Philips 190VW8FB/93, Service Manual

Page: 11 / 72

190VW8 LCD
Definition of pixel defects
11
3. 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.
Perfect Panel - ISO 13406-2 Class II compliant do-defect-
free-display.
BRIGHT DOT DEFECTS ACCEPTABLE LEVEL
MODEL 190VW8
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* >15mm
Total bright dot defects of all types 3 or fewer
BLACK DOT DEFECTS ACCEPTABLE LEVEL
MODEL 190VW8
1 dark subpixel 5 or fewer
2 adjacent dark subpixels 2 or fewer
3 adjacent dark subpixels 0
Distance between two black dot defects* >15mm
Total black dot defects of all types 5 or fewer
TOTAL DOT DEFECTS ACCEPTABLE LEVEL
MODEL 190VW8
Total bright or black dot defects of all types 5 or fewer
Note:
* 1 or 2 adjacent sub pixel defects = 1 dot defect
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