| 摘要 |
Light radiated from a light source passes through a liquid crystal display device and a projection lens and is reflected by a mirror, thus reaching a screen. The projection lens has a zoom function to scale up an image displayed on the display device by an arbitrary scaling factor. A microcomputer determines, based on an image signal, the scaling factor of the image to be displayed on the screen and controls a projection lens drive motor so that the image displayed on the display device may be projected onto the screen, scaled up by this scaling factor.
|
