A liquid crystal display includes a display panel; and an optical film on a bottom surface of the display panel, the optical film including a polarizer; a support sheet on a bottom surface of the polarizer; and a prism sheet on a bottom surface of the support sheet, the prism sheet having a base sheet, a prism portion, and a stitch portion over the base sheet. The prism portion includes a plurality of peaks and has a space defined by a direct contact between the plurality of peaks of the prism portion and the bottom surface of the support sheet.