An electronic device such as a portable phone has a casing, a display element provided in the casing, and a panel attached to the casing to cover the display element. A half mirror layer and a shading layer are formed on the panel. An opening of the shading layer is above the display element. The surface of the panel is seen in a substantially continuously uniform color when no electricity is supplied to the display element, and a display produced by the display element can be seen through the panel when electricity is supplied to the display element.