Lighting device and image display device including the same

摘要

A lighting device according to the present invention includes: a curvedly shaped base chassis having a reflection layer on its inner surface; an optical sheet facing the reflection layer to output illuminating light of the lighting device; a light source group, disposed between the base chassis and the optical sheet, including first light sources and second light sources emitting light in mutually opposite directions; a light source substrate mounted with the light source group, and a light distribution adjusting member, covering the optical sheet side of the light source group, to direct light from the light source group into predetermined directions. The directions of light emission from the light source group are in parallel with the light output surface of the optical sheet. The reflection layer is curved such that a portion thereof on each of the two direction sides is concave away from the optical sheet.

主权项

1. A lighting device comprising:
a curvedly shaped base chassis having a reflection layer provided on an inner surface thereof; an optical sheet which is disposed to face the reflection layer of the base chassis and outputs illuminating light of the lighting device; a light source group which is disposed in a space between the base chassis and the optical sheet and includes a plurality of first light sources emitting light in a first direction and a plurality of second light sources emitting light in a second direction opposite to the first direction; a light source substrate on which the light source group is mounted and which is mounted on the base chassis; and a light distribution adjusting member which is disposed to cover an optical sheet side of the light source group and which directs light from the light source group into predetermined directions, wherein the first and second directions in which light is emitted from the light source group are, in a space between the base chassis and the optical sheet, in parallel with a light output surface of the optical sheet, the plurality of the first light sources are arranged in a direction perpendicular to the first direction, and the plurality of the second light sources are arranged in a direction perpendicular to the second direction, and wherein the reflection layer on the inner surface of the base chassis is curved such that a portion thereof on each of the first-direction side and the second-direction side relative to where the light source substrate is mounted is curved to concavely face the optical sheet.