A display device includes a substrate, a driving circuit, an E-paper display layer and a protective coating layer. The driving circuit is arranged on the substrate. The E-paper display layer is disposed on and driven by the driving circuit. The protective coating layer is coated on and in contact with the E-paper display layer. The protective coating layer can provide protection and better optical performance, and it is advantageous to the manufacturing method to overcome the problems such as bubbles and low light transmittance occurring in the conventional manufacturing method.