Stylus-based addressing structures for displays
AssigneeE Ink Corporation
InventorsJonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson
Life of this patent
Estimating the term…
Abstract
Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surface to enable greater viewing angle and contrast. Another scheme includes an electrode structure that facilitates manufacture and control of a color display. Another electrode structure facilitates addressing a display using an electrostatic stylus. Methods of using the disclosed electrode structures are also disclosed. Another scheme includes devices combining display materials with silicon transistor addressing structures.
Claims20
An electrophoretic display comprising:
- an encapsulated electrophoretic display medium comprising a plurality of cavities disposed in a polymeric matrix, at least one of the plurality of cavities containing a suspending fluid and a plurality of white particles;
- a cyan-colored electrode disposed adjacent said cavity;
- a magenta-colored electrode disposed adjacent said cavity, said magenta-colored electrode spaced apart from said cyan-colored electrode;
- a yellow-colored electrode disposed adjacent said cavity, said yellow-colored electrode spaced apart from said cyan-colored electrode and said magenta-colored electrode;
- and
- a white electrode adjacent said cavity, said white electrode spaced apart from said cyan-colored electrode, said yellow-colored electrode, and said magenta-colored electrode;
- wherein application of a voltage potential to said cyan-colored electrode, magenta-colored electrode, and yellow-colored electrode causes said white particles to migrate within the cavity to locations adjacent said cyan-colored electrode, said magenta-colored electrode, and said yellow-colored electrode causing said cavity to appear white, and wherein application of a second voltage potential to said cyan-colored, said magenta-colored, and said yellow-colored electrode causes said white particles to migrate within said cavity to a location adjacent said white electrode causing said cavity to appear substantially black.
An electrophoretic display comprising:
- an encapsulated electrophoretic display medium comprising a plurality of cavities disposed in a polymeric matrix, at least one of the plurality of cavities containing a suspending fluid and a plurality of particles, the particles having a first color, the cavity having a first surface, and a second surface on the opposed side of the cavity from the first surface;
- a first electrode disposed adjacent the second surface of the cavity and having a second color;
- and
- a second electrode disposed adjacent the second surface of the cavity and having a third color different from the second color,
- wherein application of voltage potentials to the first and second electrodes can shift the cavity between a first visual state, in which the particles lie adjacent the first electrode but not adjacent the second electrode, and a second visual state, in which the particles do not lie adjacent the first electrode but do lie adjacent the second electrode, the first and second visual states being visibly different to the viewer viewing the display through the first surface of the cavity.
An electrophoretic display comprising:
- an encapsulated electrophoretic display medium comprising a plurality of cavities disposed in a polymeric matrix, at least one of the plurality of cavities containing a suspending fluid and a plurality of particles, the particles having a first color, the cavity having a first surface, and a second surface on the opposed side of the cavity from the first surface;
- and
- first and second electrodes, both the first and second electrodes being disposed adjacent one of the first and second surfaces of the cavity,
- wherein application of voltage potentials to the first and second electrodes can shift the cavity between a first visual state, in which the particles lie adjacent the first electrode but not adjacent the second electrode, and a second visual state, in which the particles are dispersed throughout the suspending fluid, the first and second visual states being visibly different to the viewer viewing the display through the first surface of the cavity.
Dependencies are inferred from the claim text.