After trying Google, McMaster, and lots of others: Is there a see-through (thin) mesh that can be fastened to the back of a steel panel using conductive epoxy around the perimeter? Preferably something that can't rust.
It is to protect a LCD from getting hit by strong fields or really big ESD zaps. Currently there is only some kind of poly film 1/10th" away from the LCD (doesn't touch). It's ok if the translucent properties aren't top notch since the LCD is back-lit pretty well.
-- Regards, Joerg http://www.analogconsultants.com/
This article;
mentions Indium-tin-oxide coated film being opticall transparent with a coating of less than 8um
EMIclare is mentioned. Google finds distributiors. Seems to be available in glass or polycarbonate.
Provided the viewing aperture in the panel isn't huge, you have a reaonable overlap between the screen and the steel panel, and the display is a display is a couple of mm back from the screen you could use a non-conducting adhesive and rely on the screen to panel capacitance.
I'm dubious about conductive adhesive but I'd like to hear about a source of it that is cheap and actually sticks things well.
Bob
Thanks, Bob. Very interesting. The gasket method won't work well here because the LCD sticks out but doesn't overlap enough.
Meantime I found one interesting company, will contact them Monday. In case anyone else is running into such issues:
There is also Optolite (Keyflex) but that seems to be available only in AU/NZ.
-- Regards, Joerg http://www.analogconsultants.com/
John
Anthony Fremont had a good link and there I found "the" stuff:
Only about 20 miles from you guys (or 60-120 Bay Area minutes on your freeways...). Sorry for splintering up this thread. First post went to a NG in another language and I did a cancel the second it showed but on usenet that's too late.
-- Regards, Joerg http://www.analogconsultants.com/
Wow, 'optical grade, precision stainless steel'. Wonder if I could make lenses out if it?
Cheers,
Phil Hobbs
Yes indium-oxide, a yellowish material is usualy built up as a layer in the overlay and tied to GND. I've also seen small mesh Stainless or steel screen used in front of LED displays.
Cheers
(thin) mesh that can be fastened to the back of a
that can't rust.
zaps. Currently there is only some kind of poly
properties aren't top notch since the LCD is
overlay and tied to GND.
displays.
Yep, the stainless steel is what we are going to do. Now I have to find a really reliable conductive epoxy that cures without heat. Found Loctite 3882, no info on their site so I just wrote to them. Let's see.
(thin) mesh that can be fastened to the back of a
that can't rust.
zaps. Currently there is only some kind of poly
properties aren't top notch since the LCD is
-- Regards, Joerg http://www.analogconsultants.com/
overlay and tied to GND.
displays.
really reliable conductive epoxy that cures
them. Let's see.
The latest silver based epoxies are pretty good. I've used something in the past (cant remember which one, Loctite or Masterbond) and it had very good electrical and bonding properties.
Cheers
"Martin Riddle" wrote in news:9_Rmj.1394$w66.491@trndny06:
Came across that tonight. Saved the page to check it out in detail, it looks like a goer. Another firm worth a look is Abatron. Not sure if theirs is conductive though. Last time I had something from Loctite it was not inspiring, called 'Output Kit', a very viscous coarse epoxy bought from Maplin. I'm sure they do better though, but I want to find out more general info before asking one firm for details.
:After trying Google, McMaster, and lots of others: Is there a :see-through (thin) mesh that can be fastened to the back of a steel :panel using conductive epoxy around the perimeter? Preferably something :that can't rust. : :It is to protect a LCD from getting hit by strong fields or really big :ESD zaps. Currently there is only some kind of poly film 1/10th" away :from the LCD (doesn't touch). It's ok if the translucent properties :aren't top notch since the LCD is back-lit pretty well.
Remember those anti-glare screens we used to fit to the front of our green phosphor monitors. They had an earthing strap so they were anti-static as well. I found one and the mesh is definitely conductive. Cut the mesh out and perhaps this is an option.
This mob:
Regards, Allan
overlay and tied to GND.
displays.
really reliable conductive epoxy that cures
them. Let's see.
past (cant remember which one, Loctite or
That's one of the companies I have on a list to call on Monday.
-- Regards, Joerg http://www.analogconsultants.com/
The challenge at this point will be to get them on there, since there already is a poly front film.
-- Regards, Joerg http://www.analogconsultants.com/
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