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Hello all,

Bought my 42" pinoeer plasma a few months ago and i've just noticed some logo burn in's in the corner of the screen, there most noticeable on white backgrounds, but its a little worrying, do i need to totally avoid these channels with logos, also my wife pause's sky plus a lot when she's making a brew or going to toilet etc and you can now see the sky plus pause symbol in the bottom left hand corner permanently.

Is there anything i can do to remove this or can i adjust the screen to avoid more damage.?

2007-04-11 04:27:15 · 3 answers · asked by andrew b 2 in Consumer Electronics Home Theater

3 answers

From an earlier post [1] of mine:

"There is an optimal brightness and contrast setting for every display. However brightness and contrast settings will, to a limited extent, depend on the amount of ambient light in the viewing environment. More often than not many individuals will adjust brightness and contrast to well beyond their optimum setting, especially when the ambient light in the viewing room is high. This in turn causes the display to be overdriven and, in the case of plasma displays, may lead to a much greater risk of developing static image burn-in when frequently viewing certain source material such as television programming. The likelihood and severity will vary from one plasma display panel (PDP) manufacturer to another. However if you routinely follow a few simple procedures when using a PDP TV or monitor you can largely mitigate the issue of image burn-in." [1]

One option is to "use one of the many display calibration DVDs available today for properly setting brightness and contrast." [2][3][4]

"From this test, image retention appears not to be caused by phosphor burn-in. Rather; it appears to be an accumulated electrical charge within pixel walls. A full white image was displayed for a few hours on the two plasma TVs that showed residual images, after which the residual images disappeared completely. Had the phosphors aged sufficiently, this procedure would not have been enough to clear up the problem."[5]

"This points to the possibility of a residual electrical charge accumulating within the individual pixel walls, much like a capacitor. The all-white test pattern apparently cleared this charge."[5]

Basically you have two choices - you can carry on viewing a greater variety of source material, especially movies mixed with a smaller quantity of different television programs, and wait to see if the latent image diminishes gradually over time or you can attempt to remove or decrease any latent image by displaying an all white screen for several minutes at a time up to as long as an hour or more for more severe latent images. You should be able maintain the proper brightness (black level) and contrast (peak white level) levels on your plasma display while using this process but if necessary you could temporarily boost the contrast level to roughly 75 percent of maximum to expedite the process; just remember - it's very important that you set the contrast level back to its optimum setting when you are finished.

There are some PDP manufacturers that recommended performing a brief ‘white screen reset' on a daily basis. If you choose to use this procedure then you should not have to temporarily boost the contrast level from its optimum setting as you may when attempting to remove a more stubborn latent image.
 

2007-04-12 21:50:28 · answer #1 · answered by ? 5 · 0 0

most modern plasma sets have some degree of anti-image sticking circuitry incorperated into their models (usually found in the "specials" section of the menu) the most common being "orbiter" where the frame moves around the screen every two minutes or so-handy for the sports logo's etc. if the set has a whitewash feature leave it on this for twenty minutes or so so the pixels are refreshed. if the burn-in continues then try leaving the set on for a few hours with raster (no signal) on the screen.

2007-04-11 14:36:50 · answer #2 · answered by tony c 5 · 0 0

There are some suggestions at the end of this article - http://www.plasmatvbuyingguide.com/plasmatv/plasmatv-burnin.html

2007-04-11 14:10:18 · answer #3 · answered by Chuckie 7 · 0 0

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