Manufacturing method of input device

The object of the present invention is to provide an input device, which suppresses the increase of wiring resistance as compared with the prior art. The input device includes: a transparent substrate (2); a first wiring layer (8), which is formed by extending from each transparent electrode (3) to a decorative region (25) on a side of a display area; an insulating layer (20), which has a contact hole (20a) at a position opposite to a surface of the first wiring layer (8) and is formed on the surface side of the transparent substrate; a conductive portion (21), which is formed in the contact hole (20a); and a second wiring layer (15a), which is integrally formed with the conductive portion (21) and extends to the surface of the insulating layer (20) and is electrically connected to the first wiring layer (8 ). A side wall surface (20c) of the contact hole (20a) is gradually increased from the width T1 of the contact hole (20a) to form an inclination surface from the surface of the first layer toward the surface of the insulating layer. Moreover, the conductive portion (21) is filled inside the contact hole.