Xerox XM7-19w User Manual - Visual Inspection
Technical Information
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Xerox© LCD Monitor User’s Manual
Permanently unlit or lit pixels
The standard of production techniques today cannot guarantee
an absolutely fault free LCD display. A few isolated permanently
lit or unlit pixels may be present. The maximum permitted
number of pixel faults is stipulated in the stringent international
standard ISO 13406-2 (Class II).
Example:
A 17” flat-screen monitor with a resolution of 1280 x 1024
has 1280 x 1024 = 1310720 pixels. Each pixel consists of
three subpixels (red, green and blue), so there are about 4
million dots in total.
According to ISO 13406-2 (Class II), a maximum of 6 pixels and
7 subpixels may be defective, i. e. a total of 25 faulted dots. This
corresponds to approx. 0.002 % of the entire screen surface.
Visual Inspection
This monitor conforms to the VESA DDC (Display Data
Channel) standard, which means that when it is used with a
DDC compatible video card, the monitor is easier to set up.
With VESA DDC 1/2B, when the monitor is turned on, it will
automatically notify a windows 9X/2000/XP host computer of its
scanning frequencies, capabilities and characteristics. Windows
9X/2000/XP will automatically recognize the presence of the
monitor and select the appropriate display resolution.