EP0000616B1 - Dispositif d'affichage électrochrome permettant un adressage matriciel - Google Patents

Dispositif d'affichage électrochrome permettant un adressage matriciel Download PDF

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Publication number
EP0000616B1
EP0000616B1 EP78300063A EP78300063A EP0000616B1 EP 0000616 B1 EP0000616 B1 EP 0000616B1 EP 78300063 A EP78300063 A EP 78300063A EP 78300063 A EP78300063 A EP 78300063A EP 0000616 B1 EP0000616 B1 EP 0000616B1
Authority
EP
European Patent Office
Prior art keywords
display
electrodes
row
electrochromic
mole
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
EP78300063A
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German (de)
English (en)
Other versions
EP0000616A1 (fr
Inventor
Angel Garcia Arellano
Peter John Melz
Clayton Vance Wilbur
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0000616A1 publication Critical patent/EP0000616A1/fr
Application granted granted Critical
Publication of EP0000616B1 publication Critical patent/EP0000616B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/38—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using electrochromic devices
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
    • C09K9/02—Organic tenebrescent materials
    • 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
    • G02F1/1503—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 caused by oxidation-reduction reactions in organic liquid solutions, e.g. viologen solutions
    • 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

Definitions

  • This invention relates to an electrochromic display device comprising a pair of dielectric plates, at least one of which is transparent, sealed together to enclose an electrochromic redox composition, electrodes disposed on the inner faces of the plates so as to define a matrix of display sites at each of which current may flow from an electrode on one face to an electrode on the other face, and drive means arranged to supply drive voltages selectively to individual electrodes.
  • a plurality of vertically extending or column electrodes 26 are disposed in parallel spaced relationship on the facing interior surface of upper clear glass plate 16 and a plurality of row electrodes 30 are disposed on a facing interior surface 32 of glass plate 18, which may or may not be transparent.
  • the electrodes 26 and 30 extend through the display region and define a matrix of display sites, each site being disposed at a different crosspoint of a column electrode 26 and a row electrode 30. While the number and relative spacing of the column and row electrodes 26, 30 may depend upon a particular application for which the display panel 12 is designed, in the present instance the panel is suitable for the display of four data characters each represented by a display site array of 7 x 9 crosspoints.
  • each row electrode communicates with 28 individual display elements or cells, each of which may produce a current load of 1 milliamp, the maximum current load is 28 milli- amps.
  • a larger 16 character display may produce a current load as high as 112 milli- amps for the row driver 60.
  • each column electrode is necessarily driven alternately with +V threshold for 1/2 row period and -V threshold for another 1/2 row period to provide a time average of 0 volts during the non-select time. Therefore, the discharge rate and hence apparent colouration of the cell is independent of the information being displayed.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (7)

1. Dispositif d'affichage électrochromique comprenant une paire de plaques diélectriques, dont au moins une est transparente, scellées ensemble pour enfermer une composition redox électrochromique, des électrodes placées sur les faces internes des plaques de manière à définir une matrice de positions d'affichage traversées chacune par un courant circulant d'une électrode d'une face à une électrode de l'autre face, et des moyens d'excitation agencés de manière à appliquer sélectivement des tensions d'excitation à chacune des électrodes, caractérisé en ce que les faces internes des plaques diélectriques (16, 18) sont planes et portent chacune un jeu d'électrodes d'affichage (26, 30), les moyens d'excitation (60, 62) étant tels qu'ils puissant appliquer aux électrodes d'affichage un signal de tension tel que la différence de potentiel entre les élextrodes aux positions d'affichage sélectionnées uniquement soit à un niveau dépassant un seuil donné, dépendant de la composition électrochromique, et que lesdits moyens d'excitation (60, 62) aient une impédance fiable et les électrodes (26, 30) aient une résistance fiable telles que les niveaux de tension aux positions d'affichage soient indépendants de l'effet d'affichage, ou non, d'une position d'affichage.
2. Dispositif selon la revendication 1, caractérisé en ce que la composition électrochromique est telle que l'effet d'affichage à une position d'affichage s'affaiblisse en l'absence d'une différence de potentiel dépassant le seuil donné, et en ce que les moyens d'excitation sont agencés de manière qu'ils fournissent des signaux impulsionnels cycliques aux électrodes d'affichage sélectionnées de sorte que l'effet d'affichage soit régulièrement régénéré.
3. Dispositif selon la revendication 2, caractérisé en ce que les moyens d'excitation sont agencés de manière à fournir des signaux de tension aux électrodes tels que la moyenne temporelle de la différence de potentiel aux positions d'affichage non sélectionnées, soit nulle.
4. Dispositif selon la revendication 2 ou la revendication 3, caractérisé en ce que la composition électrochromique comprend de la pyrazoline.
5. Dispositif selon la revendication 2 ou la revendication 3, caractérisé en ce que la composition électrochromique comprend un solvant, la méthyl-éthyl-cétone, contenant:
0,09 mole de 1 - p - méthoxyphényl - 3 - p - diéthylamino styryl - 5 - diéthylamino phényl - Δ2 - pyrazoline,
0,02 moles de phényl - p - benzoquinine, et
0,4 moles de fluoroborate de tétrabutyl ammonium.
6. Dispositif selon la revendication 2 ou la revendication 3, caractérisé en ce que la composition électrochromique comprend un solvant, la méthyl-éthyl-cétone, contenant:
0,2 mole de 1 - p - méthoxyphényl - 3 - p - dipropylamino styryl - 5 - dipropylamino phényl - Δ2 - pyrazoline,
0,4 mole de phényl - p - benzoquinine, et 0,8 mole de fluoroborate de tétrabutyl ammonium.
7. Dispositif selon l'une quelconque des revendications précédentes, dans lequel les faces internes des plaques diélectriques sont séparées d'une distance de l'ordre de 0,0127 mm à 0,127 mm.
EP78300063A 1977-06-29 1978-06-21 Dispositif d'affichage électrochrome permettant un adressage matriciel Expired EP0000616B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/811,328 US4146876A (en) 1977-06-29 1977-06-29 Matrix addressed electrochromic display
US811328 1977-06-29

