Digital dash

[Matt Cramer]

	Before putting too much trouble into designing something like this, you
might want to see if you can read an LCD display through a polarizing
filter.  LCD displays use several polarizers in them already.  I can't
remember which way they're oriented, but it's possible this setup might
make the screen completely unreadable, or require a polarizer angle that
won't do much to keep out glare.

Matt Cramer

At 12:17 AM 4/26/2000 -0400, you wrote:
[snip]
>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.
[snip]
>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
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