Mitsubishi WS-48313 Owner's Manual

The normal use of a TV 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 

subtle but permanent ghost images.  To avoid 

this, mix your viewing pattern and reduce the 

initial contrast level.  Do not show the same 

stationary image for more than 15% of your 

total TV viewing in any given week.  Display 

constantly moving and changing images that 

fill the screen whenever possible.

This projection TV uses picture tubes to project the 

image to the screen.  All picture tubes age with 

use.  As they age, their light output is gradually 

reduced.  Normal TV pictures fill the screen 

with constantly changing images.  Under 

these conditions,  picture tubes 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 from the 

stationary images in the picture.

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 (16:9) movie on 

a standard (4:3) TV.

  Side bar images: 

solid bars shown on each side of an image 

when watching a standard (4:3) program on a 

widescreen (16:9) TV.

  News and 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.

  Online (Internet) websites: 

or any other stationary or repetitive computer 

style images, including digital photos

  Closed Captioning

 

Mitsubishi recommends using a gray 

background rather than black or a bright color 

if you frequently use closed captioning.