CA2113570A1 - Electrophoretic display (epid) employing grey scale capability utilizing area modulation - Google Patents
Electrophoretic display (epid) employing grey scale capability utilizing area modulationInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US6664944B1 (en) | 1995-07-20 | 2003-12-16 | E-Ink Corporation | Rear electrode structures for electrophoretic displays |
US6710540B1 (en) | 1995-07-20 | 2004-03-23 | E Ink Corporation | Electrostatically-addressable electrophoretic display |
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 |
JP2002507765A (en) * | 1998-03-18 | 2002-03-12 | イー−インク コーポレイション | Electrophoretic display and system for addressing the display |
US6704133B2 (en) | 1998-03-18 | 2004-03-09 | E-Ink Corporation | Electro-optic display overlays and systems for addressing such displays |
US7075502B1 (en) | 1998-04-10 | 2006-07-11 | E Ink Corporation | Full color reflective display with multichromatic sub-pixels |
WO1999059101A2 (en) | 1998-05-12 | 1999-11-18 | E-Ink Corporation | Microencapsulated electrophoretic electrostatically-addressed media for drawing device applications |
EP1093600B1 (en) | 1998-07-08 | 2004-09-15 | E Ink Corporation | Methods for achieving improved color in microencapsulated electrophoretic devices |
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 |
DE60139393D1 (en) * | 2000-05-26 | 2009-09-10 | Seiko Epson Corp | DISPLAY AND RECORDED 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688031A (en) * | 1984-03-30 | 1987-08-18 | Wang Laboratories, Inc. | Monochromatic representation of color images |
US4703318A (en) * | 1984-03-30 | 1987-10-27 | Wang Laboratories, Inc. | Character-based monochromatic representation of color images |
US4833464A (en) * | 1987-09-14 | 1989-05-23 | Copytele, Inc. | Electrophoretic information display (EPID) apparatus employing grey scale capability |
-
1991
- 1991-07-15 JP JP4502927A patent/JP2958114B2/en not_active Expired - Fee Related
- 1991-07-15 DE DE69123604T patent/DE69123604T2/en not_active Expired - Fee Related
- 1991-07-15 WO PCT/US1991/004834 patent/WO1993002443A1/en active IP Right Grant
- 1991-07-15 EP EP92902841A patent/EP0595812B1/en not_active Expired - Lifetime
- 1991-07-15 CA CA002113570A patent/CA2113570C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0595812B1 (en) | 1996-12-11 |
EP0595812A1 (en) | 1994-05-11 |
CA2113570C (en) | 1996-05-07 |
JP2958114B2 (en) | 1999-10-06 |
DE69123604D1 (en) | 1997-01-23 |
JPH07500680A (en) | 1995-01-19 |
WO1993002443A1 (en) | 1993-02-04 |
DE69123604T2 (en) | 1997-04-17 |
EP0595812A4 (en) | 1995-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |