Customer Care And Warranty; Philips' Panel Monitors Pixel Defect Policy - Philips EVNIA 32M2C5500W User Manual

9. Customer care and
warranty
9.1 Philips' Panel Monitors Pixel
Defect Policy
Philips strives to deliver the highest
quality products. We use some of the
industry's most advanced manufacturing
processes and practice stringent quality
control. However, pixel or sub-pixel
defects on the TFT Monitor panels used
in flat panel monitors are sometimes
unavoidable. No manufacturer can
guarantee that all panels will be free
from pixel defects, but Philips guarantees
that any monitor with an unacceptable
number of defects will be repaired
and/or replaced under warranty. This
notice explains the different types of
pixel defects and defines acceptable
defect levels for each type. To qualify
for repair or replacement under
warranty, the number of pixel defects
on a TFT Monitor panel must exceed
these acceptable levels. For example,
no more than 0.0004% of the sub-
pixels on a monitor may be defective.
Furthermore, Philips sets even higher
quality standards for certain types or
combinations of pixel defects that are
more noticeable than others. This policy
is valid worldwide.
Sub pixels
Pixels and Sub pixels
A pixel, or picture element, is composed
of three sub-pixels in the primary colors
of red, green, and blue. Many pixels
together form an image. When all the
sub-pixels of a pixel are lit, the three
colored sub-pixels together appear as
a single white pixel. When all are dark,
the three colored sub-pixels together
appear as a single black pixel. Other
combinations of lit and dark sub-pixels
appear as single pixels of other colors.
Types of Pixel Defects
Pixel and sub-pixel defects appear on
the screen in different ways. There are
two categories of pixel defects and
several types of sub-pixel defects within
each category.
Bright Dot Defects
Bright dot defects appear as pixels or
sub-pixels that are always lit or 'on'.
Meaning, a bright dot is a sub-pixel
that stands out on the screen when the
monitor displays a dark pattern. There
are three types of bright dot defects:
One lit red, green, or blue sub-pixel.
One lit red, green or blue sub pixel.
Pixels
Two adjacent lit sub-pixels:
- Red + Blue = Purple
- Red + Green = Yellow
- Green + Blue = Cyan (Light Blue)
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