Philips 278C4QHSN/27 Proximity of Pixel Defects, For the proximity of pixel defects, Tables

8. Customer care and warranty

Note

Proximity of Pixel Defects

A red or blue bright dot must be more than 50

Because pixel and sub pixels defects of the

percent brighter than neighboring dots while

same type that are near to one another may be

a green bright dot is 30 percent brighter than

more noticeable, Philips also specifies tolerances

neighboring dots.

for the proximity of pixel defects.

Black Dot Defects

Black dot defects appear as pixels or sub pixels

that are always dark or 'off'.That is, a dark dot is

a sub-pixel that stands out on the screen when

the monitor displays a light pattern.These are

the types of black dot defects.

Pixel Defect Tolerances

In order to qualify for repair or replacement

due to pixel defects during the warranty period,

a TFT Monitor panel in a Philips flat panel

monitor must have pixel or sub pixel defects

exceeding the tolerances listed in the following

tables.

BRIGHT DOT DEFECTS

ACCEPTABLE LEVEL

1 lit subpixel

3

2 adjacent lit subpixels

1

3 adjacent lit subpixels (one white pixel)

0

Distance between two bright dot defects*

>15mm

Total bright dot defects of all types

3

BLACK DOT DEFECTS

ACCEPTABLE LEVEL

1 dark subpixel

5 or fewer

2 adjacent dark subpixels

2 or fewer

3 adjacent dark subpixels

0

Distance between two black dot defects*

>15mm

Total black dot defects of all types

5 or fewer

TOTAL DOT DEFECTS

ACCEPTABLE LEVEL

Total bright or black dot defects of all types

5 or fewer