Recommended Operating Conditions
PS5580 Installation Guide
6
Burn-In Versus Temporary Image Retention
Burn-in causes the screen to retain an image essentially forever, with little or no way
to correct the problem. Under normal use, an LCD module will not experience burn-
in, as plasma displays do, nor will it retain images in any way.
Normal use of an LCD module is defined as displaying continuously changing video
patterns or images. However, LCD modules can experience
temporary
image
retention when recommended usage guidelines are not followed.
What is Temporary Image Retention?
Temporary image retention (TIR) can occur when a static image is displayed
continuously for extended periods of time. An electrical charge differential may build
up between the electrodes of the liquid crystal, which causes a negative-color video
image (color-inverted and brightness-inverted version of the previous image) to be
retained when a new image is displayed. This behavior is true for any LCD device
from any LCD manufacturer.
TIR is not covered under warranty. See standard warranty terms and conditions for
details. Here are some guidelines to help you avoid TIR:
• Use the LCD module to show a screen saver, moving images or still pictures that
change regularly. When using high-contrast images, reposition the images
frequently.
• Turn off the PS5580 when it is not in use.
Normal Use Thermal Guidelines
Normal use of the LCD module and power supply module are defined as operating in
the open air to prevent heat buildup, and without direct or indirect heat sources such
as lighting fixtures, heating ducts, or direct sunlight that can cause the modules to
experience high operating temperatures. For all modules, do not block fans or
ventilation openings. If the LCD module will be installed in a recessed area with an
LCD surround or enclosure, ensure adequate openings are applied for proper air flow
and ventilation.
At 2000 meters altitude or below, the maximum ambient operating temperature for
the LCD module cannot be above 104º F
(40º C) nor below the minimum ambient
operating temperature of (32º F)
0º C. If one of these conditions exists, it is up to the
installer to ensure that module placement is changed, thermal shielding is provided
and/or additional ventilation is provided to keep the display within its nominal
operating parameters.
