| 摘要 |
Embodiments of the invention restrain temperature rise in a light exiting-side polarizer included in a liquid crystal light valve without limiting the quantity of light incident on the liquid crystal light valve and a projector that has a liquid crystal light valve to modulate incident light in accordance with a provided image signal and that projects an image represented by modulated light exiting from the liquid crystal light valve. The projector has a black level adjusting unit to adjust black level of the image signal, a temperature-detecting unit to detect temperature of the light exiting-side polarizer, and a control unit to control operation of the black level-adjusting unit. The control unit is characterized by causing the black level-adjusting unit to adjust the black level of the image signal on the basis of the temperature detected by the temperature-detecting unit in order to restrain temperature rise in the light exiting-side polarizer.
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