CH623709GA3 - Method for driving an electrooptic display device - Google Patents

Method for driving an electrooptic display device Download PDF

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Publication number
CH623709GA3
CH623709GA3 CH1319777A CH1319777A CH623709GA3 CH 623709G A3 CH623709G A3 CH 623709GA3 CH 1319777 A CH1319777 A CH 1319777A CH 1319777 A CH1319777 A CH 1319777A CH 623709G A3 CH623709G A3 CH 623709GA3
Authority
CH
Switzerland
Prior art keywords
display
electrodes
column
display device
row
Prior art date
Application number
CH1319777A
Other versions
CH623709B (en
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
Publication of CH623709B publication Critical patent/CH623709B/en
Application filed filed Critical
Priority to CH1319777A priority Critical patent/CH623709GA3/en
Priority to DE19772752602 priority patent/DE2752602A1/en
Publication of CH623709GA3 publication Critical patent/CH623709GA3/en

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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)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Control Of El Displays (AREA)
  • Liquid Crystal (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 CH623709B (en)
CH623709GA3 true 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)

Families Citing this family (5)

* 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
EP0084603A1 (en) * 1982-01-25 1983-08-03 American Cyanamid Company Multiplexing driving method and system for an electrochromic display
NL8602327A (en) * 1986-09-15 1988-04-05 Philips Nv DISPLAY DEVICE.
NL194875C (en) * 1992-04-01 2003-05-06 Citizen Watch Co Ltd Display device containing a liquid crystal material.
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

Also Published As

Publication number Publication date
DE2752602A1 (en) 1979-05-03
CH623709B (en)

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Legal Events

Date Code Title Description
PLX Patent declared invalid from date of grant onwards