Electronically addressable microencapsulated ink and display thereof
AssigneeE Ink Corporation
InventorJoseph M. Jacobson
Life of this patent
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Abstract
We describe a system of electronically active inks which may include electronically addressable contrast media, conductors, insulators, resistors, semiconductive materials, magnetic materials, spin materials, piezoelectric materials, optoelectronic, thermoelectric or radio frequency materials. We further describe a printing system capable of laying down said materials in a definite pattern. Such a system may be used for instance to: print a flat panel display complete with onboard drive logic; print a working logic circuit onto any of a large class of substrates; print an electrostatic or piezoelectric motor with onboard logic and feedback or print a working radio transmitter or receiver.
Claims51
A system for forming a particle having an implanted dipole and more than one optical property, comprising:
- a first nozzle producing atomized droplets of a first material, said droplets having a charge of a first polarity and a first optical property;
- and
- a second nozzle producing atomized droplets of a second material, said droplets having a charge of a second polarity and a second optical property;
- wherein said first nozzle and said second nozzle are disposed such that said droplets of said first and second charged materials combine electrostatically to form a particle having an implanted dipole.
A method producing a particle having an implanted dipole and more than one optical property, comprising the steps of:
- providing a first material having a first optical property and a charge of a first polarity to a first atomizing nozzle;
- providing a second material having a second optical property and a charge of a second polarity to a second atomizing nozzle;
- atomizing the first material into droplets emitted by the first nozzle;
- atomizing the second material into droplets emitted by the second nozzle;
- and
- arranging the first and second nozzles so that the emitted droplets of the first and second materials combine electrostatically to form a particle having an implanted dipole.
A system for producing a particle with an implanted dipole and more than one optical property, comprising:
- a first electrode imparting a first charge having a first polarity to a first material having a first optical property;
- a second electrode imparting a second charge having a second polarity to a second material having a second optical property;
- and
- a combiner electrostatically combining said first and second charged materials into a particle with an implanted dipole.
A method for producing a particle with an implanted dipole and more than one optical property, comprising the steps of:
- imparting a first charge of a first polarity to a first material having a first optical property;
- imparting a second charge of a second polarity to a second material having a second optical property;
- and
- combining the first and second materials electrostatically into a particle having an implanted dipole.
A method for fabricating a display, comprising the steps of:
- dispersing a semiconductive material in a binder to form an electrically active ink;
- providing the electrically active ink to a fluid delivery system;
- and
- printing the electrically active ink to a substrate via the fluid delivery system.
A method for depositing electrically addressable contrast media onto a substrate, comprising the steps of:
- disposing adjacent the substrate a microcapsule containing an electrically addressable contrast media to be deposited;
- and
- directing a light source so that it impinges on the microcapsule causing the microcapsule to burst and deposit the electrically active contrast media onto the surface of the substrate.
A method for printing a display, comprising the steps of:
- dispersing an electrically active material in a binder to form an electrically active ink;
- providing a first movable jet depositing the electrically active ink onto a substrate;
- reducing the electrically active ink on the substrate to form a trace on the substrate.
An electronically active ink comprising a microencapsulated system having an optical reflectance which may be modulated by means of application of an electric field.
Dependencies are inferred from the claim text.