BTW, do you know what is an electronic paper...? If it's very simple, the principle of operation is as follows: we take a thin sheet of special material and place capsules on it. They contain black and white granules that float in a transparent liquid. When a charge hits this sheet, some granules rise up, while others, on the contrary, are pressed against the substrate. Depending on the charge, we see either the white or black edge of these capsules — this is how the image is constructed. Personally I've read the ITIL foundation [PDF] book usind this kind of electronic paper.
Watch here:
ITIL foundation [PDF]
https://forum.ixbt.com/users.cgi?id=info%3A%3E1597153
