Patents by Inventor Charles Honeyman

Charles Honeyman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080043318
    Abstract: A color filter array is provided in an electro-optic display by ink jet printing a plurality of colored areas (22R, 22G, 22B) on one surface of a layer of electro-optic material (12), an adhesive layer or a protective layer. Alternatively, the ink jet printing may be effected on the same layers in various sub-assemblies used to produce electro-optic displays.
    Type: Application
    Filed: September 7, 2007
    Publication date: February 21, 2008
    Applicant: E Ink Corporation
    Inventors: Thomas Whitesides, Andrew Oleson, Guy Danner, Richard Paolini, Charles Honeyman
  • Publication number: 20080023332
    Abstract: A coating of an encapsulated electrophoretic medium is formed on a substrate (106) by dispersing in a fluid (104) a plurality of electrophoretic capsules (102), contacting at least a portion of a substrate (106) with the fluid (104); and applying a potential difference between at least a part of the portion of the substrate (106) contacting the fluid (104) and a counter-electrode (110) in electrical contact with the fluid (104), thereby causing capsules (102) to be deposited upon at least part of the portion of the substrate (106) contacting the fluid (102). Patterned coatings of capsules containing different colors may be deposited in registration with electrodes using multiple capsule deposition steps. Alternatively, patterned coatings of capsules may be formed by applying a fluid form of an electrophoretic medium to a substrate, and applying a temporally varying voltage between an electrode and the substrate. The process may be repeated to allow for deposition of full color displays.
    Type: Application
    Filed: August 3, 2007
    Publication date: January 31, 2008
    Applicant: E INK CORPORATION
    Inventors: Richard Webber, Thomas Whitesides, Craig Herb, Guy Danner, Charles Honeyman, Michael McCreary, Shamus Patry, Richard Paolini, Michael Walls, Stephen Dudek
  • Publication number: 20070201124
    Abstract: A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one monomer the homopolymer of which is incompatible with the suspending fluid. A second, similar electrophoretic medium comprises a suspending fluid, and first and second types of electrically charged particle suspended in the suspending fluid, the two types of particle having differing optical characteristics but both having polymeric shells. The polymeric shells are arranged such that homoaggregation of the two types of particles is thermodynamically favored over heteroaggregation.
    Type: Application
    Filed: May 2, 2007
    Publication date: August 30, 2007
    Applicant: E Ink Corporation
    Inventors: Thomas Whitesides, Qingye Zhou, Robert Zehner, Karl Amundson, Suzanne Balko, Alberto Goenaga, Peter Valianators, Charles Honeyman, Elizabeth Gates, Matthew King, Russell Wilcox
  • Publication number: 20070200795
    Abstract: A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one monomer the homopolymer of which is incompatible with the suspending fluid. A second, similar electrophoretic medium comprises a suspending fluid, and first and second types of electrically charged particle suspended in the suspending fluid, the two types of particle having differing optical characteristics but both having polymeric shells. The polymeric shells are arranged such that homoaggregation of the two types of particles is thermodynamically favored over heteroaggregation.
    Type: Application
    Filed: May 2, 2007
    Publication date: August 30, 2007
    Applicant: E INK CORPORATION
    Inventors: Thomas Whitesides, Qingye Zhou, Robert Zehner, Karl Amundson, Suzanne Balko, Alberto Goenaga, Peter Valianatos, Charles Honeyman, Elizabeth Gates, Matthew King, Russell Wilcox
  • Publication number: 20070152956
    Abstract: Various types of edge seals for protecting electro-optic displays against environmental contaminants are described. In one type of seal, the electro-optic layer is sandwiched between a backplane and a protective sheet and a sealing material extends between the backplane and the protective sheet. In other seals, the protective sheet is secured to the backplane or to a second protective sheet adjacent the backplane. The electro-optic layer can also be sealed between two layers of adhesive or between one layer of adhesive and the backplane. Other seals make use of flexible tapes extending around the periphery of the display.
    Type: Application
    Filed: December 19, 2006
    Publication date: July 5, 2007
    Applicant: E INK CORPORATION
    Inventors: Guy Danner, Shamus Patry, Charles Honeyman, Thomas Whitesides, Michael McCreary, Gregg Duthaler
  • Publication number: 20070146310
    Abstract: The image stability of electrophoretic media, comprising a plurality of particles disposed in a fluid and capable of moving through the fluid upon application of an electric field to the medium, can be improved by including in the fluid either a polystyrene or an aggregating diblock copolymer which forms micelle-like structures in the fluid, the diblock copolymer having a first block soluble in the fluid and a second block not swellable by the fluid. In variable transmission electrophoretic media, haze can be reduced by using as the fluid a mixture of a partially hydrogenated aromatic hydrocarbon and a terpene.
