Patents by Inventor Libing Zhang
Libing Zhang 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).
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Publication number: 20120212462Abstract: 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.Type: ApplicationFiled: May 2, 2012Publication date: August 23, 2012Applicant: E INK CORPORATIONInventors: Jonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson, Libing Zhang, Andrew Loxley, Robert D. Feeney, Paul S. Drzaic, Ian D. Morrison
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Patent number: 8213076Abstract: 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.Type: GrantFiled: July 21, 2010Date of Patent: July 3, 2012Assignee: E Ink CorporationInventors: Jonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson, Libing Zhang, Andrew Loxley, Robert D. Feeney, Paul S. Drzaic, Ian D. Morrison
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Patent number: 8115729Abstract: The invention relates to methods and materials for controlling stability and color intensity in an electrophoretic display element. Filler particles in the electrophoretic display element, serves as a medium that the electrophoretic particles must travel through during switching between optical states of the display. The filler particles provide improved control over the color intensity of the electrophoretic display element. In addition, the filler particles create resistance to the migration of the electrophoretic particles, thereby improving the bistability of the electrophoretic displays and inhibiting settling of the electrophoretic particles. Also, migration resistance provided by the filler particles can enable threshold addressing of an electrophoretic display.Type: GrantFiled: March 16, 2006Date of Patent: February 14, 2012Assignee: E Ink CorporationInventors: Guy M. Danner, Karl R. Amundson, Craig Herb, Libing Zhang
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Patent number: 7843626Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.Type: GrantFiled: April 2, 2009Date of Patent: November 30, 2010Assignee: E Ink CorporationInventors: Karl R. Amundson, Robert W. Zehner, Richard M. Webber, Katharine Geramita, Libing Zhang, Andrew L. Loxley, Gregg M. Duthaler, John E. Ritter, Michael L. Steiner, Mavyn M. Holman, Justin J. Abramson, Glen Crossley
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Publication number: 20100283806Abstract: 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.Type: ApplicationFiled: July 21, 2010Publication date: November 11, 2010Applicant: E Ink CorporationInventors: Jonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson, Libing Zhang, Andrew Loxley, Robert D. Feeney, Paul S. Drzaic, Ian D. Morrison
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Patent number: 7791789Abstract: 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.Type: GrantFiled: May 9, 2008Date of Patent: September 7, 2010Assignee: E Ink CorporationInventors: Jonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson, Libing Zhang, Andrew Loxley, Robert D. Feeney, Paul S. Drzaic, Ian D. Morrison
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Publication number: 20090225397Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.Type: ApplicationFiled: April 2, 2009Publication date: September 10, 2009Applicant: E Ink CorporationInventors: Karl R. Amundson, Robert W. Zehner, Richard M. Webber, Katharine Geramita, Libing Zhang, Andrew Loxley, Gregg M. Duthaler, John E. Ritter, Michael L. Steiner, Mavyn M. Holman, Justin J. Abramson, Glen Crossley
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Patent number: 7535624Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.Type: GrantFiled: July 5, 2006Date of Patent: May 19, 2009Assignee: E Ink CorporationInventors: Karl R. Amundson, Robert W. Zehner, Richard M. Webber, Katherine Geramita, Libing Zhang, Andrew L. Loxley, Gregg M. Duthaler, John E. Ritter, Michael L. Steiner, Mavyn M. Holman, Justin J. Abramson, Glen Crossley
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Publication number: 20090040594Abstract: 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.Type: ApplicationFiled: May 9, 2008Publication date: February 12, 2009Applicant: E INK CORPORATIONInventors: Jonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson, Libing Zhang, Andrew Loxley, Robert D. Feeney, Paul S. Drzaic, Ian D. Morrison
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Patent number: 7411720Abstract: 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: GrantFiled: February 9, 2007Date of Patent: August 12, 2008Assignee: E Ink CorporationInventors: Charles Howie Honeyman, Elizabeth Moran Gates, Libing Zhang, Anthony Edward Pullen, Emily J. Pratt, Kimberly L. Houde, Matthew A. King, Craig A. Herb, Richard J. Paolini, Jr.
