| 摘要 |
A polarization module includes: a polarizer; a plurality of first quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer; and a plurality of second quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer in the direction opposite to the tilting direction of the optical axes of the first quarter-wave plates.
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