GB1466371A

GB1466371A – Electro-optic display devices
– Google Patents

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
1973-05-21
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.)
1973-05-21
Filing date
1974-04-29
Publication date
1977-03-09

1974-04-29
Application filed by Ebauches SA
filed
Critical
Ebauches SA

1977-03-09
Publication of GB1466371A
publication
Critical
patent/GB1466371A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

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+, Rb+, Cs+, Ca2+, Ag+, Tl+, Sr2+, Pb2+, NR 4 +, PR 4 +, (ferrocene)+, and Ba2+ 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)

CH568574A
(en)

DE
(1)

DE2424744C3
(en)

FR
(1)

FR2231064B1
(en)

GB
(1)

GB1466371A
(en)

IT
(1)

IT1011425B
(en)

NL
(1)

NL7406491A
(en)

1973

1973-05-21
CH
CH718673A
patent/CH568574A/en
not_active
IP Right Cessation

1973-05-21
CH
CH718673D
patent/CH718673A4/xx
unknown

1974

1974-04-29
GB
GB1873274A
patent/GB1466371A/en
not_active
Expired

1974-05-10
IT
IT5091974A
patent/IT1011425B/en
active

1974-05-15
NL
NL7406491A
patent/NL7406491A/xx
not_active
Application Discontinuation

1974-05-16
FR
FR7418487A
patent/FR2231064B1/fr
not_active
Expired

1974-05-17
CA
CA200,317A
patent/CA1018638A/en
not_active
Expired

1974-05-21
DE
DE19742424744
patent/DE2424744C3/en
not_active
Expired

1974-05-21
JP
JP5619874A
patent/JPS588490B2/en
not_active
Expired

Also Published As

Publication number
Publication date

CA1018638A
(en)

1977-10-04

DE2424744C3
(en)

1979-01-04

CH718673A4
(en)

1975-04-30

FR2231064A1
(en)

1974-12-20

JPS588490B2
(en)

1983-02-16

JPS5020698A
(en)

1975-03-05

CH568574A
(en)

1975-10-31

NL7406491A
(en)

1974-11-25

DE2424744B2
(en)

1978-04-27

FR2231064B1
(en)

1978-01-20

DE2424744A1
(en)

1974-11-28

IT1011425B
(en)

1977-01-20

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Legal Events

Date
Code
Title
Description

1977-07-20
PS
Patent sealed

1986-01-08
PCNP
Patent ceased through non-payment of renewal fee

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