3−D IMAGE DISPLAY UNIT,DISPLAY UNIT,OR SPLIT WAVELENGTHE PLATE FILTER MOUNTED ON THESE DSPLAY UNITS,PLATY FILTER,AND FILTER POSITION ADJUSTING MECHANISM,POSITIONING DEVICE,AND FILTER POSITION ADJUSTING METHOD,POSITIONING METHOD

摘要

A 3−D image display unit so structured as to comprise an image display unit (22) for displaying parallax−compliant image information in a first section and a second section, a split wavelength plate filter unit (12) having a frame (41), disposed adjacent to the first and second sections of the image display unit, and rotating the polarization of the image information from the first section in a direction different from the polarization of the image information from the second section, and position adjusting means (35R, 35L) that acts on the frame of the split wavelength filter to permit the adjustment of a relative position between the image display unit and the split wavelength filter unit.