> e-ink displays have not really improved significantly in terms of resolution and refreshing speed. When we started using E-Ink displays in 2010, we were gett

> e-ink displays have not really improved significantly in terms of resolution and refreshing speed. When we started using E-Ink displays in 2010, we were getting 6" 800x600 panels. In 2017, we're using (standard, not top of the line) 1600x1200 6" panels with significantly better white. You can put the old and new panels side by side and see the difference. There's a wide variety of sizes. There's also the Spectra black,white+red displays which I haven't played with yet. http://www.theverge.com/2013/5/23/4358326/e-ink-spectra-color-electronic-paper-shown-off http://www.theverge.com/2013/5/23/4358326/e-ink-spectra-colo... Refresh speed. E-Ink panels don't need refresh. Update speed is a bit better. You can do animation. Yotaphone used that for mirroring the LCD on E-Ink. https://www.youtube.com/watch?v=NZoTfd7MzKs https://www.youtube.com/watch?v=NZoTfd7MzKs