Patent ID: 7154572

Claim:
A liquid crystal display device comprising: a backlight assembly comprising a light path regulating means including a first prism sheet, and the first prism sheet concentrating a first light supplied from an internal light source, regulating a light path of the first light and outputting a second light, the first prism sheet having a plurality of first triangular prisms formed on a first transparent film, an apex of each of the first triangular prisms having a round shape; and a liquid crystal display panel assembly including an anti-glare polarizing plate for uniformly polarizing a polarized plane of the second light, and the liquid crystal display panel assembly displaying an image based on the second light, wherein the first triangular prisms form a plurality of ‘V’ shaped grooves and each of the first triangular prisms has a bottom surface, a first oblique face and a second oblique face, apexes each of which is formed by the first oblique face and the second oblique face has a substantially same height, a ridge of each apex extends along a longitudinal direction of each triangular prism and has a shape of a curved line.