Hi all
I was given a plasma TV with a cracked front pane of glass (the very front protective layer of glass, not part of the panel itself). I was able to disassemble and replace the glass without any problems, however, my concern is if it is now safe to use.
On the original glass, it had a copper band around the outside of the glass, and a grey plastic layer over the visible portion of the screen (unsure if this was conductive or not). It had a slight blue tinge to it.
I figured it could be one of a few things:
1/ A fine mesh acting as a EMC shield
2/ A polarizing filter
3/ A colour filter
4/ A special anti-reflective coating
5/ A combination of the above.
I'm not fussed about the colour accuracy or picture quality issues, just need to make sure that it is safe to watch - From a bit of reading it seems the only potentially harmful byproduct is UV light. The replacement glass is 4mm window glass, so should act as a filter for some/most of this. The other concern is if large amount of electromagnetic emissions are present. The copper around the edge suggests that some shielding was required, but whether this was just to pass CE/FCC reg's or it is actually needed for the safety of the viewer!
A second opinion would be appreciated!
Thanks
I was given a plasma TV with a cracked front pane of glass (the very front protective layer of glass, not part of the panel itself). I was able to disassemble and replace the glass without any problems, however, my concern is if it is now safe to use.
On the original glass, it had a copper band around the outside of the glass, and a grey plastic layer over the visible portion of the screen (unsure if this was conductive or not). It had a slight blue tinge to it.
I figured it could be one of a few things:
1/ A fine mesh acting as a EMC shield
2/ A polarizing filter
3/ A colour filter
4/ A special anti-reflective coating
5/ A combination of the above.
I'm not fussed about the colour accuracy or picture quality issues, just need to make sure that it is safe to watch - From a bit of reading it seems the only potentially harmful byproduct is UV light. The replacement glass is 4mm window glass, so should act as a filter for some/most of this. The other concern is if large amount of electromagnetic emissions are present. The copper around the edge suggests that some shielding was required, but whether this was just to pass CE/FCC reg's or it is actually needed for the safety of the viewer!
A second opinion would be appreciated!
Thanks
it's too OT but this article from Pop Sci -- forwarded to my by one of the engineers I work with -- should be of interest -- really putting plasma to work:
http://www.popsci.com/popsci/science/873aae7bf86c0110vgnvcm1000004eecbccdrcrd.html
http://www.popsci.com/popsci/science/873aae7bf86c0110vgnvcm1000004eecbccdrcrd.html
I would give a call to a local TV repair shop. have you tried the manufacure? they may have a help line. better safe then sorry.
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