E Ink is a popular type of electronic paper display technology, characterized by high visibility and contrast, a wide viewing angle and low power requirements. It is processed into a film for integration into electronic displays and has enabled novel applications in phones, watches, magazines, wearables and e-readers, etc.
E Ink paper advantages:
1.Power Less. Eink paper is the “Bi-Stable” state, images on E Ink paper will be hold on without any power, this means that the display is consuming power only when something is changing. That is, the E Ink paper consume much less power, and, you can throw it anywhere when do not need to change the image on it. That is why the E paper price label popular used in Wal-Mart:
2. Comfortable Reading. The E Ink paper is “reflective displays”, ambient light from the environment is reflected from the surface of the display back to reader’s eyes, which make it more comfortable for the reading.
And of course disadvantages:
1.Low Refreshing . Can only act as “paper”, but No for video display.
2.Ghosting Effect. A shadow of an image may be visible after refreshing parts of the screen, er, actually the same problem of “low refreshing”
Anyway, it would be another choice for displaying in your projects. Consider the follow E paper modules in your next hardware projects: