Archived posting to the Leica Users Group, 2009/02/03

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Subject: [Leica] Broken LCD Screen
From: jbm at (Jeff Moore)
Date: Tue Feb 3 19:25:08 2009
References: <> <>

2009-02-03-21:11:36 Ric Carter:
> all this broken screen talk is making the sapphire glass sound better

Well... it's making me wonder if it'd be better or worse. I'd expect it
to be far more resistant to scratching, as advertised -- but that's an
entirely different quality from toughness, resistance to shattering.
Often materials which are harder and more resistant to scratching
or wear are also more brittle. Just ask metallurgists, for example
those coming up with steel for knife blades, what they've always been
fighting with; or (to dive back to a favorite/hated LUG subject but one
that much more directly applicable here) folk familiar with different
watch-crystal materials. Sapphire crystals are beautifully resistant to
scratching (unless there's a softer optical coating on top), but they
can chip if subjected to a sharp knock.

It'd be great if there were someone from whom we could get a straight
answer about the resistance of the new sapphire screen to cracking
relative to the old, instead of just theorizing. It'd depend on the
material, and on whether any changes had been made in thickness, shape
or mounting.


Replies: Reply from grduprey at ( ([Leica] Broken LCD Screen)
In reply to: Message from freakscene at (Marty Deveney) ([Leica] Broken LCD Screen)
Message from ricc at (Ric Carter) ([Leica] Broken LCD Screen)