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Philips Pixel Defect Policy

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 LCD 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 LCD panel must exceed these acceptable levels. For example, no more than
0.0004% of the sub pixels on a 19" XGA 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.
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 three types of bright dot defects: