Patent ID: 7880956

Claim:
An electrophoretic display comprising a display panel comprising: a magnetic rotating ball layer comprising a plurality of magnetic rotating balls arranged in rows and columns, two magnetic poles of each of the magnetic rotating balls having black and white colors respectively, and a soft magnetic layer opposite to magnetic rotating ball layer, the soft magnetic layer comprising a plurality of soft magnetic bodies arranged in rows and columns, wherein each soft magnetic body facing at least one of the rotatable magnetic rotating balls, and a scanning device movably attached to the display panel, the scanning device comprising a plurality of electromagnets facing the soft magnetic layer, the electromagnets arranged in a row for spatially corresponding to each row of the soft magnetic bodies, wherein each of the electromagnets is configured for magnetizing corresponding one of the soft magnetic bodies when the electromagnets are moved along the display panel, and each of the magnetic rotating balls is driven by one of the soft magnetic bodies to display white color or black color.