[colug-432] Freezing LCDs

[Rick Hornsby]

On Jan 5, 2014, at 6:40 PM, Rick Hornsby <richardjhornsby at gmail.com> wrote:
> 
> On Jan 5, 2014, at 6:23 PM, jep200404 at columbus.rr.com wrote:
> 
>> What is the temperature below which one becomes concerned about 
>> LCDs being damaged by freezing?
> 
> You might try poking around on element14.com (though the site seems to be down right now).  Lots of industrial and electronic design engineers use that site, so I’d guess that the question you pose has been asked and answered there.  In fact, I’d bet that a friend who works [for the company behind the site] has tested this very thing.  I’ll ask him.

This is the answer I got back:

> They get very slow below -20C, but the backlight helps to warm it up within 5 minutes or so.  The ones we used to use were rated to -40C (Sharp).  The ones we use now are rated to -30C (Hitachi).  We were told the cells that hold the liquid crystal would rupture if frozen below rating.  I took some to -50C and there was no sign of damage.