Question about Insignia IS 20" TV040919 TV

4 Answers

Growing Black Spots on Insignia LCD Flat Screen

They were small black dots on the bottom of our screen at first. Now they have grown quite large and and are spreading. Could this be from cleaning liquid leaking in from the screen and can it be fixed?

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  • 6 more comments 
  • puddyfutt Apr 10, 2008

    One of the 2 spots in the bottom right hand corner is 4 inches in diameter, the other spot is 2 inches in diameter. Then there is another in the upper right hand corner 1 inch in diameter. And they are all growing.

    I am mechanically inclined but is this a problem I can fix?

  • puddyfutt Apr 10, 2008

    Plus there is a halo of white then blue, red, purple around the spots.

  • puddyfutt Apr 10, 2008

    I bought the TV in 2007 June.

  • puddyfutt Apr 10, 2008



    Here is what the screen looks like.

  • puddyfutt Apr 10, 2008

    I found out a baby wipe was used but that was 2 weeks ago.

  • puddyfutt Apr 10, 2008

    BTW sorry i didn't mean to rate any solution yet.

  • puddyfutt Apr 10, 2008

    They started out as very small black smudges that were spread out at the bottom and top of the screen. Then in the past 2 weeks grew together and larger. But in the past 3 days they grew substantially.
    How would I go about drying out the screen?

  • puddyfutt Apr 10, 2008

    Thanks to all for all of your advice and help. I will try to dry it out and if that fails will see if the warranty covers the problem. Let you know the outcome in 10 days or so.

    Thanks again to all of you!!

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4 Answers

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  • Master
  • 6,966 Answers

Hi,

Black dots/spots on an LCD panel display indicates either a dead pixel or a stuck pixel. Alternately, if you press lightly on the black spots and they go bigger/darker, then in some instances, it could be that the frame holding the display has been slightly warped when too strong a pressure was applied when it was being cleaned. Should this be the case then corrective measure would be to disassemble and flatten whatever area was dented. Some have reported success with the use of a suction cup. Perhaps this, this or this might be interest you.

If the unit is still under warranty, please try discussing your concern with your dealer. Though a few small spots are an acceptable norm. Alternately and if the warranty has lapsed, there are companies online that offer LCD replacement kits or will replace/fix your LCD and it would cost you less than the cost of a new screen or TV.

Other than the above, am afraid that your options are rather limited.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Apr 10, 2008

  • 1 more comment 
  • Louie  Role
    Louie Role Apr 10, 2008

    Hi again, would it be possible for you to post a photo of how the spots look like? The middle icon on left above is "Insert Image". The image though would have to be 150kb or smaller.

  • Louie  Role
    Louie Role Apr 10, 2008

    That would mean "...The middle icon on left above is "Insert Image"...." on the Add a Comment box.

  • Louie  Role
    Louie Role Apr 10, 2008

    an excerpt from the site I referred you to....
    "...it is possible to
    move the defect by gently pressing the panel with your fingers to move
    the Mura to the side from a useful area in the screen
    ..."

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LCD stands for liquid crystal display. There are cracks in your tv and the stuff around it are the liquid crystals that are leaking into the inner edge of the screen cause the black dots and halos.

Posted on May 28, 2013

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  • Master
  • 3,037 Answers

Have you had any magnetic material by or near the screen?

It must be determined if the spots really are on the inside of the screen OR if they are dead spots on the projection tube(s).

Could be dirt on the screen or the lense of the tubes. Could be a burn spot in the liquid coolant OR more likely a burned phosphor spot because of coolant loss.

If you are mechanically inclined you can open up the case and see if you can get in where you can see the surface of the mirrors and the lens over the projection tubes. You may be able to ascertain where the spots are coming from.

IF: For example, the spots are on only one or two of the three projection tubes it is likely the spots you see on the screen are not totally black but has some colors associated with it. That could be a clue. Also, study the spots and see if they have any crawling around the edges.

Replacing the liquid coolant is not so difficult, but if the tube(s) have a burnt spot on the screen they will need replaced - which is very expensive.

Let me know if you need more. I hope this will help get you started.

Posted on Apr 10, 2008

  • 4 more comments 
  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    yes, you can fix this if you wish (wouldn't be too hard) or you could take it to a repair shop or you could just get another tv. Let me know what you want to do and whether you have any further questions. thank you

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    Two and a half men, great show!

    anyway you didn't wash the screen recently, did you?

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    ok, you could try drying the tv out but two weeks ago? Did the spots appear soon after using the wipes? and just keep growing for the last two weeks. Then a chemical in the wipes is just spreading between the layers of the screen and needs to be cleaned out. Please let me know about how long has the spots been there. thanks

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    how long was the warranty good for?

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    It takes many days for it to dry out on the inside because of poor air
    circulation. But is should eventually dry and appear as though it was
    not there; you may find some evidence of the stain.



    If it does not clear up after time, you may have to remove the screen
    and have the back side cleaned; but you cannot do it by yourself
    because the freznel lense material requires special cleaning agents and
    technique. You really should contact with a service agency who knows
    how to do it for your set. It will cost a service call, such as $40 to
    $100, depending on their fee structure. I would call a few places to
    get the best idea from the shops.



    But, give it a full week to 10 days to dry out before calling. During this drying out period, I would leave the tv unplugged and unused so that it has the greatest chance of evaporating everything under the screen. There really isn't too much else you can do unless you want it repaired quickly and then you will have to pay, but after the week or so you might end up paying anyway if just letting it sit and dry doesn't help. Your choice on what to do, let me know if you want anything else, thank you

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    I will also warn you that it may be possible that the drying out and cleaning may not work and that whatever you used to clean the tv might have wrecked those areas and need further work but I would definitely try the drying first and see if it helps.

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  • Master
  • 2,267 Answers

I would not think the spots are from the way you are cleaning the screen but rather a circuit failure.

Posted on Apr 10, 2008

  • Jaime Hernandez Apr 10, 2008

    Those spots could be generated in the digital control board or even the due to a power supply.

    How old is your TV?

  • Jaime Hernandez Apr 10, 2008

    This TV still under manufacturers warranty, so I would suggest to call the manufacturers to get them to fix.

    Here is their website to call them.

    Good Luck.

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.



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