| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a visible information to be observed even in the dark and, in addition, the visible information to be rewritten and then displayed by a method wherein a stimulable substance is incorporated in a displaying part, which is made rewritable by means of a reversible displaying element. SOLUTION: As a displaying part 1, a reversible displaying element 4, which has a displaying layer 11 as a magnetic microcapsule layer 21, is employed. Further, the magnetic microcapsule layer 21 is formed on a transparent resin film serving as a transparent protective layer 13 under the condition that an intermediate layer 14 for improving adhesion is formed on the protective layer 13. Furthermore, on the magnetic microcapsule layer 21, a background layer 12 made of black layer and a self-adhesive layer 15 are formed in the order named. The magnetic microcapsule layer 21 dispersingly holds magnetic microcapsules 211 in polymer matrix 212 and stimulable substance 5 in the polymer matrix 212. And, by orientating the magnetic powder 213 floating in the magnetic microcapsules 211 by external magnetic field, the light reflectance is changed in order to be used as a displaying layer 11.</p> |
