LIGHT GUIDE PLATE, BACKLIGHT UNIT AND DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an optical member capable of achieving high incident efficiency and front surface luminance, in which hot spots are reduced.

SOLUTION: A transparent light guide plate 20 includes light sources 5 and at least one light incident surface 1 opposite to a reflection plate 2 and has a light reflection surface substantially orthogonal to the light incident surface and a light emission surface 3 on an inverse surface of the light reflection surface. The light incident surface is equipped with fine irregularities 15 formed into a triangular prism shape, and the fine irregularities each have a shape extending in a substantially vertical direction against the light emission surface.

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