Wednesday, March 18, 2009

Ghostbust Your Plasma

Ghostbusting Your Plasma TelevisionHave you ever turned off your TV or monitor and there was a ghostly image on the screen? This ghost is referred to as plasma burn. Plasma burn occurs when there is uneven wear in phosphors on a phosphor based screen, whenever a static image is left on the screen for too long; especially a high contrast image the potential for burn in is there.

Newer plasma based tubes include burn-in reduction features. Screen savers and pixel shifting help with the prevention of burn in. Pixel shifting is a slight unnoticeable shift in the image a by one or two pixels. If a ghost does happen many new sets can blast a burn-in with a white image for several minutes to hour. Cable and satellite service providers help with preventing burn in by giving you the option of changing pillar boxes that can also burn in by changing them from black to grey.

Potential for burn-in is greatest during the first 100 or so hours of use, during that time if you keep the contrast low and avoid showing static images or letterbox bars on the screen for long stretches of time it will help prevent any burn-ins. You might get some image retention once in awhile if you look hard enough after hours of static images, but even then it's temporary, not permanent. Video games may be a worry because of static logos that are in the corner of the screen but as long as you wait till after the first 100 hours before any long use it should be fine. Just keep mixing it up. Also, cheaper models of TVs are more prone to burn-in like the Insignia, but a good rule is not to go too cheap if you want to play it safe.

1 comment:

John Beagle said...

Great post! Love the title!