| 摘要 |
<p>A projection type video display for displaying a video by casting light that is emitted from a lamp (1) serving as a light source and modulated on the basis of a video signal, has lamp cooling means (3) for cooling the lamp 1. The video display comprises: detection means (lamp drive circuit 2) for detecting the startup status (lamp voltage information) of the lamp in a startup operation: and control means (microcomputer 4) for controlling the lamp cooling means (3) in accordance with the startup status detected by the detection means. This arrangement can shorten time required for the execution of the startup operation of the lamp.</p> |
