Explanation – The Amazon Kindle uses electronic ink (E Ink) displays. An E-ink display is a screen that aims to replicate the experience of reading and writing on paper. The screens work by using tiny microcapsules. They consume less power compared to LCD and OLED displays. They cause less strain on the user’s eyes. They have slow refresh rate compared to LCD and OLED displays. This makes them unsuitable for video or animation. They have limitations of colour and resolution compared to other display technologies. They are being used at bus stop displays, walking direction signs, and some restaurants’ menu boards.

Source: Forum IAS