Patent ID: 8602581
Filing Date: 2013-12-10
Classification: G02B

Abstract:
1. A backlight device comprising: an optical controller; a light source facing the optical controller; first and second light guide modules configured to guide light emitted by the light source toward the optical controller; and a first member placed in a traveling path of the light emitted by the light source, the first member being located near a joining portion at which the first light guide module and the second light guide module are joined to each other, wherein the first light guide module has a curved shape to deflect light entering a light entering face toward a first rim along the optical controller, the second light guide module has a curved shape to deflect light entering a light entering face toward a second rim along the optical controller, the second rim facing the first rim, the light source includes a plurality of light sources arranged in a direction substantially parallel to the first rim, and the plurality of light sources are arranged with a higher density in a region near a center of the optical controller than in a region far from the center.