Philips Pixel Defect Policy
Philips Pixel Defect Policy
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Philips' LCD Panel Pixel Defect Policy
Philips strives to deliver the highest quality products. We use some of the industry's most advanced
manufacturing processes and practise 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 32" 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
subpixels 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.
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