Bright Dot Defects; Black Dot Defects; Proximity Of Pixel Defects; Pixel Defect Tolerances - Philips 190S6FGT/00 User Manual

User Manual 190S6FGT

13.1.3 BRIGHT DOT DEFECTS

Bright dot defects appear as pixels or sub pixels that are always lit or
'on'. That is, a bright dot is a sub-pixel that stands out on the screen when
the monitor displays a dark pattern.
There are the types of bright dot defects:
1 One lit red, green or blue sub pixel.
2 Two adjacent lit sub pixels:
- Red + Blue = Purple
- Red + Green = Yellow
- Green + Blue = Cyan (Light Blue)
3 Three adjacent lit sub pixels (one white pixel).
Note:
A red or blue bright dot while a green bright dot is 30 percent brighter
than neighboring dots.

13.1.4 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:
1 One dark sub pixel.
2 Two or three adjacent dark sub pixels.

13.1.5 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.

13.1.6 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 sub pixel defects exceeding the tolerances listed in
the following tables.
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