Sawyer is basically correct, except E-Ink currently uses a dual partical system. So, instead of white particles in a blue dye, there are positively charged black particles and negatively charged white particles, in a transparent oil. It is a small point, but it allows the displys to get true black and white, and better contrast between states.
But, the display is image stable, and reflective, so unlike an LCD, OLED, PLASMA, or just about anyother display technology out there, it only uses electricity when it switches. And Epson is able to use the power in the RFID field to not only figure out what the update should be but also to update the display
The phone has 256MB of RAM and a 1GHz processor, which do the job reasonably well, though the Anna interface will likely leave something to be desired for many smartphone users.
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Sawyer is basically correct, except E-Ink currently uses a dual partical system. So, instead of white particles in a blue dye, there are positively charged black particles and negatively charged white particles, in a transparent oil. It is a small point, but it allows the displys to get true black and white, and better contrast between states.
But, the display is image stable, and reflective, so unlike an LCD, OLED, PLASMA, or just about anyother display technology out there, it only uses electricity when it switches. And Epson is able to use the power in the RFID field to not only figure out what the update should be but also to update the display