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EN
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11.2. LCD TV pixel faults
Despite the most modern produc-
tion methods, in rare cases there
may be individual or multiple pixel
drop-outs (dead pixels) due to the
highly complex technology.
For active matrix TFTs with a resolu-
tion of
1920 x 1080 pixels
, which
are each made up of three sub-pix-
els (red, green, blue), there are a to-
tal of
approx. 6.2 million
control
elements in use. Occasionally one
or more pixels can fail or become
incorrectly controlled because of
this very high number of transistors
and the associated extremely complex manufacturing processes used.
Pixel fault
class
Defect type 1
Continuously
lit pixel
Defect type 2
Continuously
black pixel
Defect type 3
Defective sub-pixel
lit
black
0
0
0
0
0
I
1
1
2
1
0
1
3
5
II
2
2
5
5-n*
0
0
2xn*
10
III
5
15
50
50-n*
0
0
2xn*
100
IV
50
150
500
500-n*
0
0
2xn*
1000
n*=1.5
The permitted number of defects for every type named above in each class of pixel
defect refers to one million pixels and must be converted accordingly to match the
physical resolution of the display.
Your device complies with the European ISO 9241-307 Class II standard (class of pix-
el defect).
5 Pixel
Zeilen
Sub-Pixel
Pixel
blau
grün
rot
5 P
ix
e
l
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