Quote:
Originally Posted by Demas
btw, LtC, I missed your question between displays... LCD screens update independently of their backlights, florescent backlights use electronic ballasts and flicker at 20,000 Hz... no more onerous- if not better- than most of artificial lightning. LED backlighting uses direct current and doesn't flicker at all... in fact, better than incandescent light which you might be using to read reflectively.
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I asked about near-visible light because my hunch is that CCFLs produce energy outside the visible spectrum where LEDs might not. That's where opinions are pretty useless and data is everything. And I don't know details about what happens to light when it's reflected from various surfaces (specifically eink and paper). For all I know, the flickering light source could be reflected at a constant rate.