FR2412900A1 - PROCEDURE AND INSTALLATION FOR CONTROL OF A LIQUID CRYSTAL DISPLAY DEVICE - Google Patents

PROCEDURE AND INSTALLATION FOR CONTROL OF A LIQUID CRYSTAL DISPLAY DEVICE

Info

Publication number
FR2412900A1
FR2412900A1 FR7836040A FR7836040A FR2412900A1 FR 2412900 A1 FR2412900 A1 FR 2412900A1 FR 7836040 A FR7836040 A FR 7836040A FR 7836040 A FR7836040 A FR 7836040A FR 2412900 A1 FR2412900 A1 FR 2412900A1
Authority
FR
France
Prior art keywords
group
multiplicity
procedure
liquid crystal
display device
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Withdrawn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
FR7836040A
Other languages
French (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.)
KOHLER HANS MICHAEL
Original Assignee
KOHLER HANS MICHAEL
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
Priority claimed from DE19772757502 external-priority patent/DE2757502A1/en
Priority claimed from DE19782803899 external-priority patent/DE2803899C2/en
Application filed by KOHLER HANS MICHAEL filed Critical KOHLER HANS MICHAEL
Publication of FR2412900A1 publication Critical patent/FR2412900A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • 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
    • G04G9/02—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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G04G9/122—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Geometry (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electric Clocks (AREA)

Abstract

PROCEDE POUR COMMANDER STATIQUEMENT UN DISPOSITIF D'AFFICHAGE A CRISTAUX LIQUIDES, AVEC UNE MULTIPLICITE D'ELEMENTS D'AFFICHAGE SEPARES REPARTIS EN PLUSIEURS GROUPES D'EGALE GRANDEUR, PLACES SUR UNE MULTIPLICITE D'ELECTRODES DE GROUPE RESPECTIVEMENT COMMUNES A TOUS LES ELEMENTS D'UN GROUPE, ET SUR UNE MULTIPLICITE DE BORNES D'ELEMENT RESPECTIVEMENT RELIEES A UNE ELECTRODE INDIVIDUELLE D'UN ELEMENT DE CHAQUE GROUPE, PROCEDE DANS LEQUEL, POUR PRODUIRE UN AFFICHAGE DETERMINE, ON APPLIQUE A DES ELECTRODES DE GROUPE SELECTIONNEES ET A DES BORNES D'ELEMENT SELECTIONNEES DES TENSIONS DIFFERENTES QUI DEVIENNENT RESPECTIVEMENT ACTIVE PAR PAIRES PAR LEURS DIFFERENCES SUR L'ELEMENT INDIVIDUEL ET QUI COMPORTENT UNE TENSION NULLE, UNE TENSION DE BASE POSITIVE AVEC UNE VALEUR EFFECTIVE SITUEE JUSTE EN DESSOUS DE LA VALEUR DE SEUIL DES ELEMENTS D'AFFICHAGE, ET UNE TENSION DE BASE NEGATIVE DE MEME GRANDEUR. CHACUNE DE DEUX ELECTRODES DE GROUPE DISTINCTES EST COMMANDEE PAR UNE DES DEUX TENSIONS DE BASE. APPLICATIONS AUX MONTRES ELECTRONIQUES.PROCESS FOR STATICALLY CONTROL OF A LIQUID CRYSTAL DISPLAY DEVICE, WITH A MULTIPLICITY OF SEPARATE DISPLAY ELEMENTS DISTRIBUTED IN SEVERAL GROUPS OF EQUAL SIZE, PLACED ON A MULTIPLICITY OF GROUP ELECTRODES RESPECTIVELY COMMON TO ALL THE ELEMENTS GROUP, AND ON A MULTIPLICITY OF ELEMENT TERMINALS RESPECTIVELY LINKED TO AN INDIVIDUAL ELECTRODE OF AN ELEMENT OF EACH GROUP, A PROCEDURE IN WHICH, TO PRODUCE A DETERMINED DISPLAY, IS APPLIED TO SELECTED GROUP ELECTRODES AND TO ELEMENT TERMINALS SELECTED DIFFERENT VOLTAGES WHICH BECOME RESPECTIVELY ACTIVE IN PAIRS BY THEIR DIFFERENCES ON THE INDIVIDUAL ELEMENT AND WHICH INCLUDE A ZERO VOLTAGE, A POSITIVE BASE VOLTAGE WITH AN ACTUAL VALUE LOCATED JUST BELOW AND LESS THAN THE VALUE OF THE EACH A NEGATIVE BASE VOLTAGE OF THE SAME SIZE. EACH OF TWO DISTINCT GROUP ELECTRODES IS CONTROLLED BY ONE OF THE TWO BASIC VOLTAGES. APPLICATIONS TO ELECTRONIC WATCHES.

FR7836040A 1977-12-22 1978-12-21 PROCEDURE AND INSTALLATION FOR CONTROL OF A LIQUID CRYSTAL DISPLAY DEVICE Withdrawn FR2412900A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772757502 DE2757502A1 (en) 1977-12-22 1977-12-22 Liq. crystal display control system - uses two base voltages applied to electrodes of separated groups
DE19782803899 DE2803899C2 (en) 1978-01-30 1978-01-30 Method for controlling a quasi-analog clock display device

Publications (1)

Publication Number Publication Date
FR2412900A1 true FR2412900A1 (en) 1979-07-20

Family

ID=25773356

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836040A Withdrawn FR2412900A1 (en) 1977-12-22 1978-12-21 PROCEDURE AND INSTALLATION FOR CONTROL OF A LIQUID CRYSTAL DISPLAY DEVICE

Country Status (7)

Country Link
JP (1) JPS5491197A (en)
BR (1) BR7808403A (en)
FR (1) FR2412900A1 (en)
GB (1) GB2011143B (en)
IT (1) IT1109233B (en)
NL (1) NL7812331A (en)
SE (1) SE7812956L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476342A1 (en) * 1980-02-18 1981-08-21 Ebauches Electroniques Sa ELECTRO-OPTICAL TIME DISPLAY DEVICE IN ANALOGUE FORM

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153279A (en) * 1981-04-01 1981-11-27 Seikosha Co Ltd Whole electronic analog display timepiece
JPS56153280A (en) * 1981-04-01 1981-11-27 Seikosha Co Ltd Whole electronic analog display timepiece
GB2144255B (en) * 1983-07-28 1987-01-14 Secr Defence A meter display
JPS6349749Y2 (en) * 1987-06-08 1988-12-21
FR2639754A1 (en) * 1988-11-30 1990-06-01 Jaeger Improved liquid-crystal display device
KR102162257B1 (en) * 2014-07-31 2020-10-07 엘지디스플레이 주식회사 Display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476342A1 (en) * 1980-02-18 1981-08-21 Ebauches Electroniques Sa ELECTRO-OPTICAL TIME DISPLAY DEVICE IN ANALOGUE FORM

Also Published As

Publication number Publication date
SE7812956L (en) 1979-06-23
NL7812331A (en) 1979-06-26
JPS5491197A (en) 1979-07-19
BR7808403A (en) 1980-04-01
GB2011143B (en) 1982-06-30
IT1109233B (en) 1985-12-16
IT7852376A0 (en) 1978-12-20
GB2011143A (en) 1979-07-04

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Legal Events

Date Code Title Description
ST Notification of lapse