A display device includes a display panel and a flexible wiring board, an end portion of which is joined to the display panel. The flexible wiring board includes a flexible base substrate in which a through-hole is formed in a position not overlapping the display panel of an extending portion extending from the end portion joined to the display panel in plan view, a first wiring pattern formed to close the through-hole on one surface of the flexible base substrate, and a first resin layer having more flexibility than the flexible base substrate and formed to fill the through-hole formed in the flexible base substrate.