Dark spot on LED screen - WTF?!

Discussion in 'TVs / Monitors' started by nilanko, May 10, 2011.

  1. nilanko

    nilanko Banned

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    My dad's ThinkPad L412 has got a small dark spot on its screen. It's not completely black, it's a grey irregular shaped (almost circular) spot. I thought it was a dirt particle so I tried cleaning but that didn't help. The spot's diameter is hardly half millimeter and is hardly noticeable except if there is a solid color displayed in that area. I have confirmed it is NOT a stuck pixel because a stuck pixel shows varying colors depending upon the color displayed. If it is a dead pixel, it must be black. But it is not. It is very very light grey in color and appears the same no matter whatever is displayed. I tried many dead pixel apps but none helped. Can you help me sorting out what exactly that spot is?
     
  2. modder

    modder RAMPAGE!!!!

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    A quick google search revealed that dead pixels can be of different colors (but I'm not that sure)

    See:
    dead pixel color ?
    Grey DOT on LCD screen???

    It might be a dead pixel.
     
  3. OP
    nilanko

    nilanko Banned

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    But it's larger than a pixel and a dead pixel is generally sharp but mine is blurry -- about half a milimeter.

    I used a magnifying glass to see that area of the screen. I could clearly see small squares. None of the light squares were off. Only 2 squares were less lit (white display in that area) which is making a 'grey spot' or dull spot. It is neither a dead or stuck pixel cause it's only less lit. What might be that?
     
  4. noja

    noja Bang! Bang!

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    I once sat on my laptop
    it developed a huge black spot in the center of the screen.
    I took it for repair and told the guy at the shop exactly what happened.
    What did he do?
    he took a piece of paper
    made a paper ball from it
    rubbed it on the flat surface of a table to get a flat surface on the paper ball
    next he rubbed the same on the screen gently(but with a little bit of pressure) with the screen off
    after that he turned the screen ON and the spot was gone.
    It was like magic!
     
  5. abhidev

    abhidev New Member

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    thats a new technique.....
     
  6. OP
    nilanko

    nilanko Banned

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    @noja: will try that.

    I tried the UDPixel app and also the message technique, all this made the spot fainter but it didn't go away, also its shape has changed a bit.
     
  7. abhidev

    abhidev New Member

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    whats udpixel app??
     
  8. OP
    nilanko

    nilanko Banned

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    ^^Helps in correcting stuck pixels. But my case is neither stuck or dead. :(
     
  9. nginx

    nginx New Member

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    That wasn't magic. Dead pixels can't be removed like that. Your screen just had some sticky dirt on it which is why he was able to remove it.
     

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