Patent ID: 8436960
Filing Date: 2013-05-07
Classification: G02B,G02F

Abstract:
1. A liquid crystal display device, comprising: a prism sheet including a light source so disposed as to be able to emit light onto the first main surface of the prism sheet; and a liquid crystal panel disposed on the second main surface side of the prism sheet and controlling light emitted from the light source and transmitted through the prism sheet, wherein a plurality of second prism rows are formed on the second main surface, and wherein ridges of the second prism rows are composed of convex parts with high peaks and concave parts with low peaks formed alternately, the peaks of the convex parts have a rounded cross section and are higher than peaks of the first prism rows, and a cross-sectional shape of the peaks of the concave parts is sharp, and only the convex parts make contact with an optical sheet disposed on the second main surface side of the prism sheet, such that scratching of the optical sheet is substantially prevented by the rounded peaks of the convex parts making contact with the optical sheet.