Patent ID: 7015892
Filing Date: 2006-03-21
Classification: B43L,G02F,G09F

Abstract:
1. A magnetophoretic display panel comprising: a magnetic panel including a pair of substrates at least one of which is transparent and a multi-cell structure which is sealedly arranged between said substrates and formed with an interior space of a thickness of 0.8 to 1.5 mm, said multi-cell structure including a number of cells each of which contains therein a colored liquid and colored magnetic particles having a color tone different from that of said colored liquid; a magnetic recording member provided on an end thereof with a magnet, which member is adapted to be slidably moved on a surface of said magnetic panel to form a display on said surface of said magnetic panel due to magnetophoresis of said magnetic particles in each of said cells; and a magnetic erasure member arranged at a bottom of said magnetic panel so as to be moved along said bottom of said magnetic panel, to thereby erase the display on said surface of said magnetic panel due to magnetophoresis of said magnetic particles in each of said cells; said magnetic recording member exhibiting an effective magnetic flux density of 100 to 500 Gauss at said bottom of said magnetic panel when said magnetic recording member is positioned on said surface of said magnetic panel; said magnetic erasure member exhibiting an effective magnetic flux density of 300 to 1500 Gauss at said surface of said magnetic panel when said magnetic erasure member is positioned on said bottom of said magnetic panel.