From: utzoo!decvax!cca!FISCHER@RUTGERS@sri-unix
Newsgroups: net.works
Title: Re: Display resolution
Article-I.D.: sri-unix.2403
Posted: Mon Aug  2 11:47:27 1982
Received: Tue Aug  3 01:00:32 1982

From: Ron 
Another way to build really high resolution displays is to keep from
using a technology that requires refreshing the screen.

One way might be with plasma panels, which are effectively their own
memory.  Each dot on the display is similar to a neon bulb, with an
anode and a cathode and neon gas in the gap between.  Dots are turned
on with a short higher voltage pulse and then continue to glow because
of a constant background voltage.  The initial pulse ionizes the neon
in the gap, which then stays lit using the lower "maintaining" voltage.

I assume the problem with building a high resolution display with a
plasma panel would be that as the cell size goes down it gets dimmer.
I wonder what the practical limits are for the narrowness of the gap
between the cathode/anode in a plasma panel and or the closest spacing
between cells?  (do existing panels isolate the display cells with
walls of a dielectric?)  Or we might be limited by the amount of
energy to be dissapated in each cell (the glow of the glass panel
cannot be brighter than the cells in it...)

Or how about other technologies; liquid crystal and electroluminescent
to name two?  The Grid/Compass portable computer (or workstation if
you prefer) has an electroluminescent display of low resolution.

(ron)
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