> Does anybody know the actual name of that LCD technology that produces a 
> monochrone display of light blue and dark purple? (And, incidentally, is 
> usually scored with horizontal or vertical lines that shouldn't be 
> there...)

You mean like this?

http://www.crystalfontz.com/phpthumb/phpThumb.php?id=806

It's a transmissive passive matrix TN display.  Same as you get in 
calculators or watches, except it controls the amount of light that can come 
through from the backlight, rather than how much is reflected.  The blue is 
because when the pixel is "off" it's only tuned to block out green light 
(the brightest wavelength), so some blue (and a bit of red) manage to get 
through.

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