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The normal use of a TV or plasma display monitor should include a mixture of TV picture types. The most frequently
used picture types should fill the screen with constantly moving images rather than stationary images or patterns.
Displaying the same stationary patterns over extended periods of time, or displaying the same stationary pattern
frequently can leave a subtle but permanent ghost image. To avoid this, mix your viewing pattern. Do not show the same
stationary image for more than % of your total viewing in any one week. Display constantly moving and changing
images that fill the screen whenever possible.
TV’s or plasma display monitors use phosphors or phosphor picture tubes to create the image on the screen.
All
phosphor picture tubes or plasma display monitors age with use.
As they age, their light output is gradually reduced.
Normal pictures fill the screen with constantly changing images. Under these conditions, picture tubes or plasma display
monitors age at an even rate across the entire screen. This maintains a TV picture that is evenly bright over the whole
screen. Stationary images or images that only partially fill the screen (leaving black or colored bars to fill the screen),
when used over extended periods of time or when viewed repeatedly, can cause uneven aging of the phosphors and leave
subtle ghosts of the stationary images in the picture.
Setting the video setting of contrast to a medium position can help slow phosphor aging.
Still or stationary images may be received from broadcasters, cable channels, satellite channels, DVD discs, video
tapes, laser discs, on-line services, web/internet searching devices, video games, and digital TV tuner/converter boxes.
Examples of these types of images can be, but are not limited to the following:
Letterbox top/bottom black bars
: shown at the top and bottom of the TV screen when you watch a widescreen
(:) movie on a standard (:) TV.
Side bar images
: solid bars shown on each side of an image when watching a standard (:) program on a
widescreen (:) TV.
Stock-market report bars
: ticker running at the bottom of the TV screen.
Shopping channel logos & pricing displays
: bright graphics that are shown constantly or repeatedly in the same location.
Video game patterns and scoreboards
Bright station logos
: moving or low-contrast graphics are less likely to cause uneven aging of the picture tubes.
On-line (Internet) web sites
: or any other stationary or repetitive computer style images.
Closed Caption Backgrounds:
When set to black or bright color, if Close Caption will be used frequently, Mitsubishi suggests
the use of the gray or translucent background.
IMPORTANT NOTES
WARNING:
Uneven phosphor aging of picture tubes and plasma display
monitors normally are NOT covered under warranty.
