Patent ID: 7027029

Claim:
An image display apparatus comprising: an image display medium which has a light-transmissive top-plane substrate, a back-plane substrate disposed so as to face the top-plane substrate, a pair of electrodes respectively provided on a surface of the top-plane substrate facing the back-plane substrate and on a surface of the back-plane substrate facing the top-plane substrate, a conductive particle group which is enclosed between the top-plane substrate and the back-plane substrate so as to move between the pair of electrodes due to an electric field formed by a voltage which is applied to the pair of electrodes and which has a color that is different from a color of the back-plane substrate, and a withdrawal electrode portion provided at a withdrawal region of the particle group; and a voltage applying section which applies a DC voltage for moving the particle group to the withdrawal region to at least one of the pair of electrodes when the color of the back-plane substrate is to be displayed, and which applies a DC voltage for moving the particle group to the outside of the withdrawal region, to the withdrawal electrode portion when the color of the particle group is to be displayed.