WO2008087794A1 - Electrophoretic display medium and electrophoretic display device - Google Patents

Electrophoretic display medium and electrophoretic display device Download PDF

Info

Publication number
WO2008087794A1
WO2008087794A1 PCT/JP2007/072478 JP2007072478W WO2008087794A1 WO 2008087794 A1 WO2008087794 A1 WO 2008087794A1 JP 2007072478 W JP2007072478 W JP 2007072478W WO 2008087794 A1 WO2008087794 A1 WO 2008087794A1
Authority
WO
WIPO (PCT)
Prior art keywords
charged particle
particles
electrophoretic display
particle
white
Prior art date
Application number
PCT/JP2007/072478
Other languages
French (fr)
Japanese (ja)
Inventor
Yumiko Oshika
Original Assignee
Brother Kogyo Kabushiki Kaisha
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 Brother Kogyo Kabushiki Kaisha filed Critical Brother Kogyo Kabushiki Kaisha
Publication of WO2008087794A1 publication Critical patent/WO2008087794A1/en

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
    • 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
    • G02F2001/1678—Constructional details characterised by the composition or particle type

Abstract

Black charged particles (50) and white charged particles (60) different from each other in charge polarity are included in a display part. The black charged particle (50) comprises a first mother particle (51) having a charge polarity different from the white charged particle (60) and first child particles (52), which are fine particles electrified to the same charge polarity as the white charged particle (60), adhered onto the surface of the first mother particle (51). As the black charged particle (50) approaches a position nearer the white charged particle (60), the repulsion generated between the first child particles (52) adhered onto the surface of the black charged particle (50) and the white charged particle (60) increases. Accordingly, in this case, the frequency of the generation of coagulation of the charged particles is reduced, whereby a high image quality can be realized.
PCT/JP2007/072478 2007-01-17 2007-11-20 Electrophoretic display medium and electrophoretic display device WO2008087794A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007008238A JP2008175973A (en) 2007-01-17 2007-01-17 Electrophoretic display medium and electrophoresis display device
JP2007-008238 2007-01-17

Publications (1)

Publication Number Publication Date
WO2008087794A1 true WO2008087794A1 (en) 2008-07-24

Family

ID=39635800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/072478 WO2008087794A1 (en) 2007-01-17 2007-11-20 Electrophoretic display medium and electrophoretic display device

Country Status (2)

Country Link
JP (1) JP2008175973A (en)
WO (1) WO2008087794A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010160251A (en) * 2009-01-07 2010-07-22 Bridgestone Corp Panel for information display and electronic pop and electronic shelf label using same
WO2010149505A3 (en) * 2009-06-24 2011-05-05 Basf Se Charged particles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010190962A (en) * 2009-02-16 2010-09-02 Konica Minolta Business Technologies Inc Display particle for image display device, and image display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004079441A1 (en) * 2003-03-07 2004-09-16 Matsushita Electric Industrial Co., Ltd. Display
WO2004090626A1 (en) * 2003-04-02 2004-10-21 Bridgestone Corporation Particle used for image display medium, image display panel using same, and image display

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004079441A1 (en) * 2003-03-07 2004-09-16 Matsushita Electric Industrial Co., Ltd. Display
WO2004090626A1 (en) * 2003-04-02 2004-10-21 Bridgestone Corporation Particle used for image display medium, image display panel using same, and image display

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010160251A (en) * 2009-01-07 2010-07-22 Bridgestone Corp Panel for information display and electronic pop and electronic shelf label using same
WO2010149505A3 (en) * 2009-06-24 2011-05-05 Basf Se Charged particles
CN102803398A (en) * 2009-06-24 2012-11-28 巴斯夫欧洲公司 Charged particles
CN102803398B (en) * 2009-06-24 2014-12-10 巴斯夫欧洲公司 Charged particles
RU2548071C2 (en) * 2009-06-24 2015-04-10 Басф Се Charged particles
US9403987B2 (en) 2009-06-24 2016-08-02 Basf Se Charged particles

Also Published As

Publication number Publication date
JP2008175973A (en) 2008-07-31

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