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Bad Pixels: a useful test - & how fussy should we be?

Discussion in 'Plasma TVs' started by wellsi, Jan 27, 2004.

  1. wellsi

    wellsi
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    Went to pick up my new Hitachi 32PD3000 last night but tested the screen for bad pixels in store.

    This is actually quite easy on the 32PD3000;
    Plug the power lead into the screen,
    turn on power at the front,
    then press a small second power button at the back for a second or two (without having to hook up the MM box)
    this sets off a test pattern that rotates through about 10 colours)

    This was a useful thing to do; as the Purple and Red showed up a black pixel slap bang in the middle of the screen.
    We all sat there, watching the test pattern for a minute, and the salesman agreed it was too annoying, but fell outside of Hitachi's 6 (yes SIX) pixels IN A ROW return tolerance. (how crap is that?)

    Thankfully, as I hadn't taken it, he's ordering in another one for me!

    But, I thought, realistically, watching a 32" screen from 8 feet away; would I ever have noticed it?

    What's your thoughts on this; how fussy should we realistically be?

    Cheers
     
  2. BKATZ

    BKATZ
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    Well,

    If you were buying a new car, would you be happy with a chip on the bonnet, or in the windscreen?

    I think you are entitled to get a 100% working product IMHO.

    B.
     
  3. Galaxy

    Galaxy
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    If every screen was 100% perfect you would probably have to pay ten times as much for your Plasma.

    Wellsi....can you see that flea on the cat from eight freet away? LOL

    Its all a matter of degree.

    Best regards David
     
  4. wellsi

    wellsi
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    You may not want a scratch on a new car, but you wouldn't notice a tiny scratch at the bottom of the body work would you? Equally, re the flea.
    That's my point; not having a screen yet, I don't know if you could physically see a black dot on a moving image; I imagine it would be worse if you had a permantly lit pixel (do they occur as well?)

    What's the deal? do most of you have screens with the odd dodgy pixel? if so, then I know it's okay to have the odd bad pixel.
    If there are people out there with one bad pixel that drives them nuts each time they watch a movie, then I know I do indeed need to be a bit fussy...
     
  5. BKATZ

    BKATZ
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    Which goes to show our individual perceptions of acceptable are obviously different.
    However, good on you for testing the panel prior to parting with the £. That way there is no argument!

    B.:)
     
  6. jmack

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    you say you went to pick it up from shop. as long as you dont take it out the shop i suppose you could ask for another. i would.
     
  7. GaryB

    GaryB
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    Indeed they do. You can even get flashing pixels which are extremely annoying.
     
  8. Brogan

    Brogan
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    Saucy :devil:

    Luckily my 504 appears to be pixel perfect but I haven't looked too closely just in case...
    What the eye can't see and all that.
     
  9. richard plumb

    richard plumb
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    if you have a permanently lit, or even flashing pixel, couldn't you mask it off with a little bit of black tape? Thats assuming you are keeping the set, and black pixels are less annoying?
     
  10. calscot

    calscot
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    I sent back a pj as it had a permanently lit green pixel. It was a bit like the zit on someone's nose - you just can't help looking at it...
     
  11. wellsi

    wellsi
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    Hi Calscott

    Out of interest, did they accept that? (most manufacturers have this insane "more than 4 - 6 together in a row" rule).
    Does that not apply to permenantly lit pixels (which would, of course, be way more infuriating than a plain black pixel)?

    Cheers
     
  12. GaryB

    GaryB
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    The problem with this (apart from needing a very small piece of tape!) is that the plasma panel is an inch or so behind the front glass so the pixels that it would cover would vary as your viewing angle varied.
     
  13. wellsi

    wellsi
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    I actually thought this was a joke... you don't spend £2 - 4 K on a TV for it to require bits of black tape, regardless of what the manufaturer's claim as acceptable tolerance!
     
  14. richard plumb

    richard plumb
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    its been suggested in the past for issues with dead pixels on LCD front projectors - you put tape, or a little dot of black marker pen on the screen where the dead pixel projects.
     

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