Electronic paper was first developed in the 1970s by Nick Sheridon, caring story research center of logistics package l c electronic piece of paper the first rok called Gyricon consists of a circular enclosure t lean size between 20-100 micrometre each sphere consists of black plastic with a negative charge at one side and a white plastic with prachubuak on the other side of this sphere are embedded in a transparent silicone sheet, each child will punch it in the sponge. It can rotate freely. The condition of the anode voltage to electrical connectors for each pair. Determines whether the white or the black side facing upward and that will make the pixel appear black or white.
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