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Re: Display

If you can use sunlight to light the LCD (like my old ancient Sanyo
MBC-16LT2, 8088 Laptop, you don't need backlighting, and the power
consumption goes down during daylight hours.  Might be hard to find that
sort of LCD screen architecture, granted, but I've never found a better
laptop for programming portably (no HD, but it'd run 8 hours of text
editing on a charge, just save to floppy occasionally;  try THAT with
today's 2-hour machines.)  It was beautifully clear CGA 80x25 text in
the park I usually went to to program, in direct sunlight or in bright
or dim cloud conditions the display was EASY to read (only time I had
seeing it was when it got dark!)  Still have the machine, but 2 720k
floppies isn't optimal for me nowadays (I get along with the PC110 just
fine.)

  With reflected lighting (& additional [super-bright LED, or
Flourescent?] lighting turned on as needed,) you can use sunlight to
make the display exactly as bright as the day outside is (or use a
concave mirror to make it even brighter.)  See-through LCD with a
backlit diffuser screen behind it, maybe?

  Mark Willis
  

Tim Gray wrote:
> 
> the ldc backlight is low in intensity compared to sunlight. the reflection
> would be severely washed out due to the stray light making it back in, and
> just plain old overwhelming it.  I tried messing around with an lcd this
> way..  a nice sunny day wipes it out .. Now if we can evenly backlight it
> with a nice bright source, but then the power consumption will go up along
> with heating problems.
> 
> -----Original Message-----
> From: R. Paul McCarty <>
> To:  <>
> Date: Friday, May 01, 1998 9:24 AM
> Subject: Re: Display
> 
> >Tim Gray wrote:
> >>
> >> Ummm, having a see through lcd color or monocrome is futile...  black
> text
> >> on a dark background creates headaches
> >
> >Black text on a dark background?
> >
> >> see through HMD have to be a
> >> light source in order to be useable in the real world.
> >
> >The back lighting in an LCD display makes it a light source, I don't see
> >how it makes a difference for trying to reflect the display, but
> >obviously for a reflective surface and bouncing the display around, you
> >need a much brighter display then when you are just looking at the
> >display directly. But I thinks its doable.
> >
> >-Paul
> >
> >--
> >R. Paul McCarty / DARS Coordinator /  / x52059
> >317 Lattimore Hall, University of Rochester, Rochester, NY 14627
> >Computers don't make errors; what they do, they do on purpose.-Dale/KOTH
> >

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