US Patent 11877466 Substrate for display

A substrate for a display, according to one embodiment, comprises: one surface; another surface which is the reverse of the one surface; a first area; and second areas, wherein the one surface is folded so as to face itself, the first area is defined as a folding area, and the second areas are defined as unfolding areas. The substrate for a display comprises a first layer, and a second layer which is disposed on the first layer, wherein the first area of the first layer comprises a plurality of first holes or first grooves, the first layer is an etch layer, and the second layer is an etch stopper layer.