Philips 170W4P7499 - Manual (Page 51)

One lit red, green or blue
subpixel
Two adjacent lit subpixels:
- Red + Blue = Purple
- Red + Green = Yellow
- Green + Blue = Cyan (Light Blue)
Three adjacent lit subpixels (one
white pixel)
Black Dot Defects Black dot defects appear as pixels or subpixels that are always dark or "off". These are
the types of black dot defects:
One dark subpixel Two or three adjacent dark subpixels
Proximity of Pixel Defects
Because pixel and subpixels defects of the same type that are nearby 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 subpixel defects exceeding the tolerances listed in
the following tables.
BRIGHT DOT DEFECTS ACCEPTABLE LEVEL
MODEL 170W4
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
Bright dot defects within 20 mm circle -
Philips Pixel Defect Policy
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