Notion Ink ADAM: iPad Wounder, Edge Killer?

Originally Posted by mrspaceman

the PixelQi screen looks like an e-ink screen, it will probably still be refreshing at 60-70Hz (or so).

Originally Posted by MichaelV

they are 2 different animals. pixel qi in not e-ink. still hurts on the eye... e-ink is like ink.

Contraversy to what most people think, the real danger of LCD is the backlight lamp. Imagine flash light pointed to your eyes... it's exactly how LCD works. As I allready pointed somewhere, I had the problem with the eyes (low vision in evening and dark) and that were caused by LCD. Before LCD i used CRT (the real good one with 120hz refresh rate) 5 years\10 hours on computer daily and no any problem with vision.
The second problem with LCD backlight is *LAMP FLICKING*, contravercy to CRT (where we had image flicking), LCD image has no distructive flicking, but LAMP flicking around 60HZ and thats also bad for eyes. This problem were solved about 2 years ago, but there's still some LCD displays which used old lamp.
So pixelqi without backlight is safe enough for your eyes.
On other hand e-ink still have contrast problem. Contrast ratio on current e-ink (and especially on EE) is not safe for using by children, and if you an adult, than it's recommend to read in good light envoverment to save your vision.