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7. Customer care and
warranty
7.1 Philips' Flat 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 or replaced under warranty.
This notice explains the different types
of pixel defects and defines acceptable
defect levels for each type. In order 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 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'. 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.
One lit red, green or blue sub pixel.
Pixels
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