Patent attributes
An electrophoretic display includes a display panel and a scanning device. The display panel includes a magnetic rotating ball layer and a soft magnetic layer. The magnetic rotating ball layer includes a plurality of magnetic rotating balls. Two magnetic poles of each magnetic rotating ball have white and black colors respectively. The soft magnetic layer includes a plurality of soft magnetic bodies each facing at least one of the rotatable magnetic rotating balls. The scanning device is movably attached to the display panel and includes a plurality of electromagnets facing the soft magnetic layer. The electromagnets are spatially corresponding to a row of the soft magnetic bodies. Each electromagnet magnetize corresponding one soft magnetic body when the electromagnets are moved along the display panel. Each magnetic rotating ball corresponding to one soft magnetic body is driven by one soft magnetic body to display white or black colors.
