Patent ID: 9594202
Date: 2017-03-14
CPC Classifications: G02B,G02F

Claim:
1. A backlight unit comprising: a light source device comprising a plurality of light sources each of which is configured to emit light; and a light diffusion member positioned next to the light source device to diffuse or scatter the light emitted from the light source portion, wherein the light diffusion member comprises at least one reflector to change a light path of the light emitted from the light source device while the light passes through the light diffusion member, wherein the light diffusion member comprises a plurality of light diffusion units each of which comprises the at least one reflector, and wherein the light diffusion unit comprises a hexahedron shape having a rhomboid cross-section, and comprises a light incident surface and a light emission surface, wherein an acute angle formed on the rhomboid is in the range of about 30° to about 60°, wherein the light diffusion unit comprises four reflection surfaces provided by the at least one reflector.