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Thread: 3 dead pixels already and its only 1 day old!!!

  1. #1
    w33d smoka
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    3 dead pixels already and its only 1 day old!!!

    hi ,,just taken delivery of my aoc lm800 18" tft yesterday and although im quite happy with it i noticed within 30 mins of trying it out i had a dead pixel ,then noticed when i was squinting to look for more theres actually another 2 ,although tiny, the first 1 i noticed is actually quite annoying when ure on a black screen or anythin like that!!

    its just a constant blue dot nommatter whats onscreen,where its located tho isnt realy a prob as its right on the bottom of the screen where the taskbar sits,,and when in windows u realy have to struggle to see it in the taskbar but when loading anything or booting up windows where ure faced with a black screen its quite noticeable and i fear that maybe more will come,,

    can any1 tell me how fast these dead pixels apear and howcome ive got a few on my brand new tft,i heard somewhere that pretty much all tft,s have atleast 1 dead pixel somewhere onscreen but i thought that sounded abit flakey realy,,now that ive already got a few should i be worried incase more appear?

    thnx

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    It's a problem with all tft screens, not many manufacturers will give a dead pixel guarantee
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    Formerly known as Viet Cong Zombi and tuone
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    return it!!! or try and get it half proce as an alternative to your returning it to them

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    Vive le pants! directhex's Avatar
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    ISO SPEC13460-2 details dead pixel allowances.

    Class II is the common class for consumer equipment
    Class I is for Military, Hospital or other Critical applications

    Allowable missing pixels per million pixels on display:
    Code:
    Class  | A Pixels Always Lit | B Pixel Never Lit | C  Sub-Pixel Always Lit, Never Lit, or blinking 
    I      |         0           |         0         |                       0 
    II     |         2           |         2         |                       5 
    III    |         5           |         15        |                      50 
    IV     |         50          |        150        |                      500
    an 18" tft has 1310720 pixels, so can have 2.26 class a errors, 2.62 class b errors, and 6.5 class c errors. a PERMANENTLY colored pixel is actually 3 class c errors (always-off red, green, always-on blue), but is only 2 errors if you can distinguish shades of blue. you can only return a screen as faulty if it misses these figures.

    --jo

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    Vive le pants! directhex's Avatar
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    also, they're a manufacturing defect, they don't develop over time.

    --jo

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    w33d smoka
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    realy,,,, so say 4 example if i just accepted it,,ide get no more dead pixels hex apart from the 1s i already have??

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    Just send it back, 14 day cooloff period means you can send all manner of stuff back for NO REASON AT ALL. Then buy it cheaper from somewhere else
    Well Hello!

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    If your 5555... Swafe's Avatar
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    RMA RMA RMA

    *chants*

    cmon people !
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    Or just buy a better one from somewhere else
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  10. #10
    Senior Member SilentDeath's Avatar
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    yea just send it back, distance selling regulation gives u 7 days or sommin

  11. #11
    Cable Guy Jonny M's Avatar
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    Isn't that only if it's unopened though?

    Could always make more dead pixels in a cluster

  12. #12
    Drop it like it's hot Howard's Avatar
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    It might actually just be a "lazy pixel"
    I've heard that some sort of work their way back after a few days of the thing being new.
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    Vive le pants! directhex's Avatar
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    distance selling rules are for 7 days, where the returned item is as new. 14 days is for door-to-door sales.

    you can't "make" dead pixels in a way which cannot be traced, no matter how you try - and no manufacturer is going to believe they let a class D error (multiple errors in a 5x5 grid) slip out.

    you can't RMA it as your screen isn't defective enough. you'd need at least 3 permanently permamently fixed pixels of one type (i.e. 2 black 2 white & 2 fixed coloreds still isn't enough for a screen of your size)

    --jo

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    Official Member luke313's Avatar
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    As Howard said, I've heard of so-called lazy pixels. I've also heard that a way to fix it is to rub the area around the lazy pixel in a stroking manner for a while (Sounds stupid, I know, but its worth a try ). Unless it is defective and has the amount to be classed as defective, you cannot rma unless you have paid extra for a dead-pixel check where you *should* be guaranteed a dead-pixel-free tft. HTH

  15. #15
    Drop it like it's hot Howard's Avatar
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    Mmm...Stroking manner..Might give that a try on my....Monitor...

    Anyway, search for lazy pixels in Google and see if there are any tips.
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    Vive le pants! directhex's Avatar
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    just massage the area around each one for a bit, it can potentially spark life

    --jo

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