Light propagation characteristic control apparatus, optical display apparatus, light propagation characteristic control program, optical display apparatus control program, light propagation characteristic control method and optical display apparatus control method

摘要

Exemplary embodiments of the present invention provide a light propagation characteristic control apparatus which extends the light-intensity dynamic range and the number of levels, and are suited for enhancing image quality and reducing the size and generation time of tables. Exemplary embodiments provide a projection display apparatus that tentatively decides a transmissivity T 2 of each pixel of a color-modulation light valve depending upon HDR display data, and decides a transmissivity T 1 of each pixel of an intensity-modulation light valve depending upon a tentatively decided transmissivity T 2 and the HDR display data, and a control value of each pixel of the intensity-modulation light valve depending upon a decided transmissivity T 1 . Depending upon a decided transmissivity T 1 and the HDR display data, transmissivity T 2 is decided of each pixel of the color-modulation light valve. Depending upon a decided transmissivity T 2 , a control value is decided of each pixel of the color-modulation light valve.