The Kansas City Humanism Meetup Group Message Board › OT - Electronic Ink
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Kansas City, MO
OK, I know this is off topic, but we were discussing the Kindle Sunday at Planet Sub. The display on a Kindle is not an LCD of any kind. It is sheet in which is suspended about a zillion tiny microcapsules.
"Electronic paper was first developed in the 1970s by Nick Sheridon at Xerox's Palo Alto Research Center. The first electronic paper, called Gyricon, consisted of polyethylene spheres between 75 and 106 micrometres across. Each sphere is composed of negatively charged black plastic on one side and positively charged white plastic on the other (each bead is thus a dipole). The spheres are embedded in a transparent silicone sheet, with each sphere suspended in a bubble of oil so that they can rotate freely. The polarity of the voltage applied to each pair of electrodes then determines whether the white or black side is face-up, thus giving the pixel a white or black appearance."
The paper requires no electricity except when changing the screen, so a Kindle can get like a week of use on a charge if the wireless part is not turned on.
Sorry for the OT,