    Type: Application
    Filed: January 23, 2007
    Publication date: June 28, 2007
    Applicant: E INK CORPORATION
    Inventors: Richard Paolini, George Harris, Charles Honeyman, Craig Herb, Richard Webber, Thomas Whitesides
  • Publication number: 20070128352
    Abstract: In electrophoretic media, it is advantageous to use pigment particles having about 1 to 15 per cent by weight of a polymer chemically bonded to, or cross-linked around, the pigment particles. The polymer desirably has a branched chain structure with side chains extending from a main chain. Charged or chargeable groups can be incorporated into the polymer or can be bonded to the particles separately from the polymer. The polymer-coated particles can be prepared by first attaching a polymerizable or polymerization-initiating group to the particle and then reacting the particle with one or more polymerizable monomers or oligomers.
    Type: Application
    Filed: February 9, 2007
    Publication date: June 7, 2007
    Applicant: E INK CORPORATION
    Inventors: Charles Honeyman, Elizabeth Moran, Libing Zhang, Anthony Pullen, Emily Pratt, Kimberly Houde, Matthew King, Craig Herb, Richard Paolini
  • Publication number: 20070109219
    Abstract: An electro-optic display comprises, in order, a backplane comprising a plurality of pixel electrodes; a layer of a solid electro-optic medium; a main adhesive layer; and at least one of a light-transmissive protective layer and a light-transmissive electrically-conductive layer. The electro-optic layer may be in direct contact with the backplane or separated therefrom by a thin auxiliary layer of adhesive. The main adhesive layer may be colored to provide a color filter array. An inverted front plane laminate useful in forming such a display comprises the same layers except that the backplane is replaced by a release sheet. The display combines good low temperature performance and good resolution at higher temperatures.
    Type: Application
    Filed: October 17, 2006
    Publication date: May 17, 2007
    Applicant: E INK CORPORATION
    Inventors: Thomas Whitesides, Richard Paolini, Michael Walls, Seungman Sohn, Michael McCreary, Guy Danner, Charles Honeyman, Gregg Duthaler, Michael Steiner, John Ritter
  • Publication number: 20070097489
    Abstract: A first electro-optic display comprises first and second substrates, and an adhesive layer and a layer of electro-optic material disposed between the first and second substrates, the adhesive layer comprising a mixture of a polymeric adhesive material and a hydroxyl containing polymer having a number average molecular weight not greater than about 5000. A second electro-optic display is similar to the first but has an adhesive layer comprising a thermally-activated cross-linking agent to reduce void growth when the display is subjected to temperature changes.
    Type: Application
    Filed: December 20, 2006
    Publication date: May 3, 2007
    Applicant: E Ink Corporation
    Inventors: Harit Doshi, Charles Honeyman, Seungman Sohn, Simon Pang, Lan Cao, Bin Wu, David Miller, Gregg Duthaler, James Araujo
  • Publication number: 20060256425
    Abstract: An electrophoretic display comprises an electrophoretic medium having a plurality of charged particles suspended in a suspending fluid, and two electrodes disposed on opposed sides of the electrophoretic medium. At least one of the electrodes is light-transmissive and forming a viewing surface. The display has a closed optical state in which the charged particles are spread over substantially the entire viewing surface so that light cannot pass through the medium, and an open optical state in which the electrophoretic particles form chains extending between the electrodes so that light can pass through the electrophoretic medium. Insulating layers are disposed between the electrodes and the electrophoretic medium. Similarly electrophoretic displays are provided equipped with color filter arrays or reflectors.
    Type: Application
    Filed: July 27, 2006
    Publication date: November 16, 2006
    Applicant: E INK CORPORATION
    Inventors: Thomas Whitesides, Michael McCreary, Richard Paolini, Charles Honeyman
  • Publication number: 20060209388
    Abstract: Various improvements are provided in gas-based electrophoretic displays, including (a) the use of water getters to remove water from the gas; (b) the use of electron accepting or donating gases; (c) the use of electrophoretic polymer particles having high glass transition temperatures; (d) lateral movement of electrophoretic particles within the display; and (e) the use of variable thickness coatings on electrodes to provide for gray scale.
    Type: Application
    Filed: January 26, 2006
    Publication date: September 21, 2006
    Applicant: E INK CORPORATION
    Inventors: Thomas Whitesides, Guy Danner, Karl Amundson, Charles Honeyman, Russell Wilcox, Michael McCreary
  • Publication number: 20060198014
    Abstract: An encapsulation material, intended for use in encapsulated electrophoretic displays, comprises the coacervation product of a polyanionic polymer having a vinyl main chain and a plurality of anionic groups bonded to the main chain, with a cationic or zwitterionic water-soluble polymer capable of forming an immiscible second phase on contact with the polyanionic polymer.
