| 摘要 |
A polarized light transmission screen 30 may be used in a stereoscopic image displaying apparatus to display a clear stereoscopic image with few little cross talks over a wide wavelength range. In the polarized light transmission screen 30, 90-degree rotation regions 32b include in piles a plurality of retarders of which the directions of the optical axes differ with one another, and when a linearly polarized light having a polarization axis of a specific direction is made to be transmitted, they rotates the polarization axis by 90 degrees in total by each of the plurality of retarders rotating the polarization axis less than 90 degrees in steps. 0-degree rotation regions 32a include in piles a plurality of retarders of which the directions of the optical axes differ with one another, and when a linearly polarized light having a polarization axis of a specific direction is made to be transmitted, the polarization axes of incidence and emission are the same direction. The screen 30 may include a patterned retarder 34 and an unpatterned retarder 36. Collimator 20, liquid crystal panel 40 and diffuser 50 are shown.
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