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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.
Pixel Defect Tolerances
In order to qualify for repair or
replacement due to pixel defects during
the warranty period, a TFT Monitor
panel in a Philips flat panel monitor
must have pixel or sub pixel defects
exceeding the tolerances listed in the
following tables.
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.
