Patent ID: 8665397
Filing Date: 2014-03-04
Classification: F21Y,G02F,H01L

Abstract:
1. A backlight unit comprising: light-emitting diodes, each of which emits light of a specific color, wherein each of the light-emitting diodes comprises: a transparent substrate having an upper surface and a bottom surface opposite to the upper surface; a light-emitting layer, provided on the upper surface of the transparent substrate, for emitting light of a specific wavelength; a first reflecting layer formed on the light-emitting layer at a light exit side relative to the light-emitting layer and including a function of reflecting the light emitted from the light-emitting layer; and a second reflecting layer provided on the bottom surface of the substrate in a manner to interpose the light-emitting layer between the first reflecting layer and the second reflecting layer, wherein a diffusion layer that diffuses the light emitted from the light-emitting layer is disposed between the first reflecting layer and the second reflecting layer.