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From: jst@cca.ucsf.edu (Joe Stong)
Newsgroups: comp.sys.laptops
Subject: Re: ACTIVE MATRIX, how fast is it??
Keywords: active matrix, lcd
Message-ID: <3401@ucsfcca.ucsf.edu>
Date: 4 Apr 91 10:30:50 GMT
References: <789@philica.ica.philips.nl>
Reply-To: jst@cca.ucsf.edu (Joe Stong)
Organization: University of California, San Francisco
Lines: 19

In article <789@philica.ica.philips.nl> reneb@ica.philips.nl () writes:
>I want to buy a notebook computer and want a FAST an crisp display.
>* What exactly is 'active matrix' and how fast is it (e.g. in terms of
>  refresh rate).

My question is not so much about refresh rate, so much as it is
about the time for a pixel to go (90%?) dark, and time for a pixel
to go light.  I kind of think the screens refresh as fast as the
technology needs to have them refresh, but the problem is the
response speed of the liquid crystals.  I'd like to see a screen
that's readable during scrolling.  They seem to scroll much faster
than they can "settle".

No, I don't like long-persistence phosphors, either.  I suspect if
you could get these two numbers into the 5 millisecond range, the
display would look good in motion, right now, it looks like they
are in the 60 millisecond range.

	Joe Stong   jst@cca.ucsf.edu