Plasma gas???

Discussion in 'Plasma TVs Forum' started by iaria, May 10, 2004.

  1. iaria

    iaria
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    Hi there
    Is it true that plasma screens only last a couple of years before the colour starts to fade away?
    A friend of mine said that he would never buy a plasma screen for that reson.
    Please let me know, as I was thinking to get one

    Gerry
     
  2. suzywong

    suzywong
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    .......the US AV forums say that you can take the plasma along to your local Wall Mart and fill ' er up after doing the shopping........but be sure to use unleaded gas.........












    :devil: :laugh:
     
  3. Elvis

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    Trolling?
     
  4. YS-YS

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    lol,the plasma gas has a life its usually quoted to half brightness, take fujitsu 30,000 hours to half brightness. (two and a half hours a day for 30 years)
    but it still has phosphor the same as a crt, so the colour fade wont be too dissilmilar to a crt.
    btw it starts fading from day1, just like a normal tv.
     
  5. buns

    buns
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    the plasma that results from the gas will not fade unless it leaks or is lost in some other way. The onml way this would happen is through microcracking of the glass, obviously in this instance, even if you could, refilling is pointless.

    Pretty much all displays will age.... I wouldnt suggest that a plasma screen is really going to be much worse than anything else

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  6. LV426

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    Plasmas age due to deterioration of the phosphors that produce the light. Just like CRTs. It isn't anything to do with the gas.

    LCDs will not age for the same reasons - they don't have phosphors. The backlight might dim over time, but it is replaceable and its effects will be uniform. Sharp claim a 60,000 hour life for their LCD backlights.
     
  7. ntslik

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    I'd rather know who made up this rubbish, we get a lot of people every day say I don't want one as they will run out in 1-2 years
     
  8. LV426

    LV426
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    It seems likely that the "re-gassing" phenomenon was created by someone in the sales training department of one or more major high street retailers, who attempt to maximise their profits by co-ercing customers into parting with unrealistically large amounts of additional cash for an extended warranty.
     
  9. suzywong

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    This sales technique is exactly what has been reported on both sides of the Atlantic. In fact another thread on this very forum reports actually overhearing a saleman from one of this country's "leading" electrical retailers making such a statement (just search on "plasma gas", you'll find it!).

    anyway, I thought that the insides of a plasma screen were below atmospheric pressure.
     
  10. buns

    buns
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    im almost certain that the pressure cant be below atmosphere..... if that is the case, im more than a tad worried.....

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  11. gandley

    gandley
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    Bugger, does that mean i cant buy top up gas at my local store then?
     
  12. MAW

    MAW
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    Suzywong is correct, the pressure is below atmospheric I've been told. So your gas doesn't leak out, the air leaks in!:D But only when the glass breaks... The picture is really c**** when that happens. They break like a car window, little faceted grains. A courier broke one of ours once. Incidentally we had another 'leakeage' just recently. Check the provenance of any cheap TH42PHD6 you may be offered, it might be mine!
     
  13. dcguy

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    I agree with all these other threads...the plasma should exhibit the same life as a regular CRT. So don't worry about the plasma becoming useless in a few years, go ahead and buy one now. It is highly worth it to purchase an extended warranty, however. Just make sure it covers everything. I think paying 10-20% of the price of the plasma for the warranty is worth it because if a few pixels go out, or the screen does fade way before it should, then you can get it fixed at no cost. Plasmas are very expensive to fix otherwise.

    Fyi, if you are in the United States, Best Buy has one of the best deals on plasma extended warranties. No matter how expensive a plasma you purchase, Best Buy will give you a 4 year "everything covered" service plan for only $350. They will come out to your house for free and fix anything, including pixels. If they can't fix it, they will give you a whole new plasma.
     
  14. buns

    buns
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    god im really shocked by the pressure..... fair enough plasmas I deal with are low pressure but they are also using constant gas feeds and large vacuum pumps.... i'll have to look into how things are sealed.....

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  15. iaria

    iaria
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    Thank you guys, you have been very helpful again
    I will defenately tell whoever told me about plasmas not to worry about.
    Once again thank you

    Gerry
     
  16. suzywong

    suzywong
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    Yeah, just buy it....the bigger the better........e.g.

    Pioneer 504 HDE (ducks as MAW lobs large brick in my direction!!)

    Pioneer 504 MXE (when MAW gets his hands on one!!)

    Panasonic whatever if you want deep blacks (yawn)

    turn on the Meridian-TAG-Linn-Denon more-numbers-than-u-can-count 11.1 surround sound system set up for Dolby-DTS-Prologic 10 and volume knob set to 11 (for all you Spinal Tap fans)

    put on favourite DVD (or Terminator 2 if you must)

    open bottle of favourite tipple

    sit back and ENJOY THE D*** THING!!!

    :laugh: :devil:
     
  17. boardwalk

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    On a similar theme I was ''told' by someone in my office who overheard me discussing buying a plasma screen, to not get one because the screen will fade if exposed to the suns UV rays for extended periods.

    How true is this or is it another 'I heard some bloke say that....' comment.
     
  18. YS-YS

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    no no no no, go into your local Cu**** or Di**** and you can buy the top up gas, they sell the extended warranty with that also, incase you acidently let it leak out on the ground and it burns its way through the earths crust causing a small release of magma destroying your house. NOTE - the warranty doesnt cover any damage caused by the leakage, only for the replacement gas.

    :laugh: :laugh: :laugh:
     
  19. Joe Fernand

    Joe Fernand
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    boardwalk

    The only 'issue' with a PlasmaTV (or any TV) in strong sunlight is that the Sun is often a tad brighter than the light output from your TV and its difficult to see what's being displayed on the TV if you have it in direct sunlight.

    As the 'front end' of a PlasmaTV usually consists of bits of Plastic (bezel), big sheets of Optically treated plastic (screen filter), some Phosphor in the plasma cells and the odd LED indicter I think you'll find they are pretty impervious to UV radiation - strong UV is probably worse for humans that it is for a Plasma TV; and Factor 30 is not advisable for slapping on the PlasmaTV.

    Maybe suggest the Office AV 'Specialist' sticks to Hello magazine in future :)

    Best regards

    Joe
     
  20. boardwalk

    boardwalk
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    I guess I better cancel my suntan lotion order and put one in for 'Hello' then ;-)

    I argued the same case in that everything will be affected by sunlight in someway but would not expect a plasma to be affected to the extent's he was quoting. He was saying he read that after a few months the screen would fade. I can only guess he is being a bit over enthusiastic with the story he has been told.

    Never mind I'm still getting one regardless of what he says.
     
  21. MAW

    MAW
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    Perhaps we should have a sticky for the best 'I won't buy a plasma because... ' story!
     
  22. alancolledge

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    "Don't buy a plasma because they emit, much like mobile phones, a radioactive signal which will eventually damage your brainwaves.

    This causes numerous conditions such as upgradeitus, hearing frequency level problems and a sight imparement for the colour black" - Proffessor Dave Dixon Phd ASS.UME

    This was recently taken from a HSE document.
     
  23. ntslik

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    The one i get all the time is "wow, you need a big house for that" (pointing at a 42" plasma)................NOOOOOOOO thats the Bl***y point it's 1 1/2" thick and you can hang it on your wall, unless you rooms less the 42" wide i suppose you would run into problems.
     
  24. ntslik

    ntslik
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    What does HSE stand for!! Horse S**t Excuses
     

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