Philips 190TW8FB/05 User Manual page 16

Black Dot Defects
is, a dark dot
These are the types of black dot defects:
One dark sub pixel
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
MODEL
1 lit subpixel
2 adjacent lit subpixels
3 adjacent lit subpixels (one white pixel)
Distance between two bright dot defects*
Total bright dot defects of all types
BLACK DOT DEFECTS
MODEL
1 dark subpixel
2 adjacent dark subpixels
3 adjacent dark subpixels
Distance between two black dot defects*
Total black dot defects of all types
TOTAL DOT DEFECTS
MODEL
Total bright or black dot defects of all types
* 1 or 2 adjacent sub pixel defects = 1 dot defect
Your Philips monitor is ISO13406-2 Compliant
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Black dot defects appear as pixels or sub pixels that are always dark or 'off'. That
is a sub-pixel that stands out on the screen when the monitor displays a light pattern.
Two or three adjacent dark sub pixels
ACCEPTABLE LEVEL
ACCEPTABLE LEVEL
ACCEPTABLE LEVEL
190TW8
3
1
0
15 mm
3
190TW8
5
2
0
15 mm
5
190TW8
5