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> > I wonder if anyone experimented with one of those ThinkPads > > that were made to be used with an overhead projector. Slide > > While I haven't seen a CV machine, I did used to have an LCD TV > with a similar arrangement - active LCD screen with a > transparent rear. [snip] > goes through three layers of LCDs. So unless you can get the > angles just right, most of the time the light reflecting off the > screen is as bright as or brighter than the light going through > the screen. But presumably this TV didn't have a built-in backlight. I'm suggesting a laptop which uses *both* its usual backlight *and* some supplemental ambient or solar light, for example by making the back plastic translucent. Surely this has to be at least as good as the comparable machine without the translucent back! - David