Backlight unit and liquid crystal display

A backlight unit comprising:

• a plurality of light sources;
• and
• a diffusion unit laid over the plurality of light sources and including a diffusion plate arranged to receive light from the plurality of light sources, a lenticular lens layer disposed on the diffusion plate, and an optical member containing dispersed particles interposed in between;
• wherein
• the optical member includes a plurality of optical members with different transmissivities provided in an interposed layer located between the diffusion plate and the lenticular lens layer.

A backlight unit comprising:

• a plurality of light sources;
• and
• a diffusion unit laid over the plurality of light sources and including a diffusion plate arranged to receive light from the plurality of light sources, a lenticular lens layer disposed on the diffusion plate, and an optical member containing dispersed particles interposed in between;
• wherein
• the optical member includes a plurality of optical members with different reflectivities provided in an interposed layer located between the diffusion plate and the lenticular lens layer.

A backlight unit comprising:

• a plurality of light sources;
• and
• a diffusion unit laid over the plurality of light sources and including a diffusion plate arranged to receive light from the plurality of light sources, a lenticular lens layer disposed on the diffusion plate, and optical members containing dispersed particles interposed in between;
• wherein
• an interval between the optical members created by the optical members being laid discontinuously in an interposed layer located between the diffusion plate and the lenticular lens layer is a gap through which light can pass, and a plurality of gaps with different areas are formed in a surface of the interposed layer.