Invention Grant
US07905647B2 Prism sheet, back light unit using the same and liquid crystal display device having the back light unit 有权
棱镜片,使用相同的背光单元和具有背光单元的液晶显示装置

Prism sheet, back light unit using the same and liquid crystal display device having the back light unit
Abstract:
A prism sheet, a back light unit using the same and liquid crystal display device having the back light unit are disclosed, for improvement of light concentration, frontal luminance and viewing angle, in which the prism sheet includes a light-condensing film. The light condensing film has a plurality of prism peaks, each having a triangular cross section inclined surface which is inclined from a top surface of the light-condensing film at an angle of about 20° to about 40°.
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