Pressure-sensitive writing media comprising electrophoretic materials
AssigneeE Ink Corporation
InventorsSunil Krishna SAINIS, Seth J. BISHOP, Kosta LADAVAC, Stephen J. TELFER, Richard J. PAOLINI, JR.
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Abstract
Systems and methods are disclosed for pressure-sensitive, electrophoretic displays, which may optionally include haptic feedback. A display may comprise a first conductive layer having a pressure-sensitive conductivity and an electrophoretic layer positioned adjacent to the first conductive layer, wherein the electrophoretic layer is in electrical communication with the first conductive layer and is configured to locally change state based on a pressure applied to the first conductive layer. Local and global writing and erasing of the display can also be achieved.
Claims19
A pressure-sensitive electrophoretic display, the display comprising:
- a magnetic layer configured to produce a magnetic field;
- an electrophoretic layer comprising an electrically- and magnetically-addressable ink medium and configured to locally change state based on an applied pressure;
- and
- a deformable layer located between the magnetic layer and the electrophoretic layer,
- wherein applying a pressure to a location on the pressure-sensitive, electrophoretic display causes a displacement of at least a part of the deformable layer, thereby causing a change in the magnetic field experienced by a portion of the electrophoretic layer located at the location, thereby causing a local change of state in the electrophoretic layer.
Dependencies are inferred from the claim text.