Patent ID: 6714174
Filing Date: 2004-03-30
Classification: G02B,G02F,H04N

Abstract:
A three-dimensional display device for forming three dimensional image from two-dimensional image on a display portion, comprising:a layer of a transparent material having a desired curved surface configuration; layer of a variable refractive index material having a refractive index varying in accordance with a voltage applied thereto; at least two transparent electrodes arranged to sandwich said layer of the transparent material and said layer including the variable refractive index material; an imaging position shifting portion for shifting an imaging position of said two-dimensional image displayed on said display portion; a synchronizing portion for synchronizing an updating period of the two dimensional image displayed on said display portion with a shifting period of the imaging point of said imaging position shifting portion; and a driving portion for driving said imaging point shifting portion by applying a voltage to said at least two transparent electrodes in accordance with an output from said synchronizing portion.