Patent ID: 8491144
Filing Date: 2013-07-23
Classification: G02B,G02F

Abstract:
1. A light emitting device comprising: a light guide unit in which a plurality of light guide plates each having a light outgoing face on a surface and a light incidence face on a side end face are disposed on the same face so as to have gaps between the side end faces; a light source in which one or more light emitting elements which emit light toward the light incidence face of the light guide plate is/are disposed in each of the gaps; a light control member having a light incidence face on a back face, a light outgoing face on a surface and a light dispersion structure, and disposed so as to cover the gap on the neighboring two light guide plates; and a diffusion member disposed above the light guide unit and the light control member, wherein the light dispersion structure includes a plurality of grooves extending in a direction along the side end face of the light guide plate and having curved wall faces, and emits leakage light from the gap in outgoing light of the light emitting element to a region wider than a region opposed to the gap, in the diffusion member.