| 摘要 |
<p>A projective advertising device consists of a support (1) and an advertising board (2) secured to the support. The front of at least one advertising surface of the advertising board is provided with a projector (3) whose projective direction faces the said advertising surface of the advertising board. A rollable screen (4) is mounted at the front of said advertising surface. Roller housings (5) equipped with driving devices (6) are mounted on the two sides of the advertising board. Therefore, the advertising device has compact configuration, and can be used conveniently.</p> |
