Quote:
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A computer screen, for instance, actively pumps streams of photons into the user’s eyes, whereas a printed page relies simply on ambient light being reflected passively from the ink and paper. Evidence suggests transmitted light is processed in a different part of the visual cortex from that handling reflected light. This may account for the tiredness people complain about after long stints of staring at a computer screen, and why passive E-Ink screens used on Kindle e-readers are preferred to conventional screens. - See more at: http://www.economist.com/blogs/babba....84pLqYP4.dpuf
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Not quite sure of his source but at least he offers a reasonably logical reason why some people prefer reflective displays, some prefer backlit displays, and some of us don't care.