Image Retention - Pioneer PDP-4270HD Operating Instructions Manual

Important User Guidance Information
Fan motor noise
The rotation speed of the cooling fan motor increases when the
ambient temperature of the Plasma Display becomes high.
You may hear the sound of the fan motor at that time.
About the menu window size following video
format switch
The video program that you watch may be high definition (HD)
or standard definition (SD). This Plasma Display is designed to
scale to each type of definition properly. If the video program's
definition type changes while a menu window is displayed on
the screen (for example: HD → SD or SD → HD), the menu size
may temporarily shrink or enlarge until the scaling is
completed. This may happen, for example, when you switch
between television and an external digital video recorder
(D-VHS), or when your recorded program switches between
different definition types, while the on-screen menu is being
shown.
If this happens, the menu will return to its normal size after two
to three seconds. This action is normal, and does not indicate
a problem with your Plasma Display system.

Image Retention

When a static image is left frozen on a display for several hours,
a faint imprint of the image, known as image retention, can
remain. This image retention may be temporary or permanent.
Although caused by different things, image retention can
occur on all display technologies, including plasma and LCD.
On today's plasma displays, permanent image retention is less
of a worry. Most image retention can be improved simply by
watching moving video.
Image retention, also known as burn-in, can occur in all
phosphor-based display systems (including CRT television
systems–both direct view and projection–as well as plasma
display systems). Displaying the same still images for long
periods should be avoided as permanent image retention or
burn-in may occur. Recommended guidelines are as follows:
Do not display static images for long periods (such as still
images, fixed images from PC or TV game equipment, and/or
fixed images such as time of day indicator or channel logo
display).
Do not display content in the 4:3 aspect ratio (black or gray
bars on left and right side of content) or letter-box content
(black bars above and below content) for extended periods of
time, or use either of these viewing modes repeatedly within a
short period of time. This plasma display system is equipped
with multiple wide-screen viewing modes; use one of these
screen modes to fill the entire screen with content.
Displaying dark images after displaying still images for a
period of time may cause image retention. In most cases, the
image retention can be corrected by displaying bright images
for a similar period of time.
If you display still images on your plasma display system for
long periods of time, image retention may be irreparable.
CAUTION
Panel sticking and after-image lag
• Displaying the same images such as still images for a long
time may cause after-image lagging. This may occur in the
following two cases.
1 After-image lagging due to remaining electric load
When image patterns with very high peak luminance are
displayed more than 1 minute, after-image lagging may occur
due to the remaining electric load. The after-images remaining
on the screen will disappear when moving images are
displayed. The time for the after-images to disappear depends
on the luminance of the still images and the time they had
been displayed.
2 After-image (lag image) due to burning
Avoid displaying the same image on the Plasma Display
continuously over a long period of time. If the same image is
displayed continuously for several hours, or for shorter periods
of time over several days, a permanent after-image may remain
on the screen due to burning of the fluorescent materials.
Such images may become less noticeable if moving images
are later displayed, but they will not disappear completely.
NOTE
• When a program menu, TV Guide screen or frozen image is
displayed for 5 to 10 minutes, the system automatically turns
the image off to prevent damage from screen burning.
Preventing damage from screen burning
• It is recommended that you enjoy watching images
displayed in full screen, except when doing so may result in
copyright infringement. See page 69.
• The Energy save function can be set to help prevent damage
from screen burning. See page 67.
CAUTION
DO NOT PLACE THIS PRODUCT ON AN UNSTABLE CART,
STAND, TRIPOD, BRACKET, OR TABLE. THE PRODUCT MAY
FALL, CAUSING SERIOUS PERSONAL INJURY AND SERIOUS
DAMAGE TO THE PRODUCT. USE ONLY WITH A CART,
STAND, TRIPOD, BRACKET, OR TABLE RECOMMENDED BY
THE MANUFACTURER, OR SOLD WITH THE PRODUCT.
FOLLOW THE MANUFACTURER'S INSTRUCTIONS WHEN
INSTALLING THE PRODUCT AND USE MOUNTING
ACCESSORIES RECOMMENDED BY THE MANUFACTURER.
A PRODUCT AND CART COMBINATION SHOULD BE MOVED
WITH THE CARE. QUICK STOPS, EXCESSIVE FORCE, AND
UNEVEN SURFACES MAY CAUSE THE PRODUCT AND CART
COMBINATION TO OVERTURN.
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