Patent ID: 6061179
Filing Date: 2000-05-09
Classification: G02B,H04N

Abstract:
A stereoscopic image display apparatus comprising:light source means for emitting a light beam having a predetermined shape;a transmission type display device for displaying a selected one of a stripe combination image in which respective stripe pixels of a plurality of parallax images are alternatively arranged to be combined, and one two-dimensional image;a micro optical means arranged between said light source means and said display device and having different optical effects in horizontal and vertical directionschanging means for selectively changing the distance between said light source means and said micro optical means, wherein said changing means sets the distance to a first distance by which the light beam through the stripe pixels corresponding to a first parallax image in said stripe combination image and light beam through the stripe pixels corresponding to a second parallax image in said stripe combination image in the light beam which is emitted from said light source means and to which a directivity is given by said micro optical means are respectively directed to one of the eyes of an observer and the other of the eyes of the observer so as to be recognized as a stereoscopic image for the observer when said stripe combination image is displayed, and said changing means sets the distance to a second distance by which the light beam which is emitted from said light source means and to which a directivity is given by said micro optical means is caused to enter said display device so that light beams respectively emerging from a plurality of scanning lines of said two-dimensional image are directed to both the left and right eyes of the observer when said two-dimensional image is displayed.