Display device and manufacturing method thereof

A display device, comprising:

• a resin substrate layer;
• a thin-film transistor layer provided on the resin substrate layer and including an inorganic insulating film;
• a planarization resin film provided on the thin-film transistor layer and formed of an organic material;
• a light-emitting-element layer provided on the planarization resin film and including a plurality of first electrodes, a plurality of light-emitting functional layers, and a second electrode stacked on top of another in a stated order, each of the plurality of first electrodes and each of the plurality of light-emitting functional layers corresponding to one of a plurality of sub-pixels included in a display region, and the second electrode being provided in common among the plurality of sub-pixels;
• a frame region provided around the display region;
• a terminal unit provided to an end portion of the frame region;
• a folding portion provided between the display region and the terminal unit to extend in a direction;
• a slit included in the inorganic insulating film and provided to the folding portion to extend in the direction in which the folding portion extends;
• a filling resin film provided to the folding portion to fill the slit;
• and
• a plurality of routed wires provided on the filling resin film to extend in parallel with one another in a direction intersecting with the direction in which the folding portion extends,
• wherein the planarization resin film includes a trench provided in a region between the display region and the folding portion to expose the inorganic insulating film, and
• on the plurality of routed wires, a base resin film is provided to the folding portion, the base resin film being formed of a same material as a material of the planarization resin film.