GB1466371A - Electro-optic display devices - Google Patents

Electro-optic display devices

Info

Publication number
GB1466371A
GB1466371A GB1873274A GB1873274A GB1466371A GB 1466371 A GB1466371 A GB 1466371A GB 1873274 A GB1873274 A GB 1873274A GB 1873274 A GB1873274 A GB 1873274A GB 1466371 A GB1466371 A GB 1466371A
Authority
GB
United Kingdom
Prior art keywords
layer
electrolyte
electrochromic material
electro
display devices
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
GB1873274A
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB1466371A publication Critical patent/GB1466371A/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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
    • G02F1/1523—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
    • G02F1/1525—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material characterised by a particular ion transporting layer, e.g. electrolyte
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional

Landscapes

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

Abstract

1466371 Modulating light E BAUCHES SA 29 April 1974 [21 May 1973] 18732/74 Heading G2F In a display device of the type comprising a shaped layer of solid electrochromic material, changes colour in response to an electric current, on a transparent electrode and a liquid electrolyte disposed between the shaped layer and a counterelectrode, the electrolyte is doped with a salt of a cation selected to render insoluble the products derived from the electrochromic material during operation of the device, and so preserve the shaping of the layer. For example, with a layer of WO 3 , it is believed that isopolytungstic acids are produced in the presence of an acid electrolyte. Large ions such as K<SP>+</SP>, Rb<SP>+</SP>, Cs<SP>+</SP>, Ca<SP>2+</SP>, Ag<SP>+</SP>, Tl<SP>+</SP>, Sr<SP>2+</SP>, Pb<SP>2+</SP>, NR 4 <SP>+</SP>, PR 4 <SP>+</SP>, (ferrocene)<SP>+</SP>, and Ba<SP>2+</SP> form insoluble salts therewith. BaSO 4 present at, or in excess of, saturation levels, is prefered. Reference has been directed by the Comptroller to Specification 1186541.
GB1873274A 1973-05-21 1974-04-29 Electro-optic display devices Expired GB1466371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH718673A CH568574A (en) 1973-05-21 1973-05-21 ELECTRO-OPTICAL DISPLAY DEVICE.

Publications (1)

Publication Number Publication Date
GB1466371A true GB1466371A (en) 1977-03-09

Family

ID=4321241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1873274A Expired GB1466371A (en) 1973-05-21 1974-04-29 Electro-optic display devices

Country Status (8)

Country Link
JP (1) JPS588490B2 (en)
CA (1) CA1018638A (en)
CH (2) CH718673A4 (en)
DE (1) DE2424744C3 (en)
FR (1) FR2231064B1 (en)
GB (1) GB1466371A (en)
IT (1) IT1011425B (en)
NL (1) NL7406491A (en)

Also Published As

Publication number Publication date
CA1018638A (en) 1977-10-04
FR2231064A1 (en) 1974-12-20
CH718673A4 (en) 1975-04-30
DE2424744B2 (en) 1978-04-27
DE2424744A1 (en) 1974-11-28
NL7406491A (en) 1974-11-25
JPS588490B2 (en) 1983-02-16
JPS5020698A (en) 1975-03-05
CH568574A (en) 1975-10-31
DE2424744C3 (en) 1979-01-04
FR2231064B1 (en) 1978-01-20
IT1011425B (en) 1977-01-20

Similar Documents

Publication Publication Date Title
CA1023430A (en) Wet sealed electrodes for liquid electrolyte fuel cells
CA944051A (en) Compounded liquid crystal cells
US4693564A (en) Electrochromic display device
CA976505A (en) Electrodes for electrochemical processes
GB1381394A (en) Electrochemical display apparatus
US4073570A (en) Electrochromic display device
IE39023L (en) Display devices
AU461771B2 (en) Electrodes for electrochemical processes
GB1466371A (en) Electro-optic display devices
US4326777A (en) Electrochromic display device
GB1356120A (en) Electrochromism and devices therefor
CA997847A (en) Electrical connections for liquid crystal cells
AU465682B2 (en) Electrodes for electrochemical processes
JPS54160572A (en) Electric coloring element
JPS5252389A (en) Liquid crystal matrix panel
AU457936B2 (en) Electrodes for electrochemical processes
CA984605A (en) Process for preparation of an electrode structure containing wo3 use of the structure in an electrochromic cell
AU7895375A (en) Electrode for measuring or controlling liquid depth
AU471249B2 (en) Electrodes for electrochemical processes
GB1529855A (en) Electrochromism and devices therefor
JPS5432299A (en) Electrochromic display cell
CA808332A (en) Electrode assembly for liquid level controllers
JPS51130244A (en) A display material
CA808790A (en) Salt bridge reference electrode
CA822225A (en) Electrodes for electrode boilers

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee