FR2406272A1 - Dispositif pour l'exploitation en multiplex d'elements d'affichage alphanumerique - Google Patents

Dispositif pour l'exploitation en multiplex d'elements d'affichage alphanumerique

Info

Publication number
FR2406272A1
FR2406272A1 FR7828969A FR7828969A FR2406272A1 FR 2406272 A1 FR2406272 A1 FR 2406272A1 FR 7828969 A FR7828969 A FR 7828969A FR 7828969 A FR7828969 A FR 7828969A FR 2406272 A1 FR2406272 A1 FR 2406272A1
Authority
FR
France
Prior art keywords
pauses
led display
display units
operation circuit
multiplex operation
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
FR7828969A
Other languages
English (en)
Other versions
FR2406272B3 (fr
Inventor
Wolfgang Hoehn
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of FR2406272A1 publication Critical patent/FR2406272A1/fr
Application granted granted Critical
Publication of FR2406272B3 publication Critical patent/FR2406272B3/fr
Granted legal-status Critical Current

Links

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
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
    • G09G3/12—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using electroluminescent elements
    • G09G3/14—Semiconductor devices, e.g. diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

Circuit de commande par multiplexage de dispositifs d'affichage alphanumérique à diodes électroluminescentes ou à cristaux liquides. Un signal formé d'impulsions trapézoïdales séparées par un temps de pause donné est produit aux bornes d'un condensateur C par un amplificateur différentiel 6 commandé par un signal rectangulaire auxiliaire H. Le signal multiplex rectangulaire SM correspondant à la connexion d'une matrice particulière du dispositif d'affichage commande un transistor de commutation 41, 51, ... pour assurer le transfert de l'impulsion trapézoïdale précédente sur la suite correspondante S'M via un amplificateur opérationnel associé 4, 5... Le changement de l'information à afficher s'effectue pendant les pauses entre les impulsions S'M . Application particulière aux récepteurs de radiodiffusion pour lesquels ce circuit élimine le bruit dû à l'opération de multiplexage.
FR7828969A 1977-10-12 1978-10-11 Dispositif pour l'exploitation en multiplex d'elements d'affichage alphanumerique Granted FR2406272A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772745817 DE2745817A1 (de) 1977-10-12 1977-10-12 Schaltungsanordnung fuer den multiplexbetrieb von alphanumerischen anzeige-einheiten

Publications (2)

Publication Number Publication Date
FR2406272A1 true FR2406272A1 (fr) 1979-05-11
FR2406272B3 FR2406272B3 (fr) 1981-07-10

Family

ID=6021235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828969A Granted FR2406272A1 (fr) 1977-10-12 1978-10-11 Dispositif pour l'exploitation en multiplex d'elements d'affichage alphanumerique

Country Status (3)

Country Link
JP (1) JPS5484927A (fr)
DE (1) DE2745817A1 (fr)
FR (1) FR2406272A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089688A2 (fr) * 1982-03-23 1983-09-28 Nec Corporation Dispositif d'affichage
FR2566566A1 (fr) * 1984-06-25 1985-12-27 Dev Prod Elect Et Panneau d'affichage de caracteres alphanumeriques de faibles dimensions

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950991A1 (de) * 1979-12-18 1981-06-25 Siemens AG, 1000 Berlin und 8000 München Elektronische schaltung mit led-anzeige
DE3302288A1 (de) * 1983-01-25 1984-07-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur getasteten ansteuerung von leuchtdioden
US7057590B2 (en) * 2003-11-04 2006-06-06 Infineon Technologies Ag LED array implementation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089688A2 (fr) * 1982-03-23 1983-09-28 Nec Corporation Dispositif d'affichage
EP0089688A3 (en) * 1982-03-23 1987-05-13 Nec Corporation Display apparatus
FR2566566A1 (fr) * 1984-06-25 1985-12-27 Dev Prod Elect Et Panneau d'affichage de caracteres alphanumeriques de faibles dimensions
EP0167444A1 (fr) * 1984-06-25 1986-01-08 SOCIETE D'ETUDES POUR LE DEVELOPPEMENT DES PRODUCTIONS ELECTRONIQUES société anonyme Panneau d'affichage de caractères alphanumériques de faibles dimensions

Also Published As

Publication number Publication date
FR2406272B3 (fr) 1981-07-10
JPS5484927A (en) 1979-07-06
DE2745817A1 (de) 1979-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse