LIGHT-GUIDING PLATE, LIGHT-GUIDING PLATE MANUFACTURING METHOD, SURFACE LIGHT-SOURCE DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

A light guide plate (30) has a light exit surface (30a), a back surface (30b) opposed to the light exit surface, and a light entrance surface (30c) consisting of at least part of a side surface. The light guide plate has a body portion (40), and a light exit-side layer (50) formed from an ionizing radiation curable resin. The light exit-side layer includes an optical element portion (54) which defines the light exit surface. The optical element portion includes unit shaped elements (55) arranged in one direction intersecting a light guide direction, each unit shaped element extending linearly in a direction intersecting the one direction.