LIGHT PROPAGATION CHARACTERISTIC CONTROL APPARATUS, OPTICAL DISPLAY APPARATUS, LIGHT PROPAGATION CHARACTERISTIC CONTROL PROGRAM STORAGE MEDIUM, OPTICAL DISPLAY APPARATUS CONTROL PROGRAM STORAGE MEDIUM, LIGHT PROPAGATION CHARACTERISTIC CONTROL METHOD AND OPTICAL DISPLAY APPARATUS CONTROL METHOD

摘要

For providing a light propagation characteristic control apparatus which allows to extend the light-intensity dynamic range and the number of levels, and is suited for improving image quality and reducing the size and generation time of tables, a projection display apparatus (100) tentatively decides a transmissivity (T2) of each pixel of a color-modulation light valve, decides a transmissivity (T1) of each pixel of an light-intensity-modulation light valve depending upon a tentatively decided transmissivity (T2) and HDR display data and decides a control value of each pixel of an light-intensity-modulation light valve depending upon a decided transmissivity (T1). Then, depending upon a decided transmissivity (T1) and HDR display data, decided is a transmissivity (T2) of each pixel of the color-modulation light valve. Depending upon a decided transmissivity (T2) a decision is taken on the control value of each pixel of the color-modulation light valve. IMAGE