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Philips Pixel Defect Policy
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.
Pixel Defect Tolerances
In order to qualify for repair or replacement due to pixel defects during the warranty period, a TFT LCD panel in a Philips flat panel monitor must
have pixel or sub pixel defects exceeding the tolerances listed in the following tables.
BRIGHT DOT DEFECTS ACCEPTABLE LEVEL
MODEL
170C7
1 lit subpixel 3 or fewer
2 adjacent lit subpixels 1 or fewer
3 adjacent lit subpixels (one white pixel) 0
Distance between two bright dot defects* 15 mm or more
Total bright dot defects of all types 3 or fewer
BLACK DOT DEFECTS ACCEPTABLE LEVEL
MODEL
170C7
1 dark subpixel 4 or fewer
2 adjacent dark subpixels 2 or fewer
file:///D|/EDFU/LCD/170C7/manual/english/170c7/product/pixel.htm (2 of 3)2006-07-28 11:03:09 AM
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