| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a high dynamic range of a large screen and high resolution projection display device. SOLUTION: Relating to the projection display device projecting and displaying an image formed with an optical modulator, an illumination light quantity modulation means adjusting a light quantity illuminating the optical modulator is provided between a light source illuminating the optical modulator and the optical modulator.</p> |
