Ian R Morrison

US Patent:

6445489, Sep 3, 2002

Filed:

Mar 18, 1999

Appl. No.:

09/272716

Inventors:

Joseph M. Jacobson - Newton Centre MA
Paul Drzaic - Lexington MA
Barrett Comiskey - Cambridge MA
Russell J. Wilcox - Natick MA
Ian Morrison - Acton MA

Assignee:

E Ink Corporation - Cambridge MA

International Classification:

G02B 2600

US Classification:

359296, 345107, 204450, 204606

Abstract:

Electrophoretic displays include a light-emitting layer, a photoconductive layer, and an electrophoretic layer. The light-emitting layer may be an organic, light-emitting material, or organic, light-emitting diode, which is addressable using a multiplex addressing drive scheme. The impedance of the photoconductive layer is lowered when struck by light from the light-emitting layer. As a result of the lowered impedance of the photoconductive layer, the electrophoretic layer, which itself cannot be multiplexed, is addressed at a lower, subthreshold voltage.

US Patent:

6538801, Mar 25, 2003

Filed:

Nov 12, 2001

Appl. No.:

10/054721

Inventors:

Joseph M. Jacobson - Newton Centre MA
Paul S. Drzaic - Morgan Hill CA
Ian D. Morrison - Acton MA
Anthony E. Pullen - Belmont MA
Jianna Wang - Waltham MA
Robert W. Zehner - Cambridge MA
Caprice L. Gray - Somerville MA
Gregg M. Duthaler - Needham MA
Michael McCreary - Acton MA
Emily J. Pratt - Brookline MA

Assignee:

E Ink Corporation - Cambridge MA

International Classification:

G09G 334

US Classification:

359296, 345107

Abstract:

An electrophoretic display comprises a fluid and a plurality of nanoparticles having diameters substantially less the wavelengths of visible light such that, when the nanoparticles are in a dispersed state and uniformly dispersed throughout the fluid, the fluid presents a first optical characteristic, but when the nanoparticles are in an aggregated state in which they are gathered into aggregates substantially larger than the individual nanoparticles, the fluid presents a second optical characteristic different from the first optical characteristic. The electrophoretic display further comprises at least one electrode arranged to apply an electric field to the nanoparticle-containing fluid and thereby move the nanoparticles between their dispersed and aggregated states. Various compound particles comprising multiple nanoparticles, alone or in combination with larger objects, and processes for the preparation of such compound particles, are also described.

US Patent:

6721083, Apr 13, 2004

Filed:

Nov 4, 2002

Appl. No.:

10/065617

Inventors:

Joseph M. Jacobson - Newton Centre MA
Anthony E. Pullen - Belmont MA
Thomas H. Whitesides - Cambridge MA
Paul S. Drzaic - Morgan Hill CA
Ian D. Morrison - Acton MA
Jianna Wang - Waltham MA
Caprice L. Gray - Somerville MA

Assignee:

E Ink Corporation - Cambridge MA

International Classification:

G02B 2600

US Classification:

359296, 345107, 264 41, 264 43, 106 3116

Abstract:

An electrophoretic display comprises a fluid and a plurality of nanoparticles having diameters substantially less the wavelengths of visible light such that, when the nanoparticles are in a dispersed state and uniformly dispersed throughout the fluid, the fluid presents a first optical characteristic, but when the nanoparticles are in an aggregated state in which they are gathered into aggregates substantially larger than the individual nanoparticles, the fluid presents a second optical characteristic different from the first optical characteristic. The electrophoretic display further comprises at least one electrode arranged to apply an electric field to the nanoparticle-containing fluid and thereby move the nanoparticles between their dispersed and aggregated states. Various compound particles comprising multiple nanoparticles, alone or in combination with larger objects, and processes for the preparation of such compound particles, are also described.

US Patent:

6950220, Sep 27, 2005

Filed:

Mar 18, 2003

Appl. No.:

10/249128

Inventors:

Justin Abramson - Wayland MA, US
Karl R. Amundson - Cambridge MA, US
Guy M. Danner - Somerville MA, US
Gregg M. Duthaler - Needham MA, US
Holly G. Gates - Somerville MA, US
Charles H. Honeyman - Honeyman MA, US
Ara N. Knaian - Cambridge MA, US
Ian D. Morrison - Acton MA, US
Steven J. O'Neil - Pembroke MA, US
Anthony Edward Pullen - Belmont MA, US
Jianna Wang - Marlborough MA, US
Jonathan L. Zalesky - Cambridge MA, US
Robert W. Zehner - Cambridge MA, US
John Edward Cronin - Williston VT, US

Assignee:

E Ink Corporation - Cambridge MA

International Classification:

G02F001/15

US Classification:

359265, 359267, 359273

Abstract:

The invention relates to electro-optic displays and methods for driving such displays. The invention provides (i) electrochromic displays with solid charge transport layers; (ii) apparatus and methods for improving the contrast and reducing the cost of electrochromic displays; (iii) apparatus and methods for sealing electrochromic displays from the outside environment and preventing ingress of contaminants into such a display; and (iv) methods for adjusting the driving of electro-optic displays to allow for environmental and operating parameters.

