Quote:
Originally Posted by fjtorres
The other thing that comes to mind is that front-lit eink devices can drive their brightness lower than most (if not all) LCD devices. (Front-lit eink displays can go to zero lighting and still be readable.)
The two most likely reasons for *some* people having issues with extended reading off LCD screens are the much higher absolute brightness and absolute contrast. It is possible to have too much of an otherwise good thing.
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Well ... if I had to make a guess then I would assume that non-lit eink-screens (and good old books) are relatively easy on the eyes because, unless a very close-mounted reading light is used, the screen does not stand out in brightness compared to its environments whereas it is possible (and quite common) to read on a self-lit display in a dark or dimly lit room where the display itself stands out as the brightest light source.
If it actually is this brightness-differential between screen and environments that causes eyestrain it should not matter whether an offending display is front- or back-lit.