Philips 220WS8FB/00 User Manual page 35

One lit red, green or blue
sub pixel
A red or blue bright dot must be more than 50 percent brighter than neighboring
dots while a green bright dot is 30 percent brighter than neighboring dots.
Black Dot Defects Black dot defects appear as pixels or sub pixels that are always dark or
'off'. That is, a dark dot is a sub-pixel that stands out on the screen when the monitor
displays a light pattern. These are the types of black dot defects:
One dark sub pixel
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.
BRIGHT DOT DEFECTS
MODEL
1 lit subpixel
2 adjacent lit subpixels
3 adjacent lit subpixels (one white pixel)
Distance between two bright dot defects*
Total bright dot defects of all types
Two adjacent lit sub pixels:
- Red + Blue = Purple
- Red + Green = Yellow
- Green + Blue = Cyan (Light Blue)
Two or three adjacent dark sub pixels
Three adjacent lit sub
pixels (one white pixel)
ACCEPTABLE LEVEL
220WS8
3
1
0
15mm
3