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Three adjacent lit sub pixels (one white
pixel).
Note
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.
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.
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