Patent ID: 7911681

Claim:
A display system including at least one display cell comprising: an assembly including at least a first electrode and a second electrode and including mutually non-miscible first and second liquids, wherein either one of said first and second electrodes is electrically insulated from said first and second liquids, said first liquid has electrical conductivity or polarity, a voltage is applied to one or both of said first and second electrodes, whereby said first liquid and said second liquid vary in position to produce a display, and after an applied voltage is shut off at a position to which said first and second liquids have migrated, positions of said first and second liquids that have migrated are retained to provide a memory capability; a set of substrates, at least one of which is transparent; a wall portion for holding said set of substrates in opposition to one another to define a liquid confining space; and the first electrode and a third electrode are located on a side of one substrate to face said liquid confining space, and are electrically independent, further comprising a liquid retainer means for retaining the positions of said first and second liquids that have migrated, after the applied voltage is shut off at the positions of said first and second liquids that have migrated, the assembly further comprising: an intermediate partition located between said first and third electrodes; and the second electrode is located on another substrate that faces said liquid confining space, wherein said first and third electrodes are electrically insulated from said first and second liquids, upon application of a voltage to said first electrode and said second electrode or to said third electrode and said second electrode, said second liquid transits said intermediate partition to migrate between a position adjacent to said first electrode and a position adjacent to said third electrode; and said intermediate partition provides said liquid retainer means.