| 摘要 |
PURPOSE: An advertising board using a lenticular screen is provided to maximize the effect of advertisement by allowing a picture plate mounted on the rear surface of the lenticular screen to display two picture screens. CONSTITUTION: The lenticular screen(20) continuously formed with semicircular lenses is fixed on the front surface of a case(10). A picture plate printed with a picture(30a,30b) is inserted between the case and the lenticular screen. The picture plate tightly contacting with the rear surface of the lenticular screen is liftable by using an elastic spring provided on the upper end of the picture plate and an eccentric rotating cam provided on the lower end of the picture plate. Due to a sight window(51) and a fluorescent lamp(50) mounted on the rear side of the picture plate, the picture plate is highlighted. The two pictures printed on the picture plate are able to be differently displayed according to the lifting degree of the picture plate.
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