US Patent 7492514 Stereoscopic image display with vertical and lateral arrangements

An image display provides a stereoscopic image to an observer by advancing either light having a first polarization axis or light having a second polarization axis toward the eyes of the observer while arranging a prescribed reference side of a display panel in a first direction, and provides another stereoscopic image to the observer by advancing either light having a third polarization axis or light having a fourth polarization axis toward the eyes of the observer while arranging the prescribed reference side of the display panel in a second direction intersecting with the first direction.