    Type: Application
    Filed: January 30, 2006
    Publication date: September 7, 2006
    Applicant: E INK CORPORATION
    Inventors: Michael Steiner, Libing Zhang, Lan Cao, Charles Honeyman, David Miller, Richard Paolini, Thomas Whitesides, Kimberly Houde, Andrew Loxley, Tibyron Quinn
  • Publication number: 20060176267
    Abstract: An electro-optic display comprises first and second substrates and a lamination adhesive layer and a layer of an electro-optic material disposed between the first and second substrates, the lamination adhesive layer having a thickness of from about 14 to about 25 ?m.
    Type: Application
    Filed: March 24, 2006
    Publication date: August 10, 2006
    Applicant: E Ink Corporation
    Inventors: Charles Honeyman, Harit Doshi, Seungman Sohn, Eva Chen, Richard LeCain, Simon Pang, Gregg Duthaler
  • Publication number: 20060024437
    Abstract: Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating.
    Type: Application
    Filed: September 6, 2005
    Publication date: February 2, 2006
    Applicant: E INK CORPORATION
    Inventors: Anthony Pullen, Thomas Whitesides, Charles Honeyman, Barrett Comiskey, Jonathan Albert
  • Publication number: 20060023296
    Abstract: An electrophoretic display comprises an electrophoretic medium having a plurality of charged particles suspended in a suspending fluid, and two electrodes disposed on opposed sides of the electrophoretic medium. At least one of the electrodes is light-transmissive and forming a viewing surface. The display has a closed optical state in which the charged particles are spread over substantially the entire viewing surface so that light cannot pass through the medium, and an open optical state in which the electrophoretic particles form chains extending between the electrodes so that light can pass through the electrophoretic medium. Insulating layers are disposed between the electrodes and the electrophoretic medium. Similarly electrophoretic displays are provided equipped with color filter arrays or reflectors.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 2, 2006
    Applicant: E INK CORPORATION
    Inventors: Thomas Whitesides, Michael McCreary, Richard Paolini, Charles Honeyman
  • Publication number: 20060007527
    Abstract: A two-phase electrophoretic medium comprises a continuous phase and a discontinuous phase. The discontinuous phase comprises a plurality of droplets, each of which comprises a suspending fluid and at least one particle disposed within the suspending fluid and capable of moving through the fluid upon application of an electric field to the electrophoretic medium. The continuous phase surrounds and encapsulates the discontinuous phase. To reduce the humidity sensitivity of the medium, a non-ionizable or crystalline polymer may be used as the continuous phase.
    Type: Application
    Filed: June 21, 2005
    Publication date: January 12, 2006
    Applicant: E INK CORPORATION
    Inventors: Richard Paolini, David Miller, Barrett Comiskey, Joseph Jacobson, Bin Wu, Charles Honeyman, Jian Lin
  • Publication number: 20060007528
    Abstract: An encapsulation material, intended for use in encapsulated electrophoretic displays, comprises the coacervation product of a polyanionic polymer having a vinyl main chain and a plurality of anionic groups bonded to the main chain, with a cationic or zwitterionic water-soluble polymer capable of forming an immiscible second phase on contact with the polyanionic polymer.
    Type: Application
    Filed: September 12, 2005
    Publication date: January 12, 2006
    Applicant: E INK CORPORATION
    Inventors: Lan Cao, Libing Zhang, Charles Honeyman, Kimberly Houde, Andrew Loxley, David Miller, Richard Paolini, Tibyron Quinn, Michael Steiner, Thomas Whitesides
  • Publication number: 20050179642
    Abstract: The invention provides materials and methods (including driving methods) for reducing the effects of remnant voltages in electro-optic displays.
    Type: Application
    Filed: November 24, 2004
    Publication date: August 18, 2005
    Applicant: E INK CORPORATION
    Inventors: Russell Wilcox, Thomas Whitesides, Karl Amundson, Guy Danner, Richard Webber, Charles Honeyman, Lan Cao, Richard Paolini, Rajesh Chebiyam
  • Publication number: 20050168799
    Abstract: A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one monomer the homopolymer of which is incompatible with the suspending fluid. A second, similar electrophoretic medium comprises a suspending fluid, and first and second types of electrically charged particle suspended in the suspending fluid, the two types of particle having differing optical characteristics but both having polymeric shells. The polymeric shells are arranged such that homoaggregation of the two types of particles is thermodynamically favored over heteroaggregation.
    Type: Application
    Filed: October 7, 2004
    Publication date: August 4, 2005
    Applicant: E INK CORPORATION
    Inventors: Thomas Whitesides, Qingye Zhou, Robert Zehner, Karl Amundson, Suzanne Balko, Alberto Goenaga, Peter Valianatos, Charles Honeyman, Elizabeth Gates, Matthew King, Russell Wilcox
  • Publication number: 20050152022
    Abstract: Electro-optic media are disclosed containing a plurality of types of electro-optic media within a single layer.
    Type: Application
    Filed: December 23, 2004
    Publication date: July 14, 2005
    Applicant: E Ink Corporation
    Inventors: Charles Honeyman, Richard Paolini, Michael Steiner, Thomas Whitesides, Andrew Oleson