On 7/15/2010 5:45 PM, Orchid XP v8 wrote:
> I pressed on the glass, and I think I squashed it. (At least, it's
> stopped moving around now.) But now it's stuck in the middle of the
> screen. Great.
>

Why on earth would you squish it - it's only going to be in your way.

I was going to reply to your original post - 'at least it didn't die', 
then I read this one.

We had a laptop that had that - It took about 3 years before the thing 
decomposed enough to not cause an eye sore.

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Tom Austin wrote:

> Why on earth would you squish it - it's only going to be in your way.
> 
> I was going to reply to your original post - 'at least it didn't die', 
> then I read this one.

Well, a stationary black dot is slightly less irritating than a moving 
black dot. (But only slightly...)

> We had a laptop that had that - It took about 3 years before the thing 
> decomposed enough to not cause an eye sore.

I'm just trying to figure out how the **** the critter got *in* there in 
the first place! >_<

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> I pressed on the glass, and I think I squashed it. (At least, it's stopped 
> moving around now.) But now it's stuck in the middle of the screen. Great.

Haha, I'm surprised it could get in there (usually that gap is sealed as 
best possible to stop dust getting in), but surely if you try to open it up 
you will get all sorts of dirt and dust in there (unless you happen to have 
a cleanroom) so it will probably look worse.

Just make a desktop wallpaper to cover it up :-)

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scott wrote:

> Haha, I'm surprised it could get in there (usually that gap is sealed as 
> best possible to stop dust getting in)

That makes two of us.

It seems to be between the LC layer and the backlight, but it's hard to 
tell. It might be between the glass and the LC.

> but surely if you try to open it 
> up you will get all sorts of dirt and dust in there (unless you happen 
> to have a cleanroom) so it will probably look worse.

More importantly, if I take it apart it will never, ever go back 
together again.

> Just make a desktop wallpaper to cover it up :-)

Gee, thanks. :-P

I got a zero dead pixel guarantee, but it didn't say anything about 
small insects crawling inside the machine. >_<

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> It seems to be between the LC layer and the backlight, but it's hard to 
> tell. It might be between the glass and the LC.

I can promise you it's not between the LC and the glass!  The LC is a few 
microns thick sandwiched between two layers of glass and sealed around the 
edge to stop any moisture getting in - ever.

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>> It seems to be between the LC layer and the backlight, but it's hard 
>> to tell. It might be between the glass and the LC.
> 
> I can promise you it's not between the LC and the glass!  The LC is a 
> few microns thick sandwiched between two layers of glass and sealed 
> around the edge to stop any moisture getting in - ever.

I'm guessing moisture would be seriously suboptimal here?

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> I'm guessing moisture would be seriously suboptimal here?

Yes, even absolutely tiny amounts will make the LC useless.

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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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