E Ink is one of those initially promising technologies that ultimately has lived a bit of a disappointing life. After the introduction of the original E-reader devices such as the Amazon Kindle, we were promised a future of all signage being replaced with readable, but electronically controllable E Ink displays. Even color E Ink displays teased us with very limited product rollouts.

However, E Ink has not been a magical cure-all. Lower demand and more difficult production methods mean that the cost of these displays remains much higher than other commodity technologies like LCD. Additionally, even though E Ink has substantially improved from the first E Ink displays, refreshing the display remains a slow process and a deal breaker for applications such as notebooks and tablets.