Philips V Series Podręcznik użytkownika - Strona 27

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Philips V Series Podręcznik użytkownika

7.Customer care and warranty

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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