AOC U3477PQU - Manual (Page 75)

AOC International (Europe) B.V.
Prins Bernhardplein 200 / 6th floor, Amsterdam, The Netherlands
Tel: +31 (0)20 504 6962 • Fax: +31 (0)20 5046933
AOC Pixel Policy
ISO 9241-307 Class 1
July 25 th , 2013
AOC strives to deliver the highest quality products. We use some of the industry’s most advanced manufacturing
processes and practice stringent quality control. However, pixel or sub pixel defects on the TFT monitor panels used in
flat panel monitors are sometimes unavoidable. No manufacturer can guarantee that all panels will be free from pixel
defects, but AOC guarantees that any monitor with an unacceptable number of defects will be repaired or replaced
under warranty. This Pixel Policy explains the different types of pixel defects and defines acceptable defect levels for
each type. In order to qualify for repair or replacement under warranty, the number of pixel defects on a TFT monitor
panel must exceed these acceptable levels.
Pixels and Sub Pixel Definition
A pixel, or picture element, is composed of three sub pixels in the primary colors of red, green and blue. When all sub
pixels of pixel are lit, the three colored sub pixel together appear as a single white pixel. When all are dark, the three
colored sub pixels together appear as a single black pixel.
Types of Pixel Defects
• Bright Dot Defects: the monitor displays a dark pattern, sub pixels or pixels are always lit or “on”
• Black Dot Defects: the monitor displays a light pattern, sub pixels or pixels are always dark or “off”.
ISO 9241-307
Pixel Defect Class
Defect Type 1
Bright Pixel
Defect Type 2
Black Pixel
Defect Type 3
Bright Sub pixel
Defect Type 4 Black
Sub pixel
Class 1 1 1
2
1
0
+
+
+
1
3
5
AOC International (Europe) B.V.
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