What is e-ink on e-readers like kindle? How does the technology compare to a regular screen?
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It’s electrically controlled pigment. Imagine a page that you could control whether or not there’s ink on a spot by running electricity.
In an LCD screen, there’s an always-on backlight, and then that comes through Red, Green, and Blue filters based on if they’re open or not by an electrical signal. To have any visual, you have to have light coming out.
With e-ink, the only light that you see is reflected from the environment. You don’t have a giant flashlight of a screen in an otherwise dark room.
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