The present invention provides a flexible substrate, an electro-optical device and electric equipment with the flexible substrate. The short circuit which is likely to generate on the adjacent terminal parts relative to the inclining inserting of the connector is prevented in the flexible substrate. The flexible substrate (200) is connected with the connector (300) comprising a plurality of connecting terminals (320 and 321); and includes the following components: a substrate body (210) extending in the length direction of the flexible substrate; a plurality of electric wirings (220) which are arranged on the substrate body and extend along the length direction; and a plurality of terminal parts (230) which are respectively connected with a plurality of electric wirings at the front side of the substrate body and are arranged in the width direction intersect to the length direction corresponding to a plurality of connecting terminals. The invention also comprises the coating wire leads (240) which are respectively connected with the parts different from the parts connected with a plurality of electric wiring on a plurality of terminals and extend to the edge (200e1) of the flexible substrate and have a width (W1) narrower than the width (W1) of the electric wiring.