Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!ucsd!sdcsvax!ucsdhub!hp-sdd!hplabs!hp-ses!hpcuhb!hpda!hpdslab!hpdsla!garye
From: garye@hpdsla.HP.COM (Gary Ericson)
Newsgroups: comp.society.futures
Subject: Re: Projection as screen replacement
Message-ID: <400013@hpdsla.HP.COM>
Date: 26 Jan 89 23:58:26 GMT
References: <8901251244.AA16340@taux01.UUCP>
Organization: HP - Pacific Technology Park
Lines: 18

> / hpdsla:comp.society.futures / orr@taux02.taux01.UUCP (Orr Michael) /  8:45 am  Jan 25, 1989 /
> does anybody know of any attempt to use a projection system instead of
> a screen ? seems to me you could have a tiny LCD-shutter and project
> through it.
----------

I've wondered about this myself.  One of the problems with a large LCD screen
is that the yield on LCD's bigger than maybe 13" is currently lousy.  If you
could project the LCD-generated image to a larger screen, the LCD panel itself
wouldn't have to be very big.  

What I don't know is what the lower bound is these days on the size of LCD 
"pixels".  I.e., if I want a 1Kx1K pixel display projected from an LCD panel,
I'd have to have 1Kx1K LCD pixels in a very small area.  Does anyone know how
small LCD dots can get?

Gary Ericson - Hewlett-Packard, Workstation Technology Division
               phone: (408)746-5098  mailstop: 101N  email: gary@hpdsla9.hp.com