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

A light propagation characteristic control apparatus, an optical display device, a light propagation characteristic control program storage medium, an optical display device control program storage medium, a light propagation characteristic control method, and an optical display device control method are provided to improve image quality of the optical display device by increasing a brightness dynamic range and the number of gray levels. A display controller includes a CPU(Central Processing Unit,70), a ROM(Read Only Memory,72), a RAM(Random Access Memory,74), and an interface(78). The CPU performs controls an overall system based on a control program. The ROM stores the control program for the CPU. The RAM stores the data from the ROM and a calculated result from the CPU. The interface transmits and receives data to and from external devices. A signal bus(79) interacts with the external devices. The interface includes a light valve driver(80), a memory unit(82), and a signal line. The light value driver drives a brightness modulation light valve and a color modulation light valve. The memory unit stores the data and a table. The signal line is connected to an external network.