Optical unit, backlight assembly having the same and display device having the same

A backlight assembly comprising:

• a plurality of light sources configured to generate light;
• an optical unit to condense and diffuse the light, the optical unit comprising:
• a base;
• a light-condensing portion comprising a first curved slant face protruding from the base and a second curved slant face protruding from the base, the second curved slant face being slated toward the first curved slant face;
• and
• a protrusion portion disposed on a surface of the light-condensing portion.

A display device comprising:

• a plurality of light sources to generate light;
• an optical module to condense and diffuse the light, the optical module comprising an optical unit including:
• a base;
• a light-condensing member comprising a first curved slant face protruding from the base and a second curved slant face protruding from the base, the second curved slant face being slated toward the first curved slant face;
• and
• a protrusion portion disposed on a surface of the light-condensing portion,
• a display panel disposed over the optical module to display an image using light from the optical module.