A distortion correcting circuit for correcting vertically asymmetric distortion while achieving reduction in circuit scale and a display apparatus equipped with the circuit are provided. The frame unit includes a left frame and a right frame respectively around a user’s eyes, a connecting member detachably connecting the left frame and the right frame, and lenses assembled on the left frame and the right frame. The method of fabricating the flange tabs and flanges on the assemblage and the expanded core structure. The object may be a mechanical device such as a door or a bed. The generated ultraviolet radiation is guided from the first portion along the nanowire toward the second portion, so that a region of the polymer coating on the second portion is polymerized and bonds the nanostructure to the nanowire. In them, the second conductor layer 29 comprises the first resin insulating layer 7, the electroless plating layer 33 formed on the first filled via 19, and the electrolytic plating layer 37 composed of plating particle of substantially uniform size, formed thereon.