WO1998041899A3 - Improved microencapsulated electrophoretic display - Google Patents

Improved microencapsulated electrophoretic display Download PDF

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Publication number
WO1998041899A3
WO1998041899A3 PCT/US1998/004705 US9804705W WO9841899A3 WO 1998041899 A3 WO1998041899 A3 WO 1998041899A3 US 9804705 W US9804705 W US 9804705W WO 9841899 A3 WO9841899 A3 WO 9841899A3
Authority
WO
WIPO (PCT)
Prior art keywords
phases
microcapsules
visual appearance
electrophoretic display
field
Prior art date
Application number
PCT/US1998/004705
Other languages
French (fr)
Other versions
WO1998041899A2 (en
WO1998041899A9 (en
Inventor
Joseph M Jacobson
Barrett Comiskey
Jonathan Albert
Original Assignee
Massachusetts Inst Technology
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 Massachusetts Inst Technology filed Critical Massachusetts Inst Technology
Priority to AU67596/98A priority Critical patent/AU6759698A/en
Priority to EP98912920A priority patent/EP0968457B1/en
Priority to KR19997008446A priority patent/KR100413157B1/en
Priority to JP54059198A priority patent/JP3980654B2/en
Priority to CA002283752A priority patent/CA2283752C/en
Priority to BR9808277-9A priority patent/BR9808277A/en
Priority to DE69837785T priority patent/DE69837785T2/en
Publication of WO1998041899A2 publication Critical patent/WO1998041899A2/en
Publication of WO1998041899A3 publication Critical patent/WO1998041899A3/en
Publication of WO1998041899A9 publication Critical patent/WO1998041899A9/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/16757—Microcapsules

Abstract

An application-ready electrophoresis material includes a carrier and a dispersion of microcapsules therein, the microcapsules each containing a plurality of phases therein. At least some of the phases contrast visually and exhibit differential responsiveness to an electric field, such that application of the field determines the visual appearance of the microcapsules. The material exhibits stability such that the visual appearance persists despite removal of the field. In one aspect, the invention provides for enhanced stability of the visual appearance. In another aspect, the reflectivity of at least one of the phases is enhanced. In another aspect, one of the phases is particulate in nature and emits visible radiation.
PCT/US1998/004705 1997-03-18 1998-03-12 Improved microencapsulated electrophoretic display WO1998041899A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU67596/98A AU6759698A (en) 1997-03-18 1998-03-12 Improved microencapsulated electrophoretic display
EP98912920A EP0968457B1 (en) 1997-03-18 1998-03-12 Improved microencapsulated electrophoretic display
KR19997008446A KR100413157B1 (en) 1997-03-18 1998-03-12 Improved microencapsulated electrophoretic display
JP54059198A JP3980654B2 (en) 1997-03-18 1998-03-12 Improved microencapsulated electromotive display
CA002283752A CA2283752C (en) 1997-03-18 1998-03-12 Improved microencapsulated electrophoretic display
BR9808277-9A BR9808277A (en) 1997-03-18 1998-03-12 Electrophoretic or dielectrophoretic material, elongated electrophoretic device, and printed electronic display
DE69837785T DE69837785T2 (en) 1997-03-18 1998-03-12 IMPROVED ELECTROPHORTIC DISPLAY IN MICROCASE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/819,320 US5961804A (en) 1997-03-18 1997-03-18 Microencapsulated electrophoretic display
US08/819,320 1997-03-18

Publications (3)

Publication Number Publication Date
WO1998041899A2 WO1998041899A2 (en) 1998-09-24
WO1998041899A3 true WO1998041899A3 (en) 1998-10-29
WO1998041899A9 WO1998041899A9 (en) 1998-12-10

Family

ID=25227818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/004705 WO1998041899A2 (en) 1997-03-18 1998-03-12 Improved microencapsulated electrophoretic display

Country Status (10)

Country Link
US (1) US5961804A (en)
EP (1) EP0968457B1 (en)
JP (2) JP3980654B2 (en)
KR (1) KR100413157B1 (en)
AU (1) AU6759698A (en)
BR (1) BR9808277A (en)
CA (1) CA2283752C (en)
DE (1) DE69837785T2 (en)
TW (1) TW459159B (en)
WO (1) WO1998041899A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9170468B2 (en) 2013-05-17 2015-10-27 E Ink California, Llc Color display device

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US5961804A (en) 1999-10-05
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EP0968457B1 (en) 2007-05-16
TW459159B (en) 2001-10-11
CA2283752A1 (en) 1998-09-24
JP2001516467A (en) 2001-09-25
KR100413157B1 (en) 2003-12-31
DE69837785T2 (en) 2008-01-31
WO1998041899A2 (en) 1998-09-24
DE69837785D1 (en) 2007-06-28
BR9808277A (en) 2000-05-16
JP3980654B2 (en) 2007-09-26
CA2283752C (en) 2003-10-21
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AU6759698A (en) 1998-10-12
JP2006343782A (en) 2006-12-21

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