An additional bonus is that unlike conventional
backlit flat panel displays, e-paper displays reflect light like ordinary paper.
This means it reflects light, just like paper, making it generally more comfortable to read and providing a wider viewing angle than in the case of conventional
backlit flat panel displays, which are light - emitting.
This means EPDs are inherently low - power and is one of the main differentiators to conventional
backlit flat panel displays, where a constant power supply is required to maintain content.