CH614585GA3 - - Google Patents

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Publication number
CH614585GA3
CH614585GA3 CH634877A CH634877A CH614585GA3 CH 614585G A3 CH614585G A3 CH 614585GA3 CH 634877 A CH634877 A CH 634877A CH 634877 A CH634877 A CH 634877A CH 614585G A3 CH614585G A3 CH 614585GA3
Authority
CH
Switzerland
Prior art keywords
solvent
frequency
display device
compound
mol
Prior art date
Application number
CH634877A
Other versions
CH614585B (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 CH614585B publication Critical patent/CH614585B/en
Application filed filed Critical
Publication of CH614585GA3 publication Critical patent/CH614585GA3/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)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The display in a diffusion type electrochromic display device is turned off with high response by applying an A.C. input voltage having a frequency of one to ten times as high as the cut-off frequency. The diffusion type electrochromic display device is an EC display device which uses an EC composition consisting of an EC compound coloring in a reduced state and a solvent in which the solubility of the compound to the solvent is 10-2 mol/(100 g solvent) or more in a reduced state and 10-1 mol/(100 g solvent) or more in an oxidized state. The cut-off frequency is a critical frequency at a freqency higher than which the oxidization or reduction of the EC compound cannot follow the change in the input voltage, which is normally 20 to 50 Hz.
CH634877A 1976-05-25 1977-05-23 PROCEDURE FOR TURNING OFF THE DISPLAY OF AN ELECTROCHROMIC DISPLAY DEVICE. CH614585B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6028076A JPS5316645A (en) 1976-05-25 1976-05-25 Method of driving electrochromic display element

Publications (2)

Publication Number Publication Date
CH614585B CH614585B (en)
CH614585GA3 true CH614585GA3 (en) 1979-12-14

Family

ID=13137566

Family Applications (1)

Application Number Title Priority Date Filing Date
CH634877A CH614585B (en) 1976-05-25 1977-05-23 PROCEDURE FOR TURNING OFF THE DISPLAY OF AN ELECTROCHROMIC DISPLAY DEVICE.

Country Status (5)

Country Link
US (1) US4166676A (en)
JP (1) JPS5316645A (en)
CH (1) CH614585B (en)
DE (1) DE2722920C3 (en)
GB (1) GB1577788A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827688A1 (en) * 1977-06-28 1979-01-04 Dainippon Toryo Kk ELECTROCHROME DIMENSIONS AND THE ELECTROCHROME DISPLAY DEVICE
US4408202A (en) * 1979-11-13 1983-10-04 Fales John D Electrokinetic display system
JPH01225994A (en) * 1988-03-07 1989-09-08 Hitachi Maxell Ltd Method for driving electro-chromic display element
DE19825371A1 (en) * 1998-06-06 1999-12-09 Bayer Ag Electrochromic display device with insulated leads
JP6036025B2 (en) * 2011-12-06 2016-11-30 株式会社リコー Electrochromic display device driving method and electrochromic display device
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2722920B2 (en) 1979-02-01
US4166676A (en) 1979-09-04
DE2722920A1 (en) 1977-12-01
JPS5316645A (en) 1978-02-15
DE2722920C3 (en) 1979-09-20
CH614585B (en)
JPS6123534B2 (en) 1986-06-06
GB1577788A (en) 1980-10-29

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