ESSENTIAL INFORMATION
E-2
• All displays posses a certain viewing angle within which the images can
be seen properly. If the viewer is outside the specified angle the images
may be seen with their colors inverted or with different tones from the
original ones, or it may be that no colors are seen, etc. The viewing
angle can be slightly adjusted by regulating the contrast on the display.
The figure above shows the direction of the angles in relation to the
viewing point. The table gives the value of the viewing angles depend-
ing on the type of display.
This feature means a difference in viewing (albeit with the same contrast
and temperature levels) when:
• The viewer is taller than the person setting the contrast.
• Viewers find themselves at different distances from the VT.
• Two identical displays may have slightly different brightness levels and
color tones.
Type of display
Direction (Hour)
12 - a 6 - b 9 - g
3 - d
STN 30 degrees 60 degrees 60 degrees 60 degrees
TFT 80 degrees 80 degrees 70 degrees 70 degrees
12 o’clock
a
b
6 o’clock
3 o’clock
d
g
9 o’clock
Viewer
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