scott wrote:
>> I'm guessing moisture would be seriously suboptimal here?
> 
> Yes, even absolutely tiny amounts will make the LC useless.

Really? I thought it might just make the edges go a bit fuzzy or 
something...

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>> Yes, even absolutely tiny amounts will make the LC useless.
>
> Really? I thought it might just make the edges go a bit fuzzy or 
> something...

Something to do with how the moisture gets absorbed by the LC, of course it 
starts from the edges wherever there is the "leak", but it quickly spreads 
across the whole panel until you don't get any picture.  I suspect the water 
molecules are severely impacting on the electrical/optical properties of the 
LC, and given that you're talking about a thickness of a couple of microns 
you don't need many water molecules to mess things up!

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scott wrote:
>>> Yes, even absolutely tiny amounts will make the LC useless.
>>
>> Really? I thought it might just make the edges go a bit fuzzy or 
>> something...
> 
> Something to do with how the moisture gets absorbed by the LC, of course 
> it starts from the edges wherever there is the "leak", but it quickly 
> spreads across the whole panel until you don't get any picture.  I 
> suspect the water molecules are severely impacting on the 
> electrical/optical properties of the LC, and given that you're talking 
> about a thickness of a couple of microns you don't need many water 
> molecules to mess things up!

I was under the impression that a liquid crystal is an organic molecule 
dissolved in water. So I'm guessing changing the concentration is going 
to fairly radically alter the optics of the material, and possibly even 
turn it from a liquid crystal into a plain ordinary liquid.

Then again, I don't design LCDs for a living. ;-)

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