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11.1. Pixel faults in TFT monitors
Despite the state-of-the-art production
methods, in rare cases there may be individ-
ual or multiple pixel drop-outs (dead pixels)
due to the highly complex technology.
For active matrix TFTs with a resolution of
1920 x 1080 pixels, which are each made up
of three sub-pixels (red, green, blue), there
are a total of approx. 6.2 million control el-
ements in use. Occasionally pixels or individ-
ual sub-pixels can fail or become incorrectly
controlled because of this very high num-
ber of transistors and the extremely complex
manufacturing process used in this context.
Pixel defect
class
0
I
II
III
IV
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 defect
class). Pixel defects up to the specified maximum number are not covered by the
warranty.
26
Defect type
Defect type
1
Continuous-
Continuous-
ly
lit pixel
black pixel
0
1
2
5
50
Sub-Pixel
2
Defective sub-pixel
ly
lit
0
0
2
1
1
0
5
2
5-n*
50
15
50-n*
0
500
150
500-n*
0
5 Pixel
red
Defect type 3
black
0
1
3
5
0
2 x n*
10
0
2 x n*
100
0
2 x n*
1000
Rows
Pixel
blue
green
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