| 摘要 |
<p>In order to position the light points concurring to form a high number of high-definition figures, which can be alternatively activated on a variable-message light board, the technique is provided of constructing each alternative figure through pre-established grids on which the knots are to be located which are to correspond to the light points that form the figure itself, and of employing for all alternative figures grids which are identical to one another, as well as of performing relative translations of said grids in order to locate relative positions with no points in common or with a umber of points in common which, though decreases the total number of points, does nor give rise, in case of employment of optical fibres, to an increase in the number of total bundles.</p> |
