Manual Philips 272S4 (page 43 of 55) (English)

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9. Customer care and warranty

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.

Two adjacent lit sub pixels:

- Red + Blue = Purple

- Red + Green = Yellow

- Green + Blue = Cyan (Light Blue)

Three adjacent lit sub pixels (one white pixel).

9. Customer care and

warranty

9.1 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

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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

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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.

subpixel

pixel

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

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Others manual(s) of Philips 272S4

Philips 272S4 User Manual - German - 55 pages

Philips 272S4 User Manual - Dutch - 55 pages

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Philips 272S4 Manual

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