E-Paper displays(EPD), also referred to as E-Ink displays, are extremely low power, monochrome displays which are designed to look like ink on a piece of paper. They are reflective displays meaning they have no backlight and therefore use very little power. The content on the display can be viewed in full sunlight and at very wide viewing angles.
Many electronic paper technologies hold static text and images indefinitely without electricity. Flexible electronic paper uses plastic substrates and plastic electronics for the display backplane. Applications of electronic visual displays include electronic shelf labels and digital signage, time tables at bus stations, electronic billboards, smartphone displays, and e-readers able to display digital versions of books and magazines.