GB2220096B - Co-ordinate addressing liquid crystal cells - Google Patents

Co-ordinate addressing liquid crystal cells

Info

Publication number
GB2220096B
GB2220096B GB8814658A GB8814658A GB2220096B GB 2220096 B GB2220096 B GB 2220096B GB 8814658 A GB8814658 A GB 8814658A GB 8814658 A GB8814658 A GB 8814658A GB 2220096 B GB2220096 B GB 2220096B
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal cells
addressing liquid
ordinate
ordinate addressing
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.)
Expired - Lifetime
Application number
GB8814658A
Other versions
GB2220096A (en
GB8814658D0 (en
Inventor
Peter John Ayliffe
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.)
STC PLC
Nortel Networks Optical Components Ltd
Original Assignee
STC PLC
Northern Telecom Europe 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 STC PLC, Northern Telecom Europe Ltd filed Critical STC PLC
Priority to GB8814658A priority Critical patent/GB2220096B/en
Publication of GB8814658D0 publication Critical patent/GB8814658D0/en
Publication of GB2220096A publication Critical patent/GB2220096A/en
Application granted granted Critical
Publication of GB2220096B publication Critical patent/GB2220096B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric 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
    • G09G3/20—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
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3681—Details of drivers for scan electrodes suitable for passive matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0205—Simultaneous scanning of several lines in flat panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

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)
GB8814658A 1988-06-21 1988-06-21 Co-ordinate addressing liquid crystal cells Expired - Lifetime GB2220096B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8814658A GB2220096B (en) 1988-06-21 1988-06-21 Co-ordinate addressing liquid crystal cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8814658A GB2220096B (en) 1988-06-21 1988-06-21 Co-ordinate addressing liquid crystal cells

Publications (3)

Publication Number Publication Date
GB8814658D0 GB8814658D0 (en) 1988-07-27
GB2220096A GB2220096A (en) 1989-12-28
GB2220096B true GB2220096B (en) 1992-06-10

Family

ID=10639029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8814658A Expired - Lifetime GB2220096B (en) 1988-06-21 1988-06-21 Co-ordinate addressing liquid crystal cells

Country Status (1)

Country Link
GB (1) GB2220096B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257391B (en) * 1992-07-22 1996-01-15 Seleco Spa PILOTING SYSTEM FOR A DISPLAY PANEL USING FERROELECTRIC CRYSTALS THAT PROVIDES THE USE OF A PILOT SIGNAL PRESENTING A CANCELLATION PULSE.
SE519582C2 (en) * 2001-02-23 2003-03-18 Lc Tec Sweden Ab Dispalay of bistable cholesteric liquid crystals and method of changing the liquid crystal phase of such

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2007002A (en) * 1977-09-14 1979-05-10 Sharp Kk Electroluminescent flat TV display with facilities for image freezing
GB1592795A (en) * 1976-10-01 1981-07-08 Siemens Ag Data display screen systems utilising a bistable voltage-controlled medium
EP0084603A1 (en) * 1982-01-25 1983-08-03 American Cyanamid Company Multiplexing driving method and system for an electrochromic display

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1592795A (en) * 1976-10-01 1981-07-08 Siemens Ag Data display screen systems utilising a bistable voltage-controlled medium
GB2007002A (en) * 1977-09-14 1979-05-10 Sharp Kk Electroluminescent flat TV display with facilities for image freezing
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
GB2220096A (en) 1989-12-28
GB8814658D0 (en) 1988-07-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20080620