Provided is an electronic device including a substrate, a pixel located on the substrate and defined by a bank layer, and a multilayer protection film placed on the pixel and composed of multiple layers including at least one organic layer. The thickness of the first organic layer of the multiple layers forming the multilayer protection film satisfies T≧k×H×W where T represents the thickness of the first organic layer, H denotes the height of the bank layer, and k is a constant that is varied according to flowability or viscosity of the first organic layer.