US Patent:

7667684, Feb 23, 2010

Filed:

Apr 2, 2004

Appl. No.:

10/817464

Inventors:

Joseph M. Jacobson - Newton Centre MA, US
Ian D. Morrison - Acton MA, US
Russell J. Wilcox - Natick MA, US
Paul Drzaic - Lexington MA, US

Assignee:

E Ink Corporation - Cambridge MA

International Classification:

G09G 3/34

US Classification:

345107

Abstract:

A method for manufacturing a full color, reflective display includes the steps of depositing a first plurality of electrophoretic display elements in substantial registration with a first electrode and a second plurality of electrophoretic display elements in substantial registration with a second electrode. The electrophoretic display elements include a capsule containing a species of particles dispersed in a suspending fluid. The selective deposition of the display elements can be achieved by ink-jet printing methods, screen printing methods or other printing methods. In some embodiments the electrodes are printed onto the substrate before selective deposition of the display elements, while in other embodiments the substrate is provided having the electrodes already disposed on it. In still other embodiments, the sequence of printing of electrodes and electrophoretic display elements can be varied.

US Patent:

7787169, Aug 31, 2010

Filed:

Mar 23, 2005

Appl. No.:

10/907171

Inventors:

Justin J. Abramson - Wayland MA, US
Karl R. Amundson - Cambridge MA, US
Guy M. Danner - Somerville MA, US
Gregg M. Duthaler - Needham MA, US
Holly G. Gates - Somerville MA, US
Charles H. Honeyman - Roslindale MA, US
Ara N. Knaian - Newton MA, US
Ian D. Morrison - Acton MA, US
Steven J. O'Neil - Pembroke MA, US
Anthony Edward Pullen - Belmont MA, US
Jianna Wang - Grafton MA, US
Jonathan L. Zalesky - Watertown MA, US
Robert W. Zehner - Arlington MA, US
John E. Cronin - Williston VT, US

Assignee:

E Ink Corporation - Cambridge MA

International Classification:

G02F 1/153

US Classification:

359267, 359296, 359264

Abstract:

The invention relates to electro-optic displays and methods for driving such displays. The invention provides (i) electrochromic displays with solid charge transport layers; (ii) apparatus and methods for improving the contrast and reducing the cost of electrochromic displays; (iii) apparatus and methods for sealing electrochromic displays from the outside environment and preventing ingress of contaminants into such a display; and (iv) methods for adjusting the driving of electro-optic displays to allow for environmental and operating parameters.

US Patent:

20020113770, Aug 22, 2002

Filed:

Jul 8, 1999

Appl. No.:

09/349806

Inventors:

JOSEPH M. JACOBSON - NEWTON CENTRE MA, US
IAN D. MORRISON - ACTON MA, US
RUSSELL J. WILCOX - NATICK MA, US
PAUL DRZAIC - LEXINGTON MA, US

International Classification:

B05D005/12
G09G003/34

US Classification:

345/107000, 427/058000, 427/074000, 427/077000

Abstract:

A method for manufacturing a full color, reflective display includes the steps of depositing a first plurality of electrophoretic display elements in substantial registration with a first electrode and a second plurality of electrophoretic display elements in substantial registration with a second electrode. The electrophoretic display elements include a capsule containing a species of particles dispersed in a suspending fluid. The selective deposition of the display elements can be achieved by ink-jet printing methods, screen printing methods or other printing methods. In some embodiments the electrodes are printed onto the substrate before selective deposition of the display elements, while in other embodiments the substrate is provided having the electrodes already disposed on it. In still other embodiments, the sequence of printing of electrodes and electrophoretic display elements can be varied.

US Patent:

20100103502, Apr 29, 2010

Filed:

Oct 30, 2009

Appl. No.:

12/609158

Inventors:

Joseph M. Jacobson - Newton Centre MA, US
Ian D. Morrison - Acton MA, US
Russell J. Wilcox - Natick MA, US
Paul Drzaic - Morgan Hill CA, US

Assignee:

E INK CORPORATION - Cambridge MA

International Classification:

G02F 1/167
B05D 5/06

US Classification:

359296, 427 64

Abstract:

A method for manufacturing a full color, reflective display includes the steps of depositing a first plurality of electrophoretic display elements in substantial registration with a first electrode and a second plurality of electrophoretic display elements in substantial registration with a second electrode. The electrophoretic display elements include a capsule containing a species of particles dispersed in a suspending fluid. The selective deposition of the display elements can be achieved by ink-jet printing methods, screen printing methods or other printing methods. In some embodiments the electrodes are printed onto the substrate before selective deposition of the display elements, while in other embodiments the substrate is provided having the electrodes already disposed on it. In still other embodiments, the sequence of printing of electrodes and electrophoretic display elements can be varied.