GB1313775A - Electrophoretic image reproduction device - Google Patents

Electrophoretic image reproduction device

Info

Publication number
GB1313775A
GB1313775A GB1961370A GB1961370A GB1313775A GB 1313775 A GB1313775 A GB 1313775A GB 1961370 A GB1961370 A GB 1961370A GB 1961370 A GB1961370 A GB 1961370A GB 1313775 A GB1313775 A GB 1313775A
Authority
GB
United Kingdom
Prior art keywords
layer
suspension
medium
electro
photo
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.)
Expired
Application number
GB1961370A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP44031602A external-priority patent/JPS5015117B1/ja
Priority claimed from JP44031599A external-priority patent/JPS5015116B1/ja
Priority claimed from JP44046699A external-priority patent/JPS5015119B1/ja
Priority claimed from JP44046700A external-priority patent/JPS5015120B1/ja
Priority claimed from JP44046698A external-priority patent/JPS4933557B1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1313775A publication Critical patent/GB1313775A/en
Expired legal-status Critical Current

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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
    • G03G17/04—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process using photoelectrophoresis

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

1313775 Electro-photographic apparatus MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 April 1970 [23 April 1969(2) 12 June 1969(3)] 19613/70 Heading G2H [Also in Divisions H1] An optical image display device comprises a suspension layer including a finely divided electrophoretic substance, suspended in a medium from which it differs in colour, a photo-conductive layer in contact with said suspension layer and electrodes for establishing a potential gradient through the layers. The medium may be a liquid, a liquifiable material, a hardenable liquid or a thermosetting material. A solidifiable medium is used for permanent images. The device may be sensitive to visible, U.V., or I. R. radiation or X or γ -rays whilst one or both of the electrodes may be transparent. In an embodiment, tinoxide-coated glass 8, 4 has a layer 50 of brominated polyvinylcarbazole thereon and is separated from a sheet of tin-oxide coated glass 9, 5 by separator 38 with the intervening space filled with an electro-phoretic suspension of TiO 2 and black particles 6 in olive oil 7. In another embodiment Fig.2, (not shown) a coloured porous layer (12) divides the electro-phoretic suspension in two. One or both of the electrodes may be replaced by a corona discharge Figs.5 and 7 (not shown) or a roller electrode Figs.6 and 8 (not shown) and in this case the suspension medium is covered with a transparent plastics layer (31) or the photo-conductive layer. In the case of a softenable suspension medium, the medium may be contacted directly by the electrode and lie on top of a photo-conductive layer and a transparent plastics layer, (32) Fig.8 (not shown). Two types of electro-phoretic particles may be used in the suspension medium, they may differ in polarity, mobility or colour. Many materials suitable for use as the particles, the photo-conductive layer, the electrode and the transparent plastics layer are exemplified.
GB1961370A 1969-04-23 1970-04-23 Electrophoretic image reproduction device Expired GB1313775A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP44031602A JPS5015117B1 (en) 1969-04-23 1969-04-23
JP44031599A JPS5015116B1 (en) 1969-04-23 1969-04-23
JP44046699A JPS5015119B1 (en) 1969-06-12 1969-06-12
JP44046700A JPS5015120B1 (en) 1969-06-12 1969-06-12
JP44046698A JPS4933557B1 (en) 1969-06-12 1969-06-12

Publications (1)

Publication Number Publication Date
GB1313775A true GB1313775A (en) 1973-04-18

Family

ID=27521347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1961370A Expired GB1313775A (en) 1969-04-23 1970-04-23 Electrophoretic image reproduction device

Country Status (5)

Country Link
CA (1) CA922143A (en)
DE (1) DE2020733C3 (en)
FR (1) FR2046349A5 (en)
GB (1) GB1313775A (en)
NL (1) NL7005937A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100426A (en) * 1960-04-26 1963-08-13 Edward K Kaprelian Electrophotographic printers
US3346475A (en) * 1963-02-25 1967-10-10 Australia Res Lab Electrophotographic method using an unsymmetrical ac current during development

Also Published As

Publication number Publication date
DE2020733C3 (en) 1982-09-23
DE2020733B2 (en) 1980-11-27
CA922143A (en) 1973-03-06
DE2020733A1 (en) 1970-12-10
FR2046349A5 (en) 1971-03-05
NL7005937A (en) 1970-10-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years