LIGHT GUIDING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE WITH THE LIGHT GUIDING PLATE

摘要

A light guiding plate capable of extracting the polarized component of light that was not utilized effectively, reducing the number of parts such as light emitting elements, and reducing a power consumption and a liquid crystal display device having the light guiding plate; the light guiding plate (1), comprising a light guiding means (40) for guiding the light incident from a light source (2), a polarizing and separating means (10) allowing the outgoing of only the polarization in one direction, a reflection means (30) for reflecting the light, and a light converting means (20) disposed between the polarizing and separating means (10) and the reflection means (30) and converting the polarization direction of the light transmitted therethrough.