Search

Joanna Au Phones & Addresses

  • Arlington, MA
  • 374 Columbus Ave APT C, Boston, MA 02116 (508) 982-3699
  • 311 Beacon St, Boston, MA 02116 (617) 247-8841
  • Brighton, MA
  • 10 Ford Ln, Framingham, MA 01701 (508) 879-8338
  • Cambridge, MA

Publications

Us Patents

Methods For Driving Electro-Optic Displays, And Apparatus For Use Therein

View page
US Patent:
7312794, Dec 25, 2007
Filed:
Jun 24, 2005
Appl. No.:
11/160455
Inventors:
Robert W. Zehner - New York NY, US
Holly G. Gates - Somerville MA, US
Karl R. Amundson - Cambridge MA, US
Joanna Au - Brighton MA, US
Ara N. Knaian - Newton MA, US
Jonathan L. Zalesky - Watertown MA, US
Alexi C. Arango - Somerville MA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
H04N 1/46
US Classification:
345214, 345 89, 345601, 345602, 345690, 349 86, 359296
Abstract:
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Methods For Driving Bistable Electro-Optic Displays, And Apparatus For Use Therein

View page
US Patent:
7688297, Mar 30, 2010
Filed:
Feb 27, 2006
Appl. No.:
11/307887
Inventors:
Robert W. Zehner - New York NY, US
Holly G. Gates - Somerville MA, US
Karl R. Amundson - Cambridge MA, US
Joanna F. Au - Brighton MA, US
Ara N. Knaian - Newton MA, US
Jonathan L. Zalesky - Watertown MA, US
Alexi C. Arango - Somerville MA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
H04N 1/46
US Classification:
345 89, 345 36, 345 48, 345 77, 345 84, 345210, 345214, 358455, 358519, 382169
Abstract:
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Methods For Driving Bistable Electro-Optic Displays, And Apparatus For Use Therein

View page
US Patent:
7733335, Jun 8, 2010
Filed:
Feb 27, 2006
Appl. No.:
11/307886
Inventors:
Robert W. Zehner - New York NY, US
Holly G. Gates - Somerville MA, US
Alexi C. Arango - Somerville MA, US
Karl R. Amundson - Cambridge MA, US
Joanna F. Au - Brighton MA, US
Ara N. Knaian - Newton MA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
G09G 3/34
US Classification:
345204, 345 36, 345 63, 345107, 345214, 345601, 358519
Abstract:
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Flexible Electronic Circuits And Displays Including A Backplane Comprising A Patterned Metal Foil Having A Plurality Of Apertures Extending Therethrough

View page
US Patent:
7893435, Feb 22, 2011
Filed:
Nov 25, 2003
Appl. No.:
10/707184
Inventors:
Peter T. Kazlas - Sudbury MA, US
Joanna F. Au - Brighton MA, US
Yu Chen - Milpitas CA, US
Nathan R. Kane - Arlington MA, US
David John Cole - Medway MA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
H01L 29/04
US Classification:
257 59, 257E51005, 257E29151, 359242, 359243, 359245, 438149
Abstract:
A backplane for use in an electro-optic display comprises a patterned metal foil having a plurality of apertures extending therethrough, coated on at least side with an insulating polymeric material and having a plurality of thin film electronic devices provided on the insulating polymeric material.

Methods For Driving Electrophoretic Displays

View page
US Patent:
8174490, May 8, 2012
Filed:
Aug 28, 2007
Appl. No.:
11/845919
Inventors:
Thomas H. Whitesides - Somerville MA, US
Joanna F. Au - Framingham MA, US
Karl R. Amundson - Cambridge MA, US
Robert W. Zehner - Belmont MA, US
Ara N. Knaian - Newton MA, US
Benjamin Zion - State College PA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
G09G 3/34
US Classification:
345107, 349 1, 359296
Abstract:
A pixel of an electrophoretic display is driven from one extreme optical state to a second optical state different from the one extreme optical state by applying to the pixel a first drive pulse of one polarity; and thereafter applying to the pixel a second drive pulse of the opposite polarity, the second drive pulse being effective to drive the pixel to the second optical state.

Methods For Driving Bistable Electro-Optic Displays, And Apparatus For Use Therein

View page
US Patent:
8558785, Oct 15, 2013
Filed:
May 18, 2010
Appl. No.:
12/782344
Inventors:
Robert W. Zehner - Belmont MA, US
Holly G. Gates - Somerville MA, US
Karl R. Amundson - Cambridge MA, US
Joanna F. Au - Boston MA, US
Ara N. Knaian - Newton MA, US
Alexi C. Arango - Somerville MA, US
Jonathan L. Zalesky - Watertown MA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
G09G 3/36
G09G 3/38
US Classification:
345107, 345 95, 345105
Abstract:
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Methods For Driving Bistable Electro-Optic Displays, And Apparatus For Use Therein

View page
US Patent:
20030137521, Jul 24, 2003
Filed:
Nov 20, 2002
Appl. No.:
10/065795
Inventors:
Robert Zehner - Somerville MA, US
Holly Gates - Somerville MA, US
Karl Amundson - Cambridge MA, US
Joanna Au - Boston MA, US
Ara Knaian - Cambridge MA, US
Jonathan Zalesky - Cambridge MA, US
Alexi Arango - Somerville MA, US
Assignee:
E Ink Corporation - Cambridge MA
International Classification:
G09G005/02
US Classification:
345/589000
Abstract:
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Methods For Driving Bistable Electro-Optic Displays, And Apparatus For Use Therein

View page
US Patent:
20100220121, Sep 2, 2010
Filed:
May 17, 2010
Appl. No.:
12/780998
Inventors:
Robert W. Zehner - Belmont MA, US
Holly G. Gates - Somerville MA, US
Karl R. Amundson - Cambridge MA, US
Joanna F. Au - Boston MA, US
Ara N. Knaian - Newton MA, US
Jonathan L. Zalesky - Watertown MA, US
Alexi C. Arango - Somerville MA, US
Assignee:
E INK CORPORATION - Cambridge MA
International Classification:
G09G 5/10
US Classification:
345690
Abstract:
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.
Joanna F Au from Arlington, MA, age ~48 Get Report