An exemplary liquid crystal display device (200) includes a liquid crystal display panel (21), and a flexible printed circuit (2) joined to the liquid crystal display panel. The flexible printed circuit includes a substrate (20). The substrate includes a plurality of first conductive lines (210) and second conductive lines (230). The first conductive lines include a plurality of first patches (220). The second conductive lines include a plurality of second patches (240). The first patches are arranged side by side oppositely oriented relative to each other in alternating fashion. The second patches are arranged side by side oppositely oriented relative to each other in alternating fashion.