There are two kinds of screen technologies: LCD and E Ink. Which is the easiest on the eyes? And why does it matter to the layperson? Geoffrey A Fowler and the Wall Street Journal tell us here.
Here is an excerpt:
The question isn't just academic. A battle is under way to replace a 550-year-old invention called the printed book, and the winning technologies could have a big impact on everything from how students learn to the way people read a novel at the beach.
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