Medion Akoya E7220, Instruction Manual

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Pixel structure
Types of Pixel Failures:

Type 1:
A constantly lit pixel (a bright, white spot), even though it is not addressed. A white
pixel is caused when all three sub-pixel are lit.

Type 2:
A pixel that does not light up (dark, black spot), although it is addressed

Type 3:
Abnormal or defective red, green or blue sub-pixels.
(E.g. constantly lit with half the brightness, one colour is not shining, blinking or
flickering, but not belonging to Type 1 or 2 Pixel Failures)
In addition: A cluster of type 3 (= 2 or more defective sub-pixels in an array of 5 x 5 pixel).
A cluster is an array of 5 x 5 pixel (15 x 5 sub-pixel).
ISO 13406-2, Class II
Resolution Type 1 Type 2 Type 3 Cluster
Type 1,
Type 2 Cluster
Type 3
1024 x 768 2 2 4 0 2
1280 x 854 3 3 6 0 3
1280 x 1024 3 3 7 0 3
1366 x 768 3 3 7 0 3
1400 x 1050 3 3 8 0 3
Example:
A 17” (44 cm) - SXGA-display consists of 1280 horizontal and 1024 vertical picture dots
(pixel), which amounts to a total of 1,31 million pixels. Based on one million pixels this
translates into a factor of about 1.31.
Class II type failure consequently allows for three defects each of type 1 and type 2 and 7
defects of type 3 and 3 cluster of type 3.
These cases are normally not covered by warranty.
If the number of failures exceeds the figures of any category mentioned above then this
may be covered by the warranty.
Rows
Blue
Green
Red