Proximity Of Pixel Defects; Pixel Defect Tolerances - Philips 180B2W7499 User Manual

Philips Pixel Defect Policy
One lit red, green or blue
subpixel
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

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
MODEL
1 lit subpixel
2 adjacent lit
subpixels
3 adjacent lit
subpixels (one
white pixel)
file:///D|/Grace/K1/english/180b2sw/product/pixel.htm (2 of 4) [6/2/2002 5:24:33 PM]
Two adjacent lit subpixels:
- Red + Blue = Purple
- Red + Green = Yellow
- Green + Blue = Cyan (Light Blue)
150P2 150B2
0 0
0 0
0 0
Two or three adjacent dark subpixels
ACCEPTABLE LEVEL
150S2 170B2
8 or fewer 4 or fewer
3 or fewer 2 or fewer
1 or fewer 0
Three adjacent lit subpixels (one
white pixel)
170S2 180P2/180B2
8 or fewer 3 or fewer
2 or fewer 2 or fewer
0 0