FR2432730A1 - Dispositif electro-optique d'indication du temps - Google Patents

Dispositif electro-optique d'indication du temps

Info

Publication number
FR2432730A1
FR2432730A1 FR7918796A FR7918796A FR2432730A1 FR 2432730 A1 FR2432730 A1 FR 2432730A1 FR 7918796 A FR7918796 A FR 7918796A FR 7918796 A FR7918796 A FR 7918796A FR 2432730 A1 FR2432730 A1 FR 2432730A1
Authority
FR
France
Prior art keywords
electrodes
blocks
track
twin
track segments
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.)
Withdrawn
Application number
FR7918796A
Other languages
English (en)
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.)
Eurosil GmbH
Original Assignee
Eurosil GmbH
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 Eurosil GmbH filed Critical Eurosil GmbH
Publication of FR2432730A1 publication Critical patent/FR2432730A1/fr
Withdrawn legal-status Critical Current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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
    • G04G9/0094—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08 using light valves, e.g. liquid crystals
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Geometry (AREA)
  • Optics & Photonics (AREA)
  • Electric Clocks (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

Dispositif électro-optique d'indication du temps à la façon d'une horloge à aiguilles. Les segments sont groupés de façon à n'utiliser qu'aussi peu d'électrodes de connexion possibles pour être actives. Les électrodes intérieures sont subdivisées en blocs extérieurs et les électrodes extérieures en blocs extérieurs. Les segments sont disposés en groupes doubles avec montage spécial. Chaque groupe double est recouvert par deux blocs intérieurs contigus et deux blocs extérieurs contigus. L'activation des électrodes de connexion a lieu alternativement dans l'ordre croissant et décroissant Après chaque changement, ce sont les connexions du bloc intérieur et/ou extérieur suivant qui sont activées. Applications : à l'horlogerie électronique.
FR7918796A 1978-08-05 1979-07-20 Dispositif electro-optique d'indication du temps Withdrawn FR2432730A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2834387A DE2834387C3 (de) 1978-08-05 1978-08-05 Elektro-optische Zeit-Anzeigeeinrichtung

Publications (1)

Publication Number Publication Date
FR2432730A1 true FR2432730A1 (fr) 1980-02-29

Family

ID=6046313

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7918796A Withdrawn FR2432730A1 (fr) 1978-08-05 1979-07-20 Dispositif electro-optique d'indication du temps

Country Status (6)

Country Link
US (1) US4254489A (fr)
JP (1) JPS5523493A (fr)
CH (1) CH632896B (fr)
DE (1) DE2834387C3 (fr)
FR (1) FR2432730A1 (fr)
GB (1) GB2029610B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726781A (en) * 1980-07-25 1982-02-12 Casio Comput Co Ltd Display device
FR2558978B1 (fr) * 1984-01-26 1987-06-19 Bleris Dispositif d'affichage analogique quantifie a structure plane et appareil de mesure analogique comportant un tel dispositif d'affichage
DE3622632C2 (de) * 1986-07-05 1995-11-30 Fichtel & Sachs Ag Elektronisches Gerät zur Messung und Anzeige der Geschwindigkeit und weiterer Daten bei einem Fahrrad
US5177432A (en) * 1991-05-31 1993-01-05 Ppg Industries, Inc. Wireless velocity detector for a bicycle having a rotating AC magnetic field and receiver coils
US5237545A (en) * 1992-12-29 1993-08-17 Paul M. Schrader Electronic simulated sundial timepiece
USD749433S1 (en) * 2014-05-22 2016-02-16 Sevenfriday AG Timepiece
USD938834S1 (en) * 2020-03-19 2021-12-21 Time Timer, LLC Timer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982239A (en) * 1973-02-07 1976-09-21 North Hills Electronics, Inc. Saturation drive arrangements for optically bistable displays

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276200A (en) * 1964-08-27 1966-10-04 Gen Time Corp Electronic clock
GB1472260A (en) * 1973-10-29 1977-05-04 Murrell N Electro optical display system in a time-piece
DE2551542A1 (de) * 1975-11-17 1977-05-26 Joachim Reich Elektronische uhr
GB1599667A (en) 1977-05-12 1981-10-07 Murrell N J Electrooptical analogue display with reduced connections
DE2803899C2 (de) 1978-01-30 1983-05-26 Hans Uwe Dipl.-Phys. 8021 Taufkirchen Reif Verfahren zur Ansteuerung einer quasianalogen Uhren-Anzeigeeinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982239A (en) * 1973-02-07 1976-09-21 North Hills Electronics, Inc. Saturation drive arrangements for optically bistable displays

Also Published As

Publication number Publication date
GB2029610A (en) 1980-03-19
US4254489A (en) 1981-03-03
CH632896B (de)
CH632896GA3 (fr) 1982-11-15
DE2834387A1 (de) 1980-02-14
DE2834387C3 (de) 1981-04-16
JPS5523493A (en) 1980-02-19
GB2029610B (en) 1982-12-22
DE2834387B2 (de) 1980-08-28

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse