VISIO XVT472SV display has Smokey shadows/stains

[FORD4THMK]

All,
Any idea what could be causing this issue (see attached pics)? Or is it the age of the display panel and the solution is to purchase a new TV?
https://www.cnet.com/products/vizio-xvt472sv/specs/
Tod

[dick_barton]

Re: VISIO XVT472SV display has Smokey shadows/stains

I've seen lcd panels go like that due to ageing. However if it comes from a home with heavy smokers then it may be nicotine behind the lcd panel or filter sheets.

[FORD4THMK]

Re: VISIO XVT472SV display has Smokey shadows/stains

Dick,
Thanks for the reply. No smokers here but it could be as you say a film behind the panel or filter sheets. Would you recommend disassembling and trying to clean it then putting it back together?
Tod

[cliff_hootarski]

Re: VISIO XVT472SV display has Smokey shadows/stains

Search the forum for "Mura", perhaps this is what you are dealing with.

[budm]

Re: VISIO XVT472SV display has Smokey shadows/stains

I have seen this problem before too, and it was bad LCD glass panel. I took the panel apart to check each layers and they are clean without any sign of stain or moisture, it will get worst with time.

[dick_barton]

Re: VISIO XVT472SV display has Smokey shadows/stains

I would agree that it's probably the Mura effect so I doubt you have anything to lose stripping down the panel and checking the reflectors, back of lcd panel etc are clean.
If you do strip it down then be careful to keep the order of the sheets so that they are reassembled exactly as removed.