| 摘要 |
<p>A projection image display apparatus of the present invention has a light source (11), a color wheel (13) to transmit light from the light source, a digital micromirror device (DMD) (16) to which color light transmitted through the color wheel is applied, a screen (18) onto which video light from the DMD is projected through a projection lens, a power supply control unit (60) to control a supply voltage of the light source in a completely on state, completely off state and low-power standby state, and an informing mechanism (91, 92) to inform the controlled states of the power supply control unit, wherein the operation states of the light source can be easily and externally recognized.</p> |
