FR2450479A1 - Montre electronique a affichage analogique par cristaux liquides - Google Patents

Montre electronique a affichage analogique par cristaux liquides

Info

Publication number
FR2450479A1
FR2450479A1 FR8004076A FR8004076A FR2450479A1 FR 2450479 A1 FR2450479 A1 FR 2450479A1 FR 8004076 A FR8004076 A FR 8004076A FR 8004076 A FR8004076 A FR 8004076A FR 2450479 A1 FR2450479 A1 FR 2450479A1
Authority
FR
France
Prior art keywords
liquid crystal
electrodes
hands
segment electrodes
electronic watch
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.)
Granted
Application number
FR8004076A
Other languages
English (en)
Other versions
FR2450479B1 (fr
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Publication of FR2450479A1 publication Critical patent/FR2450479A1/fr
Application granted granted Critical
Publication of FR2450479B1 publication Critical patent/FR2450479B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G04G9/062—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 using multiplexing techniques

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Indicating Measured Values (AREA)
  • Quinoline Compounds (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Liquid Crystal (AREA)

Abstract

L'INVENTION CONCERNE L'HORLOGERIE. UNE MONTRE ELECTRONIQUE COMPORTE UN DISPOSITIF D'AFFICHAGE OPTIQUE PAR AIGUILLES QUI COMPREND UN CERTAIN NOMBRE D'ELECTRODES DE SEGMENT 34A EN FORME D'AIGUILLES QUI SONT DISPOSEES RADIALEMENT ET SONT PLACEES FACE A DES ELECTRODES COMMUNES DIVISEES EN GROUPES, AVEC INTERPOSITION D'UNE CELLULE A CRISTAUX LIQUIDES. LES ELECTRODES DE SEGMENT QUI SE TROUVENT DANS DES POSITIONS PREDETERMINEES SONT CONNECTEES ENSEMBLE ET CETTE STRUCTURE PERMET DE REDUIRE LE NOMBRE DE BORNES DE CONNEXION EXTERNES AINSI QUE LE NOMBRE DE TENSIONS DE SELECTION. APPLICATION AUX MONTRES ELECTRONIQUES A AFFICHAGE ANALOGIQUE.
FR8004076A 1979-02-27 1980-02-25 Montre electronique a affichage analogique par cristaux liquides Granted FR2450479A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2233479A JPS55114986A (en) 1979-02-27 1979-02-27 Needle display unit

Publications (2)

Publication Number Publication Date
FR2450479A1 true FR2450479A1 (fr) 1980-09-26
FR2450479B1 FR2450479B1 (fr) 1985-05-17

Family

ID=12079803

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8004076A Granted FR2450479A1 (fr) 1979-02-27 1980-02-25 Montre electronique a affichage analogique par cristaux liquides

Country Status (8)

Country Link
US (1) US4382697A (fr)
JP (1) JPS55114986A (fr)
CH (1) CH645239GA3 (fr)
DE (1) DE3007197A1 (fr)
FR (1) FR2450479A1 (fr)
GB (1) GB2044963B (fr)
HK (1) HK56185A (fr)
SG (1) SG33685G (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163487A (en) * 1979-06-07 1980-12-19 Seikosha Co Ltd Displaying device
JPS55164395A (en) * 1979-06-11 1980-12-22 Seikosha Co Ltd Timer
GB2213965A (en) * 1987-12-23 1989-08-23 Goro Saito Analog display on an electronic timepiece

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390793A2 (fr) * 1977-05-12 1978-12-08 Murrell Nicholas Dispositif de visualisation analogique

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3540209A (en) * 1968-07-31 1970-11-17 Timex Corp Horological time display
US3754392A (en) * 1971-05-17 1973-08-28 Motorola Inc Apparatus for driving a light emitting diode of horologic display
DE2410527C3 (de) * 1973-03-08 1983-11-03 Casio Computer Co., Ltd., Tokyo Elektronisches Zeitanzeigegerät
JPS5426139B2 (fr) * 1973-05-23 1979-09-01
JPS5753558B2 (fr) * 1973-12-19 1982-11-13
US3932860A (en) * 1974-04-25 1976-01-13 Timex Corporation Electro-optical display with circuitry for applying predetermined potentials to all display segments to effect activation of a selected segment only
NL7405724A (nl) * 1974-04-29 1975-10-31 Philips Nv Weergeefinrichting voor een telwerk zoals een klok of horloge.
DE2534694C2 (de) * 1974-08-14 1984-02-02 Kabushiki Kaisha Daini Seikosha, Tokyo Steuerschaltung für eine Flüssigkristall-Anzeigeeinrichtung
US3934241A (en) * 1974-11-13 1976-01-20 Ragen Precision Industries, Inc. Analog display utilizing liquid crystal material and for being multiplexed wherein one group of electrodes are arranged opposite a group of counter-electrodes
DE2621538C3 (de) * 1975-05-28 1985-06-20 Fujitsu Ltd., Kawasaki, Kanagawa Gasentladungsanzeigevorrichtung
DE2551542A1 (de) * 1975-11-17 1977-05-26 Joachim Reich Elektronische uhr
JPS52122097A (en) * 1976-04-06 1977-10-13 Citizen Watch Co Ltd Electric optical display unit
DE2732822A1 (de) * 1977-07-20 1979-02-08 Siemens Ag Vorrichtung zur analogen anzeige einer messgroesse
US4212159A (en) * 1978-02-13 1980-07-15 Texas Instruments Incorporated Electronic timepiece

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390793A2 (fr) * 1977-05-12 1978-12-08 Murrell Nicholas Dispositif de visualisation analogique

Also Published As

Publication number Publication date
HK56185A (en) 1985-08-09
US4382697A (en) 1983-05-10
FR2450479B1 (fr) 1985-05-17
GB2044963A (en) 1980-10-22
DE3007197A1 (de) 1980-09-04
JPS55114986A (en) 1980-09-04
GB2044963B (en) 1983-11-09
SG33685G (en) 1986-05-02
CH645239GA3 (fr) 1984-09-28
JPH0115837B2 (fr) 1989-03-20

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Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse