Patent ID: 6417895
Filing Date: 2002-07-09
Classification: G02B,G02F,H04N

Abstract:
An image display device comprising:a display element having a plurality of pixel locations arrayed regularly; a polarization controller for controlling a plurality of electrodes incorporated therein so as to switch the direction of polarization, in which incident light coming from said display element is polarized, in units of a portion composed of electrodes and to emit resultant light; an optical path controller, located on the optical path of light emitted from said polarization controller, for varying the optical path depending on the direction of polarization; and an optical system for magnifying light that has passed through said optical path controller and represents an image displayed on said display element, wherein said display element and said polarization controller are positioned so that the position of a virtual image stemming from said display element and the position of a virtual image stemming from said electrodes in said polarization controller are separated from each other by a distance equal to or longer than a depth of field, the virtual images being produced by said optical system.