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Screen burn OR retention???????????

Discussion in 'Plasma TVs' started by Leerock, Aug 13, 2005.

  1. Leerock

    Leerock
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    Yesterday i ve noticed a logo stuck on my 435xde.
    I though it was image retention and i ve let other channels play for hour but
    I ve checked it again today and that "S" logo is still there.
    My xde has 235 hours and i thought it was very difficult for a screen burn to appear after these hours.
    I never left that "S" channel on for more than 2 hours.
    It s logo is a bright white "S" and now it s stuck on my new display.
    Contrast is at 25 and brightness +2.
    I m really really worried now.
    Do you think it s an image retention?
    You can only see it when the screen goes black.
    Jesus.
     
  2. Lionheart

    Lionheart
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  3. Leerock

    Leerock
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    Thanks Lionheart :smashin:
    I hope it will disappear
     
  4. Badger0-0

    Badger0-0
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  5. orange66

    orange66
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    "Key Takeaway ñ Central to this test is the acknowledgement that our demonstration
    was an extreme scenario that few consumers would ever experience with their
    televisions. Most potential buyers scared off by the notion of plasma "burn-in" are
    more focused on the damage caused while pausing a football game or their favorite
    show on TiVo for a few minutes while running around the house. Our tests show that
    current plasma technology can tolerate a full 48-hour session on pause, and then
    resume its original state with no permanent effects after a 24-hour video loop. Thus,
    while it is unlikely that a consumer of a current generation (or later) plasma TV will
    even notice any image retention caused by 5 or 10 or even 60 minutes on pause, it is
    most definite that any such image retention will disappear over the course of
    subsequent TV watching.
    "

    Interesting. I would add 2 observations. Firstly, if it takes 24 hours of constant viewing to sweep the screen clear, then in effect you will have logos retained constantly, as you are unlikely to fit 24 hours of this nonsense inbetween watching your tv. Secondly, the ability to see the burn depends on what you are watching. If it is a freeview logo burnt top left, then watching dvd in widescreen will simply make it go away. However, put on full screen images that are also bright, and you will still see it.

    There is a myth on this forum that if you expose your screen to a hundred hours on soft settings, it makes it burn proof. Let me pop that bubble right now, it does not. Check the manual of your tv, if it says logos can leave "permanent after-image", then take the manual at its word.
     
  6. Lionheart

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    Hi Orange...I think they meant a 24hr sweep in order to clear the image that was retained because of their 48hr test. Obviously most of us would never take our sets to that extreme and would therefore need less sweep time to clear the screen, but its nice to see tests taken to the extreme to show just what a Plasma of today can take with no permenant effect
     
  7. Badger0-0

    Badger0-0
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    There is a myth on this forum that if you expose your screen to a hundred hours on soft settings, it makes it burn proof. Let me pop that bubble right now, it does not. Check the manual of your tv, if it says logos can leave "permanent after-image", then take the manual at its word.

    I've never seen that said :confused:

    But I have seen a lot of people (myself included) say lower settings are a good Idea for the first couple of hundred hours.
     
  8. Alan A

    Alan A
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    Pioneer Operating Instruction manual (available for download at the Pioneer web site) for the PDP 505/435 range, Page 7 ""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 flourescent materials. Such images may become less noticable if moving images are later displayed, but they will not dissapear completly"

    Its OK saying "well I have a XXX plasma, so that does not apply to me", of course it will. But how many of you will keep the plasma for longer than say, five years at the most anyway?
     
  9. Badger0-0

    Badger0-0
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    And your point is???

    I was making an argument to the comment that "running a set at lower settings for a couple of hundred hours makes it burn-proof"
    I've never seen that written.
    I thought it was common knowledge on this forum that it's better safe than sorry.
    I probably didn't make myself clear.
    But I think everyone on here knows it's not much of a problem, although it definitely does exist and caution should be exercised :smashin:
     
  10. Leerock

    Leerock
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    After 24 hours of displaying dvd at full screen and the bloody thing is still there.
    I guess I got a screen burn.:thumbsdow
    After speding a 2.5 grand and being so cautious not to leave channels with logos for more than 1-2 hours, I got a screen burn.
    Screen burn is still a serious issue on plasmas and people should think twice before buying one.
    Plasmas are bulls***. :thumbsdow
    I should go for an lcd.
     
  11. Badger0-0

    Badger0-0
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    :eek: Has it not faded at all???


    I sympathise mate, I really do.

    I'd hit Pioneer with the article in the link and ask what's going on.
    There own blurb says it can't happen, so I'd say you have good cause for complaint.
     
  12. Alan A

    Alan A
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    but the installation manual DOES say it can happen.
     
  13. Badger0-0

    Badger0-0
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    Agreed :smashin:

    But that article says it doesn't.

    A good reason to argue, IMO
     
  14. Alan A

    Alan A
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    I would imagine that Pioneer will state that the information in the installation manual is more relavent, as it does also say that this is an aspect of plasmas.
    It depends on how much money you want to spend to take them to court in the last instance I suppose
     
  15. xx396

    xx396
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    Oh no here we go again. How long have you had that S channel on for overall and whats the longest non stop session its been on. Maybe someone had it on without you knowing :lease:

    Has this obviously happened during the "run-in" period and were your settings low enough? I really symphatise but can't help but be unsure, if it was "this" easy to do wouldn't there be 2000 of these posts in here!!
     
  16. Leerock

    Leerock
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    I can t tell you the overall time that that channel it s been on
    but the longest session it s been on is not more than 2 hours.
    Nobody had it on without me knowing and i m very sure for this.
    I only noticed it 3 days ago when my screen had 235 hours.
    The only reason i could imagine that could cause this is that during the run in period I had contrast at 18 and brightness at 0.
    Maybe 0 brightness was not low enough.
    I must repeat that it s a bright white logo.
    Do you think it will fade out as time pass?
    It s noticable during movies too.
    It depends what is being displayed on that part.
    Too shame. :(
     
  17. xx396

    xx396
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    I can't see it being permanent but may take a bit to clear up, looping a 1.85 ratio dvd for a while seems an often quoted approach but don't leave it unattended and risk the dvd freezing :)

    What are the contrast and brightness ranges for that set i.e. -30 to +30
     
  18. Lionheart

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    I will Alan...I have kit dating back to the 70s...I expect kit to last 20 years....and if it is made well it will
     
  19. Leerock

    Leerock
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    yes it s -30 to +30.


    I ll try playing 1:85 dvds at high contrast and brightness levels.
    Hope this will at least fade it out a bit.
     
  20. xx396

    xx396
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    Yes in that case your contrast was much too high, it should be at perhaps 30% for the first 100 hours, and then when calibrated with a DVE disc or professionally by the ISF, it'll probably still be under 50% as this gives the most authentic picture. Turn it down to at least 0. They really should put this information on the first page of the manual in bold print.
     

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