主权项 |
1. A light guide plate comprising:
a light introduction part comprising an end face configured to have light incident thereon; and a light guide plate body provided continuously to the light introduction part and comprising a thickness smaller than maximum thickness of the light introduction part, wherein the light guide plate body comprises a light emitting surface configured to emit light incident from the end face, wherein a directivity conversion pattern is provided on at least one of a face on a light exit side and a face opposite to the face, wherein the directivity conversion pattern converts directivity spread in a thickness direction of the light introduction part to a directivity characteristic which is inclined in a direction parallel to a face direction of the light introduction part, wherein a light reflection wall is provided on the end face, and wherein the light reflection wall has, when viewed from a direction perpendicular to the light emitting surface, an angle formed by a region close to the end face and a direction perpendicular to the end face being smaller than an angle formed by a region far from the end face and the direction perpendicular to the end face. |