Side light-emitting device, backlight unit having the side light-emitting device, and liquid crystal display apparatus employing the backlight unit

摘要

A side light-emitting device including a light-emitting device to generate light and a side emitter to emit the light incident from the light-emitting device in a lateral direction. The side emitter includes a first reflecting surface to reflect the light emitted from the light-emitting device into the side emitter, a second reflecting surface that is formed at a portion of the side emitter that contacts the light-emitting device to reflect a first light that is reflected from the first reflecting surface in the lateral direction, and a refracting surface to refract a second light that is reflected from the first reflecting surface and proceeding directly toward the refracting surface and the first light that is reflected from the first reflecting surface to the second reflecting surface and is reflected again from the second reflecting surface to exit the side emitter in the lateral direction.