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One lit red, green or blue sub
pixel
Two adjacent lit sub pixels:
- Red + Blue = Purple
- Red + Green = Yellow
- Green + Blue = Cyan (Light
Blue)
Three adjacent lit sub pixels
(one white pixel)
A red or blue
bright dot
must be more than 50 percent brighter than neighboring dots
while a green bright dot is 30 percent brighter than neighboring dots.
Black Dot Defects Black dot defects appear as pixels or sub pixels that are always dark or 'off'.
That is, a
dark dot
is a sub-pixel that stands out on the screen when the monitor displays a light
pattern. These are the types of black dot defects:
One dark sub pixel Two or three adjacent dark sub pixels
Proximity of Pixel Defects
Because pixel and sub pixels defects of the same type that are near to one another may be more
noticeable, Philips also specifies tolerances for the proximity of pixel defects.
BRIGHT DOT DEFECTS ACCEPTABLE LEVEL
MODEL
9FF2 series
1 lit subpixel 2
2 adjacent lit subpixels 1
3 adjacent lit subpixels (one white pixel) 0
Total bright dot defects of all types 2
BLACK DOT DEFECTS ACCEPTABLE LEVEL
MODEL
9FF2 series
1 dark subpixel 3
2 adjacent dark subpixels 1
3 adjacent dark subpixels 0