Patent ID: 7431461

Claim:
An optical display apparatus, comprising: a light source; a first light modulator element having a plurality of pixels capable of independently controlling light propagation characteristics and a second light modulator element having a plurality of pixels capable of independently controlling light propagation characteristics and to decide a resolution of display, to thereby modulate light from the light source through the first and second light modulator elements and display an image; and a light propagation characteristic control apparatus, comprising: a light propagation characteristic tentative deciding device to tentatively decide a light propagation characteristic of each pixel of the second light modulator element; a first light propagation characteristic deciding device to decide a light propagation characteristic of each pixel of the first light modulator element depending upon the light propagation characteristic tentatively decided by the light propagation characteristic tentative deciding device and display data; a first control value deciding device to decide a control value of each pixel of the first light modulator element depending upon the light propagation characteristic decided by the first light propagation characteristic deciding device; a second light propagation characteristic deciding device to decide a light propagation characteristic of each pixel of the second light modulator element depending upon the light propagation characteristic decided by the first light propagation characteristic deciding device and display data; and a second control value deciding device to decide a control value of each pixel of the second light modulator element depending upon the light propagation characteristic decided by the second light propagation characteristic deciding device.