Patent ID: 9164366
Filing Date: 2015-10-20
Classification: G02F,G03B,H04N

Abstract:
1. A projector comprising: a lighting device that emits light; a plurality of vertical alignment mode reflex-type liquid crystal light valves that are provided in correspondence with each of a plurality of different colors, the plurality of vertical alignment mode reflex-type liquid crystal light valves modulating the light of each of the plurality of different colors in a liquid crystal layer, the plurality of liquid crystal light valves including a red light modulating liquid crystal light valve, a green light modulating liquid crystal light valve, and a blue light modulating liquid crystal light valve; a separate phase difference compensation plate that is provided at a light incident side of each liquid crystal light valve, each phase difference compensation plate including a first phase difference compensation layer having negative uniaxial refractive index anisotropy in which an optical axis is taken along a thickness direction, and a second phase difference compensation layer having biaxial refractive index anisotropy; a color synthesizing optical system that synthesizes the color light modulated by the plurality of liquid crystal light valves; a projection optical system that projects the light synthesized by the color synthesizing optical system, to a projection target face; and a case that is provided with each liquid crystal light valve, each case including a first side having an opening portion, wherein