Liquid crystal display apparatus

Abstract

A wavelength selection substrateis configured with a wavelength selection sectionR which transmits only red laser light and reflects other light components, a wavelength selection sectionG which transmits only a green laser light and reflects other light components, and a wavelength selection sectionB which transmits only a blue laser light and reflects other light components. Of laser lightoutputted from a light guide plate, a laser light component that corresponds to a color passing through one of the wavelength selection sections passes through the wavelength selection substrateand enters a liquid crystal panel, whereas a laser light component that does not correspond to the color is reflected from the wavelength selection substrateand returns the light guide plate. The laser light having returned the light guide plateis reflected from the reflection plateand again enters the wavelength selection substrate. This reciprocation of the laser light is repeated until the laser light pass through the wavelength selection section. With this repetition of passing and reflection, the laser lightis separated into respective colors of red, green, and blue, and outputted from the wavelength selection substrate