Light propagation structure and optical display device of optical system, light propagation method of optical system, and display method of optical display device

摘要

A projection-type display device 100 including a light source 10, a luminance modulation light valve having a plurality of pixels capable of independently controlling a transmission factor T 1, dichroic mirrors 44 a and 44 b that divided the light from the luminance modulation light valve into the three primary colors of red, green and blue, a plurality of color modulation light valves into which light divided with dichroic mirrors 44 a and 44 b respectively enters and have a plurality of pixels capable of independently controlling a transmission factor T 2, and a dichroic prism 48 that synthesizes light from each of the color modulation light valves, and is provided with a relay optical system 16 on the light path of a luminance modulation section 14 and a color modulation section 18 that forms an optical image of the luminance modulation light valve on the pixel surfaces of each of the color modulation light valves.