Quote:
Originally Posted by badbob001
Are you telling me that if I look at an apple directly with my eyes and then at a video feed of the same apple, the latter is less noisy and requires less work for my brain? No wonder I tend to fall asleep in front of the TV.  |
Depends, but in the text context, certainly textured, yellowed, [or greyed e-ink] is a much noisier image than with a good screen. In any case, refresh is a misnomer with respect to LCD (unlike CRT)... barring movement, the refresh speed itself is irrelevant compared to the GAP between light-to-light states and the way refresh occurs.
Quote:
Originally Posted by LtChambers
Demas, can you point me to quantitative data about what near-visible EM frequencies (not just visible light, also infrared and ultraviolet) are transmitted by popular reflective (eink and paper) and emissive (CRT, LCD) technologies? Also, if there's a split up between LED and CCFL LCDs, that would be helpful. I have a hunch that LED-LCDs are less straining than CCFLs, but I haven't tested it (anecdotally) myself.
You earlier posted that "light is light". I'd like to see the numbers to back that up. My eyes get strained reading LCD much more than eink and I can't understand that if your assertion is true.
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The reason there is no clinical study is because the technology is empirically trivial unsophisticated- and frankly- stupid, the tech outpaces the duration of a meaningful trial, and fundamentally all the experts acknowledge habit is the controlling factor.
If your eyes hurt more it is almost certainly due to poor reading habits.
Put another way, it's like asking doctors to run clinical trials on which burns the tongue more... convection heated water or microwave heated water. A scientist completely comprehends the lack of distinction between the effect of boiling hot water on human irrespective of the tech used to heat it... however, they might attribute more people getting burned by microwaved water because it doesn't always signal it's heat by bubbling the way convection heated water does. So the difference, if any, is completely explained by people chugging hot water... rather than sipping carefully.
The phenomena is completely understood.
Likewise, there's no voodoo to LCDs, they've been around for decades (longer than e-ink for that matter if you want to ascribe black magic to anything). ZERO experts advise dumping LCDs in favor of e-ink for the sake of your eyes, they ALL simply advise better viewing habits. Good habits, no worries.