A display device includes, a display region, and a peripheral region arranged outside of the display region, the peripheral region includes, a first inorganic insulating layer, a first organic insulating layer arranged on the first inorganic insulating layer, and a second inorganic insulating layer arranged on the first organic insulating layer, wherein a part of the first inorganic insulating layer in the display region side from a slope of the first inorganic insulating layer is in contact with the second inorganic insulating layer, the slope of the first inorganic insulating layer is exposed at the end part of the periphery region, and includes a bottomed hole with a concave and convex part, and the density of a fluorine ions in the concave and convex part is more than 100 times greater than the density of the fluorine ions in the first inorganic insulating layer arranged in the display region.