Publications (2)

Publication Number Publication Date
EP0000616A1 EP0000616A1 (fr) 1979-02-07
EP0000616B1 true EP0000616B1 (fr) 1981-11-25

Family

ID=25206247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300063A Expired EP0000616B1 (fr) 1977-06-29 1978-06-21 Dispositif d'affichage électrochrome permettant un adressage matriciel

Country Status (7)

Country Link
US (1) US4146876A (fr)
EP (1) EP0000616B1 (fr)
JP (1) JPS5431297A (fr)
BR (1) BR7804156A (fr)
CA (1) CA1085525A (fr)
DE (1) DE2861344D1 (fr)
IT (1) IT1108959B (fr)

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Publication number Priority date Publication date Assignee Title
US4225861A (en) * 1978-12-18 1980-09-30 International Business Machines Corporation Method and means for texture display in raster scanned color graphic
FR2499744B1 (fr) * 1981-01-05 1986-07-04 Commissariat Energie Atomique Dispositif d'affichage matriciel comprenant deux familles d'electrodes lignes et son procede de commande
US4456337A (en) * 1981-12-07 1984-06-26 Rockwell International Corporation Chemically coupled color-changing display
EP0084604A1 (fr) * 1982-01-25 1983-08-03 American Cyanamid Company Commande par transistor à couche mince pour un dispositif d'affichage électrochromique
EP0084603A1 (fr) * 1982-01-25 1983-08-03 American Cyanamid Company Procédé et installation de commande multiplex d'un dispositif d'affichage électrochromique
JPS58137879A (ja) * 1982-02-10 1983-08-16 株式会社デンソー エレクトロクロミツク表示器
US4653859A (en) * 1983-03-04 1987-03-31 Canon Kabushiki Kaisha Liquid crystal optical modulating element having particular capacitance between lines and method for driving the same
NL8502663A (nl) * 1985-09-30 1987-04-16 Philips Nv Weergeefinrichting met verbeterde aansturing.
US4902108A (en) * 1986-03-31 1990-02-20 Gentex Corporation Single-compartment, self-erasing, solution-phase electrochromic devices, solutions for use therein, and uses thereof
NL8601373A (nl) * 1986-05-29 1987-12-16 Philips Nv Weergeefinrichting met verbeterde aansturing.
JPS6433536A (en) * 1987-07-29 1989-02-03 Sony Corp Electrochromic display device
US5179467A (en) * 1989-12-05 1993-01-12 International Business Machines Corporation Charge transfer salts and uses thereof
US5311350A (en) * 1991-01-16 1994-05-10 Hamamatsu Photonics K.K. Optical device and apparatus using the optical device
GB9722766D0 (en) 1997-10-28 1997-12-24 British Telecomm Portable computers
EP1412811A2 (fr) 2001-03-19 2004-04-28 Aveso, Inc. Dispositif d'affichage electrochromique et compositions utilisees pour fabriquer de tels dispositifs
CN100419906C (zh) * 2001-08-13 2008-09-17 先进微装置公司 存储器单元
US6806526B2 (en) * 2001-08-13 2004-10-19 Advanced Micro Devices, Inc. Memory device
US6744549B2 (en) * 2002-03-19 2004-06-01 Dow Global Technologies Inc. Electrochromic display device
WO2006051056A1 (fr) * 2004-11-12 2006-05-18 Siemens Aktiengesellschaft Dispositif d'affichage electrochromatique a matrice passive
JP5200344B2 (ja) * 2006-08-02 2013-06-05 富士ゼロックス株式会社 画像表示媒体、画像書込み装置、および画像形成装置
US20120013981A1 (en) * 2010-07-19 2012-01-19 Sol-Grid, Llc Photochromic optical elements
KR20160022030A (ko) * 2014-08-19 2016-02-29 현대자동차주식회사 투명도 가변 글래스 및 글래스 투명도 제어 장치
CN104834103B (zh) * 2015-05-25 2017-04-12 京东方科技集团股份有限公司 3d光栅、彩膜基板、显示装置及其控制方法

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US3451741A (en) * 1966-06-15 1969-06-24 Du Pont Electrochromic device
GB1339402A (en) * 1971-02-18 1973-12-05 Suwa Seikosha Kk Timepiece
US3736043A (en) * 1971-03-29 1973-05-29 Ibm Electrochemical molecular display and writing
JPS5236656B2 (fr) * 1973-01-10 1977-09-17
JPS5092046A (fr) * 1973-12-13 1975-07-23
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JPS5218197A (en) * 1975-08-01 1977-02-10 Citizen Watch Co Ltd Drive circuit for electrochromism display
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JPS5911911B2 (ja) * 1975-12-01 1984-03-19 シチズン時計株式会社 デンシコウガクテキヒヨウジタイノクドウホウホウ

Also Published As

Publication number Publication date
EP0000616A1 (fr) 1979-02-07
BR7804156A (pt) 1979-04-10
JPS5431297A (en) 1979-03-08
US4146876A (en) 1979-03-27
IT7825056A0 (it) 1978-06-28
CA1085525A (fr) 1980-09-09
DE2861344D1 (en) 1982-01-28
IT1108959B (it) 1985-12-16

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