Light emitting device package, light source module, backlight unit, display apparatus, television set, and illumination apparatus

摘要

A light source module, a backlight unit, a display apparatus, a television set, and an illumination apparatus are provided. The light source module includes: one or more light source units including a light emitting element emitting light when electricity is applied thereto; and an optical sheet disposed above the light source units and exhibiting bidirectional transmittance distribution function characteristics having first and second peaks at radiation angles less than 0° and greater than 0°.

主权项

1. Alight source module comprising:
a plurality of light source units comprising alight emitting element emitting light when electricity is applied thereto; an optical sheet disposed above the plurality of light source units and exhibiting bidirectional transmittance distribution function characteristics comprising a first peak at a radiation angle less than 0° and a second peak at a radiation angle greater than 0°, and a diffusion sheet disposed in a path of light transmitted through the optical sheet after being emitted from the plurality of light source units, and comprising diffusion particles dispersed in the interior of a light-transmissive base, wherein the optical sheet comprises a plurality of pyramid-shaped structures, wherein at least one of the plurality of pyramid-shaped structures comprises a plurality of sloped faces which are sloped to a horizontal plane, wherein the plurality of sloped faces have different tilt angles, and the plurality of light source units are arranged on a circuit board, and a distance between the circuit board and the diffusion sheet is smaller than or equal to a half of a pitch between the plurality of light source units.