Path: utzoo!attcan!uunet!dino!ux1.cso.uiuc.edu!aries!forbes
From: forbes@aries.scs.uiuc.edu (Jeff Forbes)
Newsgroups: sci.electronics
Subject: Re: Life of LCD Panels
Message-ID: <1990Jun29.142204.23688@ux1.cso.uiuc.edu>
Date: 29 Jun 90 14:22:04 GMT
References: <25269@unix.cis.pitt.edu> <3922@memqa.uucp>
Sender: usenet@ux1.cso.uiuc.edu (News)
Reply-To: forbes@aries.scs.uiuc.edu (Jeff Forbes)
Organization: School of Chemical Sciences, Univ. of Illinois at Urbana-Champaign
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In article <3922@memqa.uucp> r91400@memqa.uucp (Michael C. Grant) writes:
>LCD is difficult to work with, because it must be driven by an AC voltage,
>or else it will quickly degrade. 
>....
>	Sure, this DC potential is quite small, but I assume that it is
>enough to cause the degredation of the cells over a long period of time.

What is the failure mode for LCD displays? The liquid crystal certainly won't
degrade due to a DC voltage being applied, all they do is line up with the 
field. 



Jeff Forbes
Factotum of Od