| 摘要 |
<p>A magnetic pixel board of the present invention comprises a plurality of magnetic pixels. The magnetic pixel comprises: a cell area of a three-dimensional space including a multi-pole magnetic element; a transparent protective film provided on the front side thereof; and a rear processing unit provided on the rear side thereof. The multi-pole magnetic element in the magnetic pixel comprises a plurality of N poles and a plurality of S poles, wherein the surface of the N poles is painted with a lighter color and the surface of the S poles is painted with a darker color or, the other way around, the surface of the S poles is painted with a lighter color and the surface of the N poles is painted with a darker color, in order for the contrast between light and shade to be identified using the natural light in accordance with the recorded information. As a method for recording information in the multi-pole magnetic element in the magnetic pixel, a magnetic pen element or an electromagnetic control signal of the rear processing unit may be used.</p> |
