LIGHT-GUIDE APPARATUS WITH MICRO-STRUCTURE, BACK LIGHT UNIT COMPRISING THE SAME AND LIQUID CRYSTAL DISPLAY COMPRISING THE SAME

摘要

PURPOSE: A light-guide apparatus with a micro-structure, a back light unit comprising the same and a liquid crystal display comprising the same are provided to improve brightness while maintaining light emission. CONSTITUTION: A light guide layer(12) includes a light incidence side and receives the light from a side light source. A reflection layer(11) reflects a part of light, facing to the reflection layer, which is accommodated into the light guide layer again. A light distribution layer is formed in the top side of the light guide layer opposite to the reflection layer and includes an emission side radiating the light which is accommodated to the light guide layer. The light guiding layer is interposed between a reflection layer and a spectral layer. The emission side and the incident side are perpendicular to each other. A part of the light in the light guide layer is projected to the emission side.