| 摘要 |
A projection display apparatus has a light source for emitting a white spotlight, a color wheel on which a plurality of transmission areas having different light transmission characteristics are arranged in the circumferential direction, a modulation unit which modulates the spotlight based on image data in a mixed-color period in which, along with the rotation of the color wheel, the spotlight from the light source passes through the color wheel at the boundary between a first transmission area and a second transmission area adjoining each other and having different transmission characteristics, and a timing change unit which changes the timing at which image data based on which the spotlight is modulated is switched to another one.
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