Patent ID: 8752965

Claim:
A stereoscopic display apparatus, comprising: an image projection module; a plurality of projection lenses; and an optical path switching module disposed between the image projection module and the projection lenses, the optical path switching module having a light-incident surface and different light-emitting surfaces, wherein an image signal generated by the image projection module enters the optical path switching module through the light-incident surface, the optical path switching module comprising a plurality of polarization beam splitters and a polarization adjusting module, wherein the polarization adjusting module is disposed between the polarization beam splitters, and the optical path switching module is used for switching the polarization adjusting module time-sequentially for guiding the image signal to different light-emitting surfaces respectively, so as to form a plurality of image formation beams from the light-emitting surfaces through the projection lenses, and one of the image formation beams is corresponding to a left-vision image, and another one of the image formation beams is corresponding to a right-vision image.