Filter
Top Products
User Manual BDL3215E / BDL4225E
42
Dark Dot Defects
Black dot defects appear as pixels or sub-pixels that are always dark or “off”. These are the examples of black dot defects:
One dark dot
Two adjacent dark dots=
1 pair of dark dots
Two dark dots, specifica-
tions defines the minimum
distance between dark dots
Proximity of Pixel Defects
Because pixel and sub-pixels defects of the same type that are nearby one another may be more noticeable, Philips also specifies tolerances
for the proximity of pixel defects. In the table below you can find specifications about:
Allowed amount of adjacent dark dots = (adjacent dark dots =1 pair of dark dots)v
Minimum distance between dark dotsv
Total no. of all defective dotsv
Pixel Defect Tolerances
In order to qualify for repair due to pixel defects during the warranty period, a PDP / TFT panel in a Philips Plasma / LCD- display must have
pixel or sub-pixel defects exceeding the tolerances listed in the following table.
BRIGHT DOT EFFECT ACCEPTABLE LEVEL
MODEL BDL3215E BDL4225E
1 lit sub pixel 3 1
2 adjacent lit sub pixels 1 1
3 adjacent lit sub pixels (one white pixel) 0 0
50% ~ Less Dot (Weak Dot) 7 7
Distance between two bright dot defects*
5mm 5mm
Total bright dot defects of all types 7 7
BLACK DOT EFFECT ACCEPTABLE LEVEL
1 dark sub pixel 9 8
2 adjacent dark sub pixels 3 3
3 adjacent dark sub pixels 1 1
Distance between two black dot defects* NA NA
Total black dot defects of all types 9 8
TOTAL DOT DEFECTS OF ALL TYPES 10 9
NOTE:
* 1 or 2 adjacent sub pixel defects = 1 dot defect.