According to one embodiment, there is provided a display device which includes an insulating substrate having a bend area, and a wiring line located in the bend area. The bend area is bent about a bend axis extending in a first direction. The wiring line in the bend area has a first portion which extends in the first direction and a second portion which extends in a direction intersecting the first portion and is connected to the first portion. A first angle formed by the first portion and the second portion is less than 90 degrees.