GB2301450B - Temperature compensation of ferro-electric liquid crystal displays - Google Patents

Temperature compensation of ferro-electric liquid crystal displays

Info

Publication number
GB2301450B
GB2301450B GB9618092A GB9618092A GB2301450B GB 2301450 B GB2301450 B GB 2301450B GB 9618092 A GB9618092 A GB 9618092A GB 9618092 A GB9618092 A GB 9618092A GB 2301450 B GB2301450 B GB 2301450B
Authority
GB
United Kingdom
Prior art keywords
ferro
liquid crystal
temperature compensation
crystal displays
electric liquid
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.)
Revoked
Application number
GB9618092A
Other versions
GB2301450A (en
GB9618092D0 (en
Inventor
Jonathan Rennie Hughes
David Charles Scattergood
Michael John Towler
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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
Priority claimed from GB9404356A external-priority patent/GB9404356D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9618092A priority Critical patent/GB2301450B/en
Publication of GB9618092D0 publication Critical patent/GB9618092D0/en
Publication of GB2301450A publication Critical patent/GB2301450A/en
Application granted granted Critical
Publication of GB2301450B publication Critical patent/GB2301450B/en
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0204—Compensation of DC component across the pixels 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
GB9618092A 1994-03-07 1995-02-28 Temperature compensation of ferro-electric liquid crystal displays Revoked GB2301450B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9618092A GB2301450B (en) 1994-03-07 1995-02-28 Temperature compensation of ferro-electric liquid crystal displays

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9404356A GB9404356D0 (en) 1994-03-07 1994-03-07 Temperature compensation of ferroelectric liquid crystal displays
PCT/GB1995/000417 WO1995024715A1 (en) 1994-03-07 1995-02-28 Temperature compensation of ferroelectric liquid crystal displays
GB9618092A GB2301450B (en) 1994-03-07 1995-02-28 Temperature compensation of ferro-electric liquid crystal displays

Publications (3)

Publication Number Publication Date
GB9618092D0 GB9618092D0 (en) 1996-10-09
GB2301450A GB2301450A (en) 1996-12-04
GB2301450B true GB2301450B (en) 1998-01-14

Family

ID=26304445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9618092A Revoked GB2301450B (en) 1994-03-07 1995-02-28 Temperature compensation of ferro-electric liquid crystal displays

Country Status (1)

Country Link
GB (1) GB2301450B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1039772A (en) * 1996-07-29 1998-02-13 Mitsubishi Electric Corp Projection type liquid crystal display device
JP2002325831A (en) * 2001-05-02 2002-11-12 Asahi Optical Co Ltd Filling material for organism and manufacture thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0197743A2 (en) * 1985-04-03 1986-10-15 Stc Plc Addressing liquid crystal cells
JPS62215241A (en) * 1986-03-17 1987-09-21 Seiko Instr & Electronics Ltd Ferroelectric liquid crystal electrooptic device
EP0285402A2 (en) * 1987-03-31 1988-10-05 Canon Kabushiki Kaisha Display device
EP0303343A1 (en) * 1987-07-18 1989-02-15 Nortel Networks Corporation Addressing liquid crystal cells
US4923285A (en) * 1985-04-22 1990-05-08 Canon Kabushiki Kaisha Drive apparatus having a temperature detector
WO1992002925A1 (en) * 1990-08-07 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Multiplex addressing of ferro-electric liquid crystal displays

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0197743A2 (en) * 1985-04-03 1986-10-15 Stc Plc Addressing liquid crystal cells
US4923285A (en) * 1985-04-22 1990-05-08 Canon Kabushiki Kaisha Drive apparatus having a temperature detector
JPS62215241A (en) * 1986-03-17 1987-09-21 Seiko Instr & Electronics Ltd Ferroelectric liquid crystal electrooptic device
EP0285402A2 (en) * 1987-03-31 1988-10-05 Canon Kabushiki Kaisha Display device
EP0303343A1 (en) * 1987-07-18 1989-02-15 Nortel Networks Corporation Addressing liquid crystal cells
WO1992002925A1 (en) * 1990-08-07 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Multiplex addressing of ferro-electric liquid crystal displays

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan vol. 12 no. 76(P-675) & JP 62 215 241 A *

Also Published As

Publication number Publication date
GB2301450A (en) 1996-12-04
GB9618092D0 (en) 1996-10-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010228

773K Patent revoked under sect. 73(2)/1977