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FR2139041B1 - - Google Patents

Info

Publication number
FR2139041B1
FR2139041B1 FR7218693A FR7218693A FR2139041B1 FR 2139041 B1 FR2139041 B1 FR 2139041B1 FR 7218693 A FR7218693 A FR 7218693A FR 7218693 A FR7218693 A FR 7218693A FR 2139041 B1 FR2139041 B1 FR 2139041B1
Authority
FR
France
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
FR7218693A
Other languages
French (fr)
Other versions
FR2139041A1 (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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of FR2139041A1 publication Critical patent/FR2139041A1/fr
Application granted granted Critical
Publication of FR2139041B1 publication Critical patent/FR2139041B1/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
    • G09G3/20—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
    • G09G3/36—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 liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
FR7218693A 1971-05-25 1972-05-25 Liquid crystal display matrix - with automatic blanking for non-addressed cross points Granted FR2139041A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1685971 1971-05-25

Publications (2)

Publication Number Publication Date
FR2139041A1 FR2139041A1 (en) 1973-01-05
FR2139041B1 true FR2139041B1 (de) 1976-11-19

Family

ID=10084984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7218693A Granted FR2139041A1 (en) 1971-05-25 1972-05-25 Liquid crystal display matrix - with automatic blanking for non-addressed cross points

Country Status (2)

Country Link
DE (1) DE2225107A1 (de)
FR (1) FR2139041A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720636B2 (de) * 1973-03-27 1982-04-30
FR2230410A1 (en) * 1973-05-24 1974-12-20 Commissariat Energie Atomique Control of molecular orientation in liq. crystals - by applying electric field at varying frequencies
CH617281A5 (de) * 1977-07-29 1980-05-14 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
DE2225107A1 (de) 1972-12-07
FR2139041A1 (en) 1973-01-05

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Legal Events

Date Code Title Description
ST Notification of lapse