Submenu Anti Sticking; How To Minimize The Effect - TAMUZ LSM 124W Operation Manual

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Submenu Anti Sticking

The apparent „burning-in" of pictures, the so called image sticking effect, of LCDs is undesirable but
can occur if the display is addressed with the same content over a long time period.
Unlike phosphor-based displays such as CRTs and plasma flat panels, LCD displays do not suffer
from permanent image burn-in resulting from the prolonged display of static images. This is widely un-
derstood as one of the key technological advantages of LCDs. However, a temporary retained image
may result in such displays, if a static image is displayed for a long time. This effect is not a degradati-
on in overall life and does not appear in typical usage.
However, image sticking can occur and can be considered undesirable in certain applications where
24/7 display of static images is required. Every panel specification from every LCD manufacturer
usually includes language about "image sticking." As such, we believe the phenomenon is common to
all manufacturers.

How to minimize the effect?

In general, we can't promise that there is NO sticking effect within the TAMUZ LCD monitors.
The visibility of the effect depends on the LCD panel technology and most on the signal content itself.
In case of real video images with mostly continuously animated content the risk of a „burned-in"
image is low.
When static signals are displayed, for example feeds from a MultiViewer System or a graphic worksta-
tion, the risk to burn this type of content increases. But don't worry for short time periods. The sticking
effect appears only at longer influence.
If you use the monitor in an application where often static images will be displayed continuously, try to
use the asynchron mode, see menu SYSTEM – PROCESSING. This mode drives the LCD panel in a asyn-
chronous mode, what means that the displayed vertical frequency is not corresponding with the input
video. The monitor operates within his native vertical frequency. F.e. a 50 Hz video becomes transfor-
med in to a 62 Hz signal and formerly smooth moving items of the displayed footage becomes a little
jerky.
To avoid the image sticking and allow 365 days 24 hours operation, TAMUZ SPARROWHAWK se-
ries monitors have an user selectable „Anti-Sticking" feature within their internal firmware. Using the
hidden service OSD menu this feature is accessible and programmable.
© 02.07 TAMUZ - LCD Video Monitors
Here you see a monitor with a so called „burned-in" pattern. A formerly
displayed grid with hard contrast and sharp edges sticks and overlays as a
ghost image to the color bars.
LSM Digital Broadcast Monitor
SPARROWHAWK
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