Quote:
Originally Posted by Begemot
However, after a few days with Nexus 7 it is simply unusable for more than 10-15 minutes as my head starts to hurt from the glare.
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What is "the glare"?. Is it the strong light from a backlit screen or is it mirror-like reflection of surrounding lights?
Where do you read from the device? What is the ambient light level?
I know that many people, including myself, praise e-ink devices for not emitting light and thus being much friendlier for your eyes. The fact is, there is absolutely no difference between a photon that is emitted from an LCD backlight and photon that is reflected from a paper page or an e-ink screen. I know that the "white" light from an LCD is different than the white light from the sun. The light from LCD consists from a certain percentage of narrow frequency bands around Red, Green and Blue and white light from the sun has all the frequencies (still, with a fluorescent or even LED lightbulb the white is not really all-frequency-white ala sunlight) . There is also refresh frequency that is different (again this was much more an issue with early models of CRT monitors). But still, from a physics point of view, a photon is a photon when it hits your eye, no matter where it came from ...
*The* main difference between a passive e-ink and an LCD is in the level of ambient (surrounding) light. With an e-ink, tle level reflected from the screen is the same, or a little bit lower, as ambient light level. With LCD being read in the dark room, the screen is much, *much* brighter and that is the main thing that hurts your eyes [on a modern display].