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Patent number: 7236290Abstract: An electrophoretic medium comprises a liquid and at least one particle disposed within the liquid and capable of moving therethrough on application of an electric field to the medium. The medium further comprises a free radical scavenger selected from the group consisting of (a) stable free radicals; and (b) polymeric free radical scavengers comprising a plurality of free radical scavenging groups attached to a polymeric chain. The medium is desirably encapsulated.Type: GrantFiled: July 25, 2000Date of Patent: June 26, 2007Assignee: E Ink CorporationInventors: Libing Zhang, Charles H. Honeyman
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Publication number: 20070128352Abstract: 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: ApplicationFiled: February 9, 2007Publication date: June 7, 2007Applicant: E INK CORPORATIONInventors: Charles Honeyman, Elizabeth Moran, Libing Zhang, Anthony Pullen, Emily Pratt, Kimberly Houde, Matthew King, Craig Herb, Richard Paolini
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Patent number: 7202991Abstract: 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: GrantFiled: January 30, 2006Date of Patent: April 10, 2007Assignee: E Ink CorporationInventors: Libing Zhang, Kimberly L. Houde, Andrew L. Loxley, Richard J. Paolini, Jr., Michael L. Steiner
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Publication number: 20070035808Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.Type: ApplicationFiled: July 5, 2006Publication date: February 15, 2007Applicant: E INK CORPORATIONInventors: Karl Amundson, Robert Zehner, Richard Webber, Katharine Geramita, Libing Zhang, Andrew Loxley, Gregg Duthaler, John Ritter, Michael Steiner, Mavyn Holman, Justin Abramson, Glen Crossley
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Publication number: 20060245038Abstract: Disclosed herein are novel electrophoretic displays and materials useful in fabricating such displays. In particular, novel encapsulated displays are disclosed. Particles encapsulated therein are dispersed within a suspending, or electrophoretic, fluid. This fluid may be a mixture of two or more fluids or may be a single fluid. The displays may further comprise particles dispersed in a suspending fluid, wherein the particles contain a liquid. In either case, the suspending fluid may have a density or refractive index substantially matched to that of the particles dispersed therein. Finally, also disclosed herein are electro-osmotic displays. These displays comprise at least one capsule containing either a cellulosic or gel-like internal phase and a liquid phase, or containing two or more immiscible fluids. Application of electric fields to any of the electrophoretic displays described herein affects an optical property of the display.Type: ApplicationFiled: June 27, 2006Publication date: November 2, 2006Applicant: E INK CORPORATIONInventors: Jonathan Albert, Barrett Comiskey, Joseph Jacobson, Libing Zhang, Andrew Loxley, Robert Feeney, Paul Drzaic, Ian Morrison
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Publication number: 20060202949Abstract: The invention relates to methods and materials for controlling stability and color intensity in an electrophoretic display element. Filler particles in the electrophoretic display element, serves as a medium that the electrophoretic particles must travel through during switching between optical states of the display. The filler particles provide improved control over the color intensity of the electrophoretic display element. In addition, the filler particles create resistance to the migration of the electrophoretic particles, thereby improving the bistability of the electrophoretic displays and inhibiting settling of the electrophoretic particles. Also, migration resistance provided by the filler particles can enable threshold addressing of an electrophoretic display.Type: ApplicationFiled: March 16, 2006Publication date: September 14, 2006Applicant: E INK CORPORATIONInventors: Guy Danner, Karl Amundson, Craig Herb, Libing Zhang
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Publication number: 20060198014Abstract: 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: ApplicationFiled: January 30, 2006Publication date: September 7, 2006Applicant: E INK CORPORATIONInventors: Michael Steiner, Libing Zhang, Lan Cao, Charles Honeyman, David Miller, Richard Paolini, Thomas Whitesides, Kimberly Houde, Andrew Loxley, Tibyron Quinn
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Patent number: 7071913Abstract: Disclosed herein are novel electrophoretic displays and materials useful in fabricating such displays. In particular, novel encapsulated displays are disclosed. Particles encapsulated therein are dispersed within a suspending, or electrophoretic, fluid. This fluid may be a mixture of two or more fluids or may be a single fluid. The displays may further comprise particles dispersed in a suspending fluid, wherein the particles contain a liquid. In either case, the suspending fluid may have a density or refractive index substantially matched to that of the particles dispersed therein. Finally, also disclosed herein are electro-osmotic displays. These displays comprise at least one capsule containing either a cellulosic or gel-like internal phase and a liquid phase, or containing two or more immiscible fluids. Application of electric fields to any of the electrophoretic displays described herein affects an optical property of the display.Type: GrantFiled: June 29, 2001Date of Patent: July 4, 2006Assignee: E Ink CorporationInventors: Jonathan D. Albert, Barrett Comiskey, Joseph M. Jacobson, Libing Zhang, Andrew Loxley, Robert Feeney, Paul Drzaic, Ian Morrison
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Patent number: 7061663Abstract: 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: GrantFiled: September 12, 2005Date of Patent: June 13, 2006Assignee: E Ink CorporationInventors: Lan Cao, Libing Zhang, Charles H. Honeyman, Kimberly L. Houde, Andrew L. Loxley, David D. Miller, Richard J. Paolini, Jr., Tibyron Quinn, Michael L. Steiner, Thomas H. Whitesides
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Patent number: 7038655Abstract: An electrophoretic display has a viewing surface, and includes an image pixel. The image pixel includes a first plurality of particles having a first mobility, and a second plurality of particles having a second mobility. At a first addressing voltage, the first mobility is greater than the second mobility. At a second addressing voltage, the second mobility is greater than the first mobility. At least one of the first and second mobilities is a variable function of voltage, i.e., a function of an applied electric field. Application of the first addressing voltage produces a first optical state, which is determined by a motion of the first plurality of particles. Application of the second addressing voltage produces a second optical state determined by a motion of the second plurality of particles.Type: GrantFiled: November 18, 2002Date of Patent: May 2, 2006Assignee: E Ink CorporationInventors: Craig A. Herb, Libing Zhang