Patent ID: 7948469

Claim:
An image display device, comprising: a display section which includes a light source and displays an image based on a visible light outputted from the light source; a controller for having the display section display the image at a predetermined frame rate, for amplitude-modulating or phase-modulating the visible light with a frequency higher than the frame rate, and for having the visible light carry predetermined information; and an image receiver for receiving an image signal, wherein the display section is formed of luminous bodies corresponding to pixels which are arranged in a matrix pattern, wherein the controller drives the light source in accordance with the image signal to have the display section display an image, and amplitude-modulates or phase-modulates the visible light outputted from the light source such that the visible light carries the predetermined information, wherein the predetermined information includes multiple types of information for amplitude-modulating or phase-modulating the visible light with multiple types of frequencies higher than the frame rate, wherein the display section includes a plurality of display areas, wherein the image display device further comprises one or more light receivers for receiving visible lights output from the display areas of the display section and which are reflected off an object, wherein the controller controls the luminous bodies such that amplitude-modulated or phase-modulated visible lights using the multiple types of information are respectively outputted from different display areas, and specifies a position of the object based on a phase difference among the reflected visible lights received by the one or more light receivers, wherein the object is a viewer, wherein the display section is provided with a lenticular lens which is formed of convex lens bodies with the lens bodies being arranged in a lateral direction, and is attached on a surface of the display section so as to be movable in a lateral direction, and wherein the controller moves the lenticular lens such that the specified position of the viewer is within a stereoscopic area.