| 摘要 |
A light guide plate (3) receives light emitted from the light source (2), and emits the light from a light emitting surface (32). A prism sheet (5) reflects light at a predetermined angle among the light emitted from the light emitting surface (32), allows the reflected light to enter the light guide plate (3), and transmits light at another angle. A polarization control element (8) is provided between a 1/4 wavelength plate (12) and a reflection-type liquid crystal display element (1) so as to be parallel to the light emitting surface (32). The polarization control element (8) splits the light emitted from the 1/4 wavelength plate (12) into first polarized light allowed to transmit as illumination light that enters the reflection-type liquid crystal display element (1) and second polarized light reflected so as to enter the light guide plate (3), and reflects the light modulated and emitted by the reflection-type liquid crystal display element (1) toward an imaging lens (10). The imaging lens (10) allows the incident light to go toward a combiner (21). |
