>> I would be happy for now with a 640x480x1 bit display with awful
>>contrast ratio
>> if I didn't have to pay the power necessary to generate VGA and then
>
>I know this has been discussed before (what were some of the message
>subjects? I'd like to look them up in the archive...), but what would
>it
>take to build your own display? Even it was only mono. I'm sure there
It depends on the resolution. Take a look at the "moving sign"
schematics
on the internet for a few ideas -- those are bitmapped displays that can
be mechanically scanned. In fact, there are several schematics for
scanned
variants too! Very low resolution, but made with off-the-shelf LED
arrays,
though.
(virtual clock is a name sticking in my mind)
Of course, a full resolution mono display would just be a bigger version
of one of these displays -- harder to build with more connections (unless
multiplexed) but otherwise, very similar. A little creative engineering,
and
multiple shades of "gray" could be reasonable too.
A Hercules compliant HMD might have its uses!
>designs such as this one. Also, as far as experimental wearables are
>concerned, how far would we be able to stray from the standard
>VGA/NTSC
>hardware and protocols? Eliminating that and using a much cleaner
Why VGA specifically? Make it with one of the other "standards," i.e.
MDA, Herc, CGA, EGA, VGA, QVGA, SVGA, XGA, PGA, or
one of the numerous others I'm leaving out.
I'd be willing to bet that there is a single (or maybe double) chip set
that would do one of these standards, and that's pretty cheap.
It's only a guess, but I would say Hercules, being the best
monochrome graphics standard, and the standard of choice for DTP
and CAD stations (until SVGA got good and cheap), had a lot of
single chip options available.
>looking into this. Does anyone have any thoughts on this (however
>crazy it may be)?
Crazy is exactly where good ideas usually start. :-)
-- Chuck Knight
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