CH621451GA3 - - Google Patents

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Publication number
CH621451GA3
CH621451GA3 CH917677A CH917677A CH621451GA3 CH 621451G A3 CH621451G A3 CH 621451GA3 CH 917677 A CH917677 A CH 917677A CH 917677 A CH917677 A CH 917677A CH 621451G A3 CH621451G A3 CH 621451GA3
Authority
CH
Switzerland
Prior art keywords
display pattern
electrochromic
display
electrode
pattern electrode
Prior art date
Application number
CH917677A
Other versions
CH621451B (en
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
Publication of CH621451B publication Critical patent/CH621451B/en
Application filed filed Critical
Publication of CH621451GA3 publication Critical patent/CH621451GA3/xx

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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
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

A drive system is provided for an electrochromic display which includes an electrochromic material, a display pattern electrode and a counter electrode. The electrochromic phenomenon, or, reversible variations in the light absorption properties are developed when a predetermined voltage is applied between the display pattern electrode and the counter electrode. An erase pulse is applied to a bleached state display pattern electrode when a certain display pattern is held for a period longer than a memory period of the electrochromic display in order to regenerate the memory state and enhance the visibility.
CH917677A 1976-07-26 1977-07-25 DRIVER CIRCUIT FOR REGENERATING DISPLAY CONDITIONS WITH ELECTROCHROMIC DISPLAY ELEMENTS. CH621451B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8934276A JPS5314598A (en) 1976-07-26 1976-07-26 Memory regeneration method of electrochromic display device

Publications (2)

Publication Number Publication Date
CH621451B CH621451B (en)
CH621451GA3 true CH621451GA3 (en) 1981-02-13

Family

ID=13968013

Family Applications (1)

Application Number Title Priority Date Filing Date
CH917677A CH621451B (en) 1976-07-26 1977-07-25 DRIVER CIRCUIT FOR REGENERATING DISPLAY CONDITIONS WITH ELECTROCHROMIC DISPLAY ELEMENTS.

Country Status (4)

Country Link
US (1) US4150362A (en)
JP (1) JPS5314598A (en)
CH (1) CH621451B (en)
DE (1) DE2733529C2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53130996A (en) * 1977-04-20 1978-11-15 Sharp Corp Driving system for display unit
JPS5432096A (en) * 1977-08-16 1979-03-09 Seiko Instr & Electronics Ltd Driving method for desplay substance
FR2432194A1 (en) * 1978-06-19 1980-02-22 Commissariat Energie Atomique METHOD FOR CONTROLLING AN ELECTROLYTIC DISPLAY CELL AND DEVICE FOR IMPLEMENTING IT
FR2432195A1 (en) * 1978-06-19 1980-02-22 Commissariat Energie Atomique METHOD FOR CONTROLLING AN ELECTROLYTIC CELL USING AN ELECTRICAL QUANTITY SERVED BY A REFERENCE ELECTRODE AND IMPLEMENTING DEVICE
FR2434449A1 (en) * 1978-06-19 1980-03-21 Commissariat Energie Atomique METHOD FOR CONTROLLING AN ELECTROLYTIC DISPLAY CELL USING A LEAKAGE CURRENT FOR ERASING AND CIRCUIT IMPLEMENTING THIS METHOD
JPS561992A (en) * 1979-06-19 1981-01-10 Seiko Instr & Electronics Electrochromic display device
JPS5677891A (en) * 1979-11-29 1981-06-26 Tokyo Shibaura Electric Co Displayyunit drive circuit
JPS5870281A (en) * 1981-10-23 1983-04-26 株式会社ニコン Color return prevention device for electrochromic display elements
US4811008A (en) * 1986-10-30 1989-03-07 Woolfolk Robert L Color pigment graphics information display
US5220317A (en) * 1990-12-11 1993-06-15 Donnelly Corporation Electrochromic device capable of prolonged coloration
US5883304A (en) * 1996-08-09 1999-03-16 Bridgestone Corporation Apparatus for measuring and correcting uniformity of tires
JP6504753B2 (en) * 2013-06-07 2019-04-24 キヤノン株式会社 Electrochromic device, method of driving the same, optical filter, imaging device, lens unit and window material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839857A (en) * 1971-06-03 1974-10-08 American Cyanamid Co Electrochromic information displays
US3950936A (en) * 1972-03-08 1976-04-20 Centre Electronique Horloger S.A. Device for providing an electro-optical display of time
DE2457817A1 (en) * 1974-12-06 1976-06-16 American Cyanamid Co Electro optical unit with changeable absorption characteristics - has a persistent electro chrome material as light modulating medium and ion conductor
US4034550A (en) * 1975-04-08 1977-07-12 Kabushiki Kaisha Suwa Seikosha Electronic wristwatch digital display
JPS51140642A (en) * 1975-05-29 1976-12-03 Seiko Epson Corp Driving circuit
US3987433A (en) * 1975-09-02 1976-10-19 Timex Corporation Electrochromic display driver having interleaved write and erase operations

Also Published As

Publication number Publication date
CH621451B (en)
US4150362A (en) 1979-04-17
DE2733529C2 (en) 1982-06-03
DE2733529A1 (en) 1978-02-02
JPS5314598A (en) 1978-02-09

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