CA2113570A1 - Electrophoretic display (epid) employing grey scale capability utilizing area modulation - Google Patents

Electrophoretic display (epid) employing grey scale capability utilizing area modulation

Info

Publication number
CA2113570A1
CA2113570A1 CA2113570A CA2113570A CA2113570A1 CA 2113570 A1 CA2113570 A1 CA 2113570A1 CA 2113570 A CA2113570 A CA 2113570A CA 2113570 A CA2113570 A CA 2113570A CA 2113570 A1 CA2113570 A1 CA 2113570A1
Authority
CA
Canada
Prior art keywords
display
grey scale
epid
electrophoretic display
scale capability
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2113570A
Other languages
French (fr)
Other versions
CA2113570C (en
Inventor
Frank J. Disanto
Denis A. Krusos
Christopher Laspina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anixa Biosciences Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2113570A1 publication Critical patent/CA2113570A1/en
Application granted granted Critical
Publication of CA2113570C publication Critical patent/CA2113570C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/06—Passive matrix structure, i.e. with direct application of both column and row voltages to the light emitting or modulating elements, other than LCD or OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • G09G3/2051—Display of intermediate tones using dithering with use of a spatial dither pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

An apparatus provides grey scale capability for an electrophoretic information display (10). The electrophoretic informa-tion display (10) is an XY addressable display with each XY coordinate indicative of a given column (23) and row (25) and defin-ing a pixel. There are described means coupled to display for impressing upon the display a predetermined digital pattern to cause certain pixels in the display to be energized with respect to other pixels in the display where the combination due to the di-gital pattern causes a desired grey scale level to appear on a character or on the background of the display.
CA002113570A 1991-07-15 1991-07-15 Electrophoretic display (epid) employing grey scale capability utilizing area modulation Expired - Fee Related CA2113570C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1991/004834 WO1993002443A1 (en) 1991-07-15 1991-07-15 Electrophoretic display employing grey scale capability utilizing area modulation

Publications (2)

Publication Number Publication Date
CA2113570A1 true CA2113570A1 (en) 1993-02-04
CA2113570C CA2113570C (en) 1996-05-07

Family

ID=22225656

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002113570A Expired - Fee Related CA2113570C (en) 1991-07-15 1991-07-15 Electrophoretic display (epid) employing grey scale capability utilizing area modulation

Country Status (5)

Country Link
EP (1) EP0595812B1 (en)
JP (1) JP2958114B2 (en)
CA (1) CA2113570C (en)
DE (1) DE69123604T2 (en)
WO (1) WO1993002443A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710540B1 (en) 1995-07-20 2004-03-23 E Ink Corporation Electrostatically-addressable electrophoretic display
US6664944B1 (en) 1995-07-20 2003-12-16 E-Ink Corporation Rear electrode structures for electrophoretic displays
US7352353B2 (en) 1995-07-20 2008-04-01 E Ink Corporation Electrostatically addressable electrophoretic display
US7304634B2 (en) 1995-07-20 2007-12-04 E Ink Corporation Rear electrode structures for electrophoretic displays
US6124851A (en) 1995-07-20 2000-09-26 E Ink Corporation Electronic book with multiple page displays
US6177921B1 (en) 1997-08-28 2001-01-23 E Ink Corporation Printable electrode structures for displays
US6232950B1 (en) 1997-08-28 2001-05-15 E Ink Corporation Rear electrode structures for displays
US6704133B2 (en) 1998-03-18 2004-03-09 E-Ink Corporation Electro-optic display overlays and systems for addressing such displays
DE69917441T2 (en) * 1998-03-18 2004-09-23 E-Ink Corp., Cambridge ELECTROPHORETIC DISPLAY
US7075502B1 (en) 1998-04-10 2006-07-11 E Ink Corporation Full color reflective display with multichromatic sub-pixels
JP4651193B2 (en) 1998-05-12 2011-03-16 イー インク コーポレイション Microencapsulated electrophoretic electrostatically addressed media for drawing device applications
ATE276536T1 (en) 1998-07-08 2004-10-15 E Ink Corp METHOD FOR IMPROVING COLOR RENDERING IN ELECTROPHORETIC DEVICES USING MICROCAPSULES
US6724519B1 (en) 1998-12-21 2004-04-20 E-Ink Corporation Protective electrodes for electrophoretic displays
US6504524B1 (en) 2000-03-08 2003-01-07 E Ink Corporation Addressing methods for displays having zero time-average field
US6531997B1 (en) 1999-04-30 2003-03-11 E Ink Corporation Methods for addressing electrophoretic displays
JP2006285286A (en) * 2000-04-25 2006-10-19 Fuji Xerox Co Ltd Image display device and image forming method
EP1947505A1 (en) 2000-05-26 2008-07-23 Seiko Epson Corporation Display device and recording medium
US20020060321A1 (en) 2000-07-14 2002-05-23 Kazlas Peter T. Minimally- patterned, thin-film semiconductor devices for display applications
US7202847B2 (en) 2002-06-28 2007-04-10 E Ink Corporation Voltage modulated driver circuits for electro-optic displays
CN102044205B (en) * 2009-10-20 2012-11-28 晶宏半导体股份有限公司 Electronic paper apparatus display method
US7957054B1 (en) 2009-12-21 2011-06-07 Hewlett-Packard Development Company, L.P. Electro-optical display systems
US8089687B2 (en) 2009-12-21 2012-01-03 Hewlett-Packard Development Company, L.P. Electro-optical display systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703318A (en) * 1984-03-30 1987-10-27 Wang Laboratories, Inc. Character-based monochromatic representation of color images
US4688031A (en) * 1984-03-30 1987-08-18 Wang Laboratories, Inc. Monochromatic representation of color images
US4833464A (en) * 1987-09-14 1989-05-23 Copytele, Inc. Electrophoretic information display (EPID) apparatus employing grey scale capability

Also Published As

Publication number Publication date
WO1993002443A1 (en) 1993-02-04
JPH07500680A (en) 1995-01-19
JP2958114B2 (en) 1999-10-06
DE69123604D1 (en) 1997-01-23
EP0595812A1 (en) 1994-05-11
EP0595812A4 (en) 1995-03-01
EP0595812B1 (en) 1996-12-11
CA2113570C (en) 1996-05-07
DE69123604T2 (en) 1997-04-17

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Legal Events

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