| 摘要 |
A liquid-crystal projector includes: liquid-crystal panel sections a first illumination section including a red light source, red light emitted from the red light source being applied to a liquid-crystal panel section; a second illumination section including a green light source, a blue light source and a polarizing beam splitter that splits green light emitted from the green light source into p-polarized light and s-polarized light, the green s-polarized light being applied to a liquid-crystal panel section, the green p-polarized light and blue light being applied to a liquid-crystal panel section on the same optical path; a cross dichroic minor that combines images displayed on liquid-crystal panel sections; a projection lens that projects the combined image; and a control unit that controls on/off states of the red light source, the green light source and the blue light source based on an input video signal to display respective images on the liquid-crystal panel sections. |
| 主权项 |
1. A liquid-crystal projector comprising:
first to third liquid-crystal panel sections that each spatially modulate incident light to display an image; a first illumination section that includes a red light source that emits red light having a peak wavelength in a red wavelength band, the red light emmited from the red light source being applied to said first liquid-crystal panel section; a second illumination section that includes a green light source that emits green light having a peak wavelength in a green wavelength band and a blue light source that emits blue light having a peak wavelength in a blue wavelength band, the green light emitted from the green light source being split into first linearly-polarized light and second linearly-polarized light, vibration directions of the first linearly-polarized light and the second linearly-polarized light being perpendicular to each other, the first linearly-polarized light being applied to said second liquid-crystal panel section, the second linearly-polarized light and the blue light emitted from the blue light source being applied to said third liquid-crystal panel section; a polarized light color combining section that combines images displayed on said first to third liquid-crystal panel sections; a projection lens that projects combined image light resulting from the combination in said polarized light color combining section; and a control means unit that controls on/off states of the red light source, the green light source and the blue light source based on an input video signal to display respective images on said first to third liquid-crystal panel sections.
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