HP Vectra XU 6/XXX, Руководство пользователя

Страница: 30 / 168

2 Using Your PC
Working in Comfort
18 English
Installing Your Display
Most HP displays come with a tilt and swivel feature that makes it easy
to adjust the screen position. If your display does not have this feature,
consider acquiring an accessory to provide this capability. The
optimum distance between the eyes and the screen depends on the
size of the displayed characters.
•
Optimum readability is generally considered to be 21 minutes of arc.
This corresponds to a character size of 3.7 mm (0.15 in) at a viewing
distance of 60 cm (24 in).
•
If your eyes are closer to the screen than 50 cm (20 in) undue stress
may occur: Most people prefer a viewing distance of approximately
60 cm (24 in).
•
The maximum viewing distance is usually limited by the character
size and the available space on the desk top.
The top of your display screen should be at or slightly below eye level.
This will keep you from looking down more than 15 to 20 degrees to
see the center of the screen. You should not have to look down more
than 60 degrees for normal work tasks, such as typing or reading.
Ideally the screen should be positioned perpendicular to your line of
sight. In case of undesirable reflections, tilting the screen forward
slightly usually solves the problem. However, if this is not sufficient, it
may be necessary to change the position of the display on the desk, or
change the location of the desk.
If this still does not correct the problem, try a good quality anti-glare
filter, or a screen hood.
Keep the contrast and brightness adjusted to the level that is most
comfortable for you. High contrast and low brightness is usually the
preferable combination. Since build up of screen dirt is gradual and
therefore often overlooked, don't forget to clean the screen on a
regular basis.