AOC International (Europe) B.V.
Prins Bernhardplein 200 / 6th floor, Amsterdam, The Netherlands
Tel: +31 (0)20 504 6962 • Fax: +31 (0)20 5046933
July 25th, 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
Classe 1 1 1
2
1
0
+
+
+
1
3
5
AOC International (Europe) B.V.
72