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14.2. LCD TV pixel faults
Despite the state-of-the-art 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 reso-
lution of 1920 x 1080 (MD 31503
/ MD 31504) / 1366 x 768 pixels,
which are each made up of three
sub-pixels (red, green, blue), there
are a total of approx. 6.2 (MD
31503 / MD 31504) / 3.1 million
control elements in use. Occasional-
ly pixels or individual sub-pixels can
fail or become incorrectly controlled because of this very high number of transistors
and the extremely complex manufacturing process used in this context.
Pixel fault
class
0
0
I
1
II
2
III
5
IV
50
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 (pixel fault
class).
Defect type 1
Defect type 2
Continuously
Continuously
lit pixel
0
1
2
15
150
5 Pixel
Sub-Pixel
black pixel
0
2
1
0
5
5-n*
0
50
50-n*
0
500
500-n*
0
Rows
Pixel
blue
green
red
Defect type 3
Defective sub-pixel
lit
black
0
1
3
5
0
2xn*
10
0
2xn*
100
0
2xn*
1000
EN
73
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