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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