LIGHT GUIDE PLATE, LUMINAIRE, DISPLAY UNIT, AND TELEVISION RECEIVER

摘要

PROBLEM TO BE SOLVED: To improve uniformity of a luminance distribution without using any special member.SOLUTION: A light guide plate 19 includes: a light incidence surface 22; a light emission surface 19a; an opposite plate surface 19f; and a light reflection pattern LRP comprising a light reflection part 23 formed on the opposite plate surface 19f. The light reflection pattern is characterized in that the light reflection part 23 has relatively higher distribution density in a region on an end side in a second direction than in a region on a center side in the second direction and also has relatively high distribution density in a region on a center side in a first direction than in a region on an end side close to the light incidence surface 22 in the first direction, and the difference in distribution density of the light reflection part 23 between the region on the end side in the second direction in the region on the center side in the first direction and the region on the center side is relatively larger than the difference in distribution density of the light reflection part 23 between the region on the end side in the second direction in the region on the end side close to the light incidence direction 22 in the first direction and the region on the center side.