> We could have had large form, glossy brochure quality displays with video refresh rates by now Based on what principle? It strikes me as most of the comments

> We could have had large form, glossy brochure quality displays with video refresh rates by now Based on what principle? It strikes me as most of the comments here lack a basic understanding of the physics behind electrophoresis. It is an inherently slow process. > ...or more than 16 levels (4-bit) of grayscale, something that a hobbyist has already shown is possible: a simple google search showed me that you're quite badly mistaken. 5-bit grayscale or 32 levels is widely used. Just google nxp 6sololite 5-bit eink and you'll find "Up to 5-bit pixel grayscale representation" and has been for 5 or 6 years.