Digital dash

[Frederic Breitwieser]

For my particular purposes, the display will be driven by a PC (PC104 system
board), and be the EFI as well.  Almost have a car running on it.  No ALDL
necessary :) 

-----Original Message-----
From: Swayze
To: diy_efi at diy-efi.org
Sent: 4/26/00 6:52 AM
Subject: Re: Digital dash

with a laptop, I believe you would be able to pull the gauges info from
the aldl data stream. please keep me posted.

byE
Mike
Swayze
mswayze at truswood.com
kswayze at bellsouth.net

----- Original Message ----- 
From: "Frederic Breitwieser" <frederic at xephic.dynip.com>
To: <diy_efi at diy-efi.org>
Sent: Wednesday, April 26, 2000 12:17 AM
Subject: Re: Digital dash


> > most of the aircraft HUD stuff i surfed looked like the actual
gauges were remoted with mirrors. doesn't make sense to me, but a
plasma(?) display might not wash out so bad. do they even make them
anymore?
> 
> Plasma displays have changed since the days of Toshiba and Compaq
> laptops that had them.  Or luggables I should say.  The new Phillips
> wall-mounted 72" wide Plasma TV is an example of the newer technology.

> From the research I've done over the last six months, the older style
> monochromatic (or grayscale) plasma displays are no longer made - now
> that LCD displays have come down in price below what the plasma
displays
> were.  Also, at that threshold in time, when the switch was made
(1989,
> 1990 or thereabouts), color LCD's were becoming affordable.  Plasma
> displays were expensive, and had already reached their lowest price
> point.
> 
> My problem with a laptop display of any sort is such that its too big,
> and won't fit between the steering column and the top of the dash,
which
> in my mid-engine car design, will be about six inches, tops (plus the
> thickness of the dash, I'm talking usable space here).  However,
> something that occured to me this evening, after reading several
> messages, is why not stick the display in the dash, but flat on its
> back, facing up.  Then, place a mirror in front of it, angled forward,
> so the display is reflected backwards to the driver.  Put a polarized
> filter/acrylic/glass plate in front of the mirror, parallel to the
> driver's eyes, keeping the unpolarized light out, hence the glare.
This
> would make for a nice display.  of course, a standard VGA color LCD
> display would look "squashed" and be a upside down image (thanks to
the
> mirror), but nothing a little clever programming couldn't resolve. 
> Then, one could use a much larger display, and shove more gauges on
> there.  If the ratio of display to mirror was 1:2, you'd have to draw
a
> twice has high oval (compared to its width) to make it appear "round"
in
> the mirror, and draw it upside down.
> 
> I'll have to experiment with this, I have an old laptop with a
1024x768
> color display I could use.  Would be a lot easier than fangling up a
> quad NTSC VGA card :)
> 
> 
> -- 
> 
> Frederic Breitwieser
> Xephic Technology
> 769 Sylvan Ave #9
> Bridgeport CT 06606
> 
> Tele: (203) 372-2707
>  Fax: (603) 372-1147
> Web: http://xephic.dynip.com/
>
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