Philips BDL4635E/00 Dark Dot Defects, Proximity of Pixel Defects, Pixel Defect Tolerances

User Manual BDL4635E

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=	Two	dark	dots, specifications
		defines	the	minimum distance
	1 pair of dark dots
		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)

•Minimum distance between dark dots

•Total no. of all defective dots

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	BDL4635E
1 lit sub pixel	3
2 adjacent lit sub pixels	1
3 adjacent lit sub pixels (one white	0
pixel)
50% ~ Less Dot (Weak Dot)	7
Distance between two bright dot	5mm
defects*
Total bright dot defects of all types	7
BLACK DOT EFFECT	ACCEPTABLE LEVEL
1 dark sub pixel	9
2 adjacent dark sub pixels	3
3 adjacent dark sub pixels	1
Distance between two black dot	NA
defects*
Total black dot defects of all types	9
TOTAL DOT DEFECTS OF	10
ALL TYPES
Note:

* 1 or 2 adjacent sub pixel defects = 1 dot defect

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