Patent ID: 6011580
Filing Date: 2000-01-04
Classification: G02B,H04N

Abstract:
An image display apparatus which shows a viewer a first image and a second image different from the first image, said apparatus comprising:a spatial modulation device of light transmission type, for displaying the first and second images so that areas of the spatial modulation device displaying the images exhibit different transmission characteristics for polarized light from each other;a back lighting device arranged behind said spatial modulation device for illuminating said spatial modulation device from a back surface, said back lighting device displaying first and second graphic patterns at respective locations thereof corresponding to the viewer's right and left eyes, respectively; andan optical element arranged before said back lighting device to provide the viewer's right and left eyes with light beams from the first and second graphic patterns, respectively,wherein said back lighting device displays the first and second graphic patterns so that the first and second graphic patterns have respective polarization characteristics which match the transmission characteristics for polarized light of the first and second images displayed on the spatial modulation device.