Quote:
Originally Posted by geekmaster
@andyh2000: Thanks for the photo that shows what I was trying to describe. That "multiple pixels per bead" thing is something I hadn't seen before. Perhaps that is used on the new higher-resolution Paperwhite kindle. Awesome! 
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I thought it was the other way around, with multiple 'beads' per pixel, but it looks like it's rather one bead/pixel.
That
eink link claims that 'Electronic ink is made up of millions of tiny microcapsules, about the diameter of a human hair.' Now, the diameter of human hair varies a lot, but 75μm seems like a
reasonable estimate. The Paperwhite is supposed to have a 212ppi display, which would mean 120μm/pixel - larger, but the same order of magnitude as a hair's breadth.