Notes On Ergonomic Colour Adjustment - Fujitsu Siemens Computers 21P4 Owner's Manual

Locking the OSD menu
The OSD menu can be locked to prevent accidental or unauthorised changes to the monitor
settings.

Notes on ergonomic colour adjustment

If you select colours for the display in your application programmes, take note of the information
below.
The primary colours blue and red on a dark background do not produce the minimum required
contrast of 3:1 and are therefore not suitable for continuous text and data entry.
When using several colours for characters and background and giving the primary colours full
modulation, you can obtain very suitable colour combinations (see the following table):
Background
black
black
white +
purple +
blue –
cyan +
green +
yellow +
red –
+ Colour combination very suitable; light background colours are only suitable for devices which
are operated with a refresh rate of at least 75 Hz.
– Colour combination not suitable because colour locations are too close together, thin
characters are not identifiable or rigorous focusing is demanded of the human eye.
A26361-K886-Z100-1-5E19
Ê Press MENU button for at least 10 seconds.
The OSD menu is locked.
Please proceed in the same manner to release the locked OSD
menu again.
Characters
white purple blue
+ + –
+ +
+ –
+ –
– – +
– – +
– + +
+ – –
Colour monitor 21P4
cyan green yellow
+ + +
– – –
– – –
+ – +
– –
– –
– –
– – +
red
–
+
–
–
–
–
+
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