Question about Insignia IS 20" TV040919 TV
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?
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
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
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
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Posted on Jan 02, 2017
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