Backlight unit and display apparatus including the same

A display apparatus comprising:

• a display panel;
• and
• a backlight unit positioned at a rear side of the display panel, wherein the backlight unit comprises:
• a support member comprising a central portion and one or more side portions extending from edges of the central portion at a forwardly inclined angle;
• a plurality of light sources disposed at the central portion and configured to emit light;
• a plurality of lenses correspondingly disposed on the plurality of light sources and configured to disperse the light emitted from the plurality of light sources;
• and
• a reflective sheet positioned at a front side of the support member, the reflective sheet comprising a plurality of scattering members protruding from the reflective sheet and configured to scatter the light dispersed by the plurality of lenses, wherein:
• the reflective sheet comprises one or more reflective side portions extending from edges of a reflective central portion at a forwardly inclined angle such that boundaries are defined between ends of each of the one or more reflective side portions and ends of corresponding adjacent reflective side portions;
• the one or more reflective side portions correspond to the one or more side portions of the support member and the reflective central portion corresponds to the central portion of the support member;
• and
• a density of the plurality of scattering members disposed on each of the one or more reflective side portions increases toward the boundaries defined between ends of the reflective side portion and ends of corresponding adjacent reflective side portions;
• the one or more side portions comprises a first subset of side portions extending from first opposite edges of the central portion and a second subset of side portions extending from second opposite edges of the central portion;
• the first subset of side portions are longer than the second subset of side portions;
• the plurality of lenses are configured such that a first width of each lens in a first direction corresponding to the first opposite edges of the central portion is greater than a second width of each lens in a second direction corresponding to the second opposite edges;
• each of the plurality of lenses comprises a refractive lens formed such that a center region of an outer surface thereof projects further forward than a peripheral region thereof;
• the refractive lens comprises a top area, which is an outer surface area that is positioned rearward at a distance of 0.02 mm or less from a foremost point of an outer surface of the refractive lens;
• and
• a length of the top area in the first direction is greater than a lateral distance from an edge of the lens to a point corresponding to an edge of the top area.