Partially curved or foldable display device including recess grooves and manufacturing method therefor

Abstract

A display device according to one embodiment is a display device in which a first folding area, a first non-folding area on one side of the first folding area, and a second non-folding area on the other side of the first folding area are defined, and comprises a first substrate, a second substrate disposed on the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and an upper polarization member disposed on one surface of the second substrate and spaced apart from the liquid crystal layer with the second substrate interposed therebetween, wherein the second substrate has a first thickness, which is partially slimmed, in the first folding area, the second substrate has a second thickness, which is greater than the first thickness and corresponds to an original thickness of a flat display element without being slimmed, in each of the non-folding areas, the upper polarization member is disposed over the first non-folding area, the folding area and the second non-folding area, a first gap distance between one surface of the second substrate and the upper polarization member in the first folding area is greater than a second gap distance between one surface of the second substrate and the upper polarization member in each of the non-folding areas.