| 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 splitting means (10) allowing the outgoing of only the polarization in one direction, a reflection means (30) for reflecting the light, anda light converting means (20) disposed between the polarizing and splitting means (10) and the reflection means (30) and converting the polarization direction of the light transmitted therethrough. <IMAGE>
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