| 摘要 |
PROBLEM TO BE SOLVED: To display videos of a plurality of different systems on two or above screens by using one liquid crystal light bulb. SOLUTION: A video synthesis device 30 synthesizes video signals A and B and outputs a synthetic video signal obtained by time-dividing the video signals of the respective systems at every frame in accordance with a synchronizing signal. A video signal/optical video conversion device 34 converts the synthetic video signal into an optical video. A half mirror 3 branches the optical video into different directions and time-divisionally projects the optical videos branched by shutters 4 and 14 on the screens 7 and 17 arranged in the directions different for the respective optical videos of the respective systems in accordance with the synchronizing signal. COPYRIGHT: (C)2004,JPO
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