LENS SHEET, AND BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE USING LENS SHEET

摘要

A lens sheet (15) to be used for backlight is provided with a plurality of columnar lenses (161) arranged parallel to each other. Each columnar lens (161) is composed of a plurality of microlens sections (162) connected in a row. The microlens sections (162) adjacent to each other in the same columnar lens (161) are connected on virtual surfaces (164). Since the lens sheet (15) includes the microlens sections (162), front luminance is improved. Furthermore, a view angle in the longitudinal direction of the columnar lens (161) composed of the microlens sections (162) connected in a row is widely maintained.