Abstract: An electronic device is provided, including an electronic element, and a protective substrate. The protective substrate includes a concave portion, and a flat portion. The concave portion has a concave surface and a convex surface that is opposite to the concave surface. The flat portion is connected to the concave portion. The electronic element overlaps the concave portion and is arranged under the convex surface.

Abstract: A hairbrush is composed of a plurality of straight-line teeth on top of a handle. The device is featured on that a modeling fringe is disposed on each of two lateral sides of the handle of the hairbrush so that a modeling plane is formed on each side respectively. A decorative piece is installed on each of the modeling plane. In accordance with the above-mentioned structure, each of the lateral sides of the handle forms a modeling plane so that there are more variations on the appearance of the hairbrush.