Display apparatus and light source device thereof

A display apparatus comprising:

• a light source device configured to output light;
• and
• a liquid crystal panel configured to block or transmit the light,
• wherein the light source device comprises:
• a substrate;
• a plurality of light emitting diodes mounted on the substrate and arranged along a first direction and a second direction perpendicular to the first direction;
• a plurality of optical domes configured to cover the plurality of light emitting diodes;
• and
• a plurality of reflective layers each provided in front of the plurality of light emitting diodes, and
• wherein the plurality of reflective layers output main light, which is emitted from the plurality of light emitting diodes, to have an angle that is greater than or equal to 50° but less than or equal to 65° with respect to a front and rear direction.