual page 64

64
231E1 LCD
8.6 Jitter
No jitter visible in each condition. In case of problem a limit sample has to be defined.
8.7 Missing Pixels / missing subpixel
BRIGHT DOT DEFECTS
MODEL
1 lit subpixel
2 adjacent lit subpixels
3 adjacent lit subpixels (one white pixel)
Distance between two bright dot defects*
Bright dot defects within 20 mm circle
Total bright dot defects of all types
BRIGHT DOT DEFECTS
MODEL
1 dark subpixel
2 adjacent dark subpixels
3 adjacent dark subpixels (one white
pixel)
Distance between two dark dot defects*
Black dot defects within 20 mm circle
Total black dot defects of all types
TOTAL DOT DEFECTS
MODEL
Total bright or black dot defects of all
types
8.8 Newton Ring
No Newton Rings visible.
8.9 Luminance Output
8.9.1 Luminance Output
Test resolution:
Test condition:
8.9.2 Brightness
To follow Panel specification. sRGB = 80 ± 10 nits.
8.9.3 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
B_min = Minimum brightness
(PM)
ACCEPTABLE LEVEL
231E
3
1
0
15mm
0
3
ACCEPTABLE LEVEL
231E
5
2
1
15mm
1
5
ACCEPTABLE LEVEL
231E
5
(EE)
1920 x 1080 @60Hz
video input (RGB) = maximum white
B_min
X 100%>75%
B_max