CH623709B - METHOD OF CONTROLLING AN ELECTRO-OPTICAL DISPLAY DEVICE. - Google Patents

METHOD OF CONTROLLING AN ELECTRO-OPTICAL DISPLAY DEVICE.

Info

Publication number
CH623709B
CH623709B CH1319777A CH1319777A CH623709B CH 623709 B CH623709 B CH 623709B CH 1319777 A CH1319777 A CH 1319777A CH 1319777 A CH1319777 A CH 1319777A CH 623709 B CH623709 B CH 623709B
Authority
CH
Switzerland
Prior art keywords
display
electrodes
column
display device
row
Prior art date
Application number
CH1319777A
Other languages
German (de)
Other versions
CH623709GA3 (en
Inventor
Allan R Dr Kmetz
Juergen Dr Nehring
Original Assignee
Bbc Brown Boveri & Cie
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 of CH623709B publication Critical patent/CH623709B/en
Application filed by Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH1319777A priority Critical patent/CH623709GA3/en
Priority to DE19772752602 priority patent/DE2752602A1/en
Publication of CH623709GA3 publication Critical patent/CH623709GA3/en

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
    • G09G3/3625—Control of matrices with row and column drivers using a passive matrix using active addressing
    • 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
    • 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
    • G09G3/16—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 by control of light from an independent source
    • G09G3/18—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 by control of light from an independent source using liquid crystals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Control Of El Displays (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

For the purpose of displaying arbitrary display patterns, periodic control signals are applied in an electrooptic display device which contains a display, which is constructed from display elements arranged in the form of a matrix, and a drive circuit, to the electrodes, which are connected to one another in an electrically conductive fashion by row and column. In this arrangement, a drive signal which is independent of the display pattern to be displayed is applied to each of the n row electrodes, and a further signal is applied to each of the m column electrodes, this further signal being selected from 2<n)<n>1) different signals whose temporal variation depends at each instant on the desired display pattern of the display elements belonging to the relevant column electrode. This mode of operation can be performed using a very low number of electrode terminals and is suitable for the exceptionally contrasty representation of arbitrary display patterns. <IMAGE>
CH1319777A 1977-10-31 1977-10-31 Method for driving an electrooptic display device CH623709GA3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1319777A CH623709GA3 (en) 1977-10-31 1977-10-31 Method for driving an electrooptic display device
DE19772752602 DE2752602A1 (en) 1977-10-31 1977-11-25 METHOD OF OPERATING AN ELECTRO-OPTICAL DISPLAY DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1319777A CH623709GA3 (en) 1977-10-31 1977-10-31 Method for driving an electrooptic display device

Publications (2)

Publication Number Publication Date
CH623709B true CH623709B (en)
CH623709GA3 CH623709GA3 (en) 1981-06-30

Family

ID=4390239

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1319777A CH623709GA3 (en) 1977-10-31 1977-10-31 Method for driving an electrooptic display device

Country Status (2)

Country Link
CH (1) CH623709GA3 (en)
DE (1) DE2752602A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084603A1 (en) * 1982-01-25 1983-08-03 American Cyanamid Company Multiplexing driving method and system for an electrochromic display

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2062929B (en) * 1979-10-09 1983-08-10 Secr Defence Matrix addressing of opto-electric displays
NL8602327A (en) * 1986-09-15 1988-04-05 Philips Nv DISPLAY DEVICE.
US5959602A (en) * 1992-04-01 1999-09-28 Citizen Watch Co., Ltd. Liquid-crystal display with addressing scheme to achieve high contrast and high brightness values while maintaining fast switching
NL194875C (en) * 1992-04-01 2003-05-06 Citizen Watch Co Ltd Display device containing a liquid crystal material.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084603A1 (en) * 1982-01-25 1983-08-03 American Cyanamid Company Multiplexing driving method and system for an electrochromic display

Also Published As

Publication number Publication date
CH623709GA3 (en) 1981-06-30
DE2752602A1 (en) 1979-05-03

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