Magnetic migration reversal display panel and a magnetic migration reversal display method.

摘要

PPROBLEM TO BE SOLVED: To provide a magnetophoretic reversal display panel for magnetically displaying three colors, i.e. two colors in addition to the background by forming display by causing magnetophoresis or magnetophoresis/reversal of micromagnets by a magnet, changing display colors by causing reversal of the micromagnets again by the magnet from the same surface, and further erasing the display by attracting the micromagnets by a magnet for erasure from the reverse surface. PSOLUTION: The magnetophoretic reversal display panel includes: a dispersion liquid where micromagnets having different color of magnetic pole are dispersed into a dispersion medium containing a coloring material and which has a yield value; and a base holding the dispersion liquid. The magnetophoretic reversal display panel is characterized in that a handwriting representing two display colors by selecting a magnetic pole for an external magnetic field is obtained by selecting a specified magnetic pole at a handwriting part and making the external magnetic field operate from the surface side to cause magnetophoresis or magnetophoresis/reversal of the micromagnets in the dispersion liquid, and displaying the color tone of a specified surface which is the surface of the magnetic pole opposite to the selected magnetic pole for the external magnetic field of the micromagnets. PCOPYRIGHT: (C)2008,JPO&INPIT