Before the technical, some general information. E-ink display are found in a lot of e-readers, some mobile phones and similar devices and the intent is to provide a reading experience closer to that of ink on paper than conventional LCD displays deliver. E-ink screens are not backlit and require light falling on them in the same was as reading a book does; reducing eye strain during long reading sessions. An e-ink page is also persistent (does not need power to maintain the text) and power is only required for changing text on the page. The persistent nature of the pages leads to longer times between charging.
...