A lot depends on the formulation of the liquid in the display. In general,
the liquid crystal will start going "isotropic" at around 50 deg C. This is
when it starts turning black. Some displays will go earlier or later. It
will get progressively black as temperature goes up. Most displays can
withstand up to about 150 deg C without damage, but this is a cumulative
process. Continued exposure to high temps will degrade the display. If you
go above ~150 deg C, the display will be permanently damaged. Cold temps
should not harm the display unless you freeze it; that usually cracks the
glass.
Ok, back to software...
/// Chris Terwilliger
/// Motorola - iDEN Software Development
/// office: 954-723-5318
/// mobile: 954-325-0345
/// [EMAIL PROTECTED]
/// http://www.idendev.com
-----Original Message-----
From: Campbell, Todd [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 21, 1999 12:33 PM
To: '[EMAIL PROTECTED]'
Subject: RE: Palm Temperature Limit
> Well, since every Palm has a Dragonball CPU, you can at least
> use it's specs
> for a guide. If you exceed these, you WILL have problems.
>
> Dragonball (MC68328)
> Maximum Operating Temperature (Ta) = -0 to 70 �C
> Storage Temperature (Tstg) = -55 to 150 �C
Good point.
> Other components in the Palm will be different.
>
> In reality, the display will have a much narrower operating
> range. LCD's
> will slow down and become non-functional at low temps and
> will go completely
> black at high temps. Note that the Palm will still be
> functioning, you just
> can't see what's happening.
If a palm's display goes black due to heat, will it be damaged?
Thanks,
Todd Campbell
[EMAIL PROTECTED]
