GB2208559B - Ferroelectric liquid crystal devices - Google Patents

Ferroelectric liquid crystal devices

Info

Publication number
GB2208559B
GB2208559B GB8719078A GB8719078A GB2208559B GB 2208559 B GB2208559 B GB 2208559B GB 8719078 A GB8719078 A GB 8719078A GB 8719078 A GB8719078 A GB 8719078A GB 2208559 B GB2208559 B GB 2208559B
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
ferroelectric liquid
crystal devices
devices
ferroelectric
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 - Fee Related
Application number
GB8719078A
Other versions
GB2208559A (en
GB8719078D0 (en
Inventor
Carolyn Bowry
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB8719078A priority Critical patent/GB2208559B/en
Publication of GB8719078D0 publication Critical patent/GB8719078D0/en
Priority to DE88906995T priority patent/DE3886192T2/en
Priority to JP50664288A priority patent/JPH02500936A/en
Priority to PCT/GB1988/000669 priority patent/WO1989001680A1/en
Priority to EP19880906995 priority patent/EP0327627B1/en
Publication of GB2208559A publication Critical patent/GB2208559A/en
Application granted granted Critical
Publication of GB2208559B publication Critical patent/GB2208559B/en
Priority to US07/865,697 priority patent/US5285214A/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G09G2310/06—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
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
GB8719078A 1987-08-12 1987-08-12 Ferroelectric liquid crystal devices Expired - Fee Related GB2208559B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB8719078A GB2208559B (en) 1987-08-12 1987-08-12 Ferroelectric liquid crystal devices
EP19880906995 EP0327627B1 (en) 1987-08-12 1988-08-12 Apparatus and method for driving a ferroelectric liquid crystal device
JP50664288A JPH02500936A (en) 1987-08-12 1988-08-12 Ferroelectric liquid crystal device
PCT/GB1988/000669 WO1989001680A1 (en) 1987-08-12 1988-08-12 Apparatus and method for driving a ferroelectric liquid crystal device
DE88906995T DE3886192T2 (en) 1987-08-12 1988-08-12 DEVICE AND METHOD FOR DRIVING A FERROELECTRIC LIQUID CRYSTAL DEVICE.
US07/865,697 US5285214A (en) 1987-08-12 1992-04-08 Apparatus and method for driving a ferroelectric liquid crystal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8719078A GB2208559B (en) 1987-08-12 1987-08-12 Ferroelectric liquid crystal devices

Publications (3)

Publication Number Publication Date
GB8719078D0 GB8719078D0 (en) 1987-09-16
GB2208559A GB2208559A (en) 1989-04-05
GB2208559B true GB2208559B (en) 1991-09-04

Family

ID=10622191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8719078A Expired - Fee Related GB2208559B (en) 1987-08-12 1987-08-12 Ferroelectric liquid crystal devices

Country Status (5)

Country Link
EP (1) EP0327627B1 (en)
JP (1) JPH02500936A (en)
DE (1) DE3886192T2 (en)
GB (1) GB2208559B (en)
WO (1) WO1989001680A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666923A2 (en) * 1990-06-22 1992-03-20 Centre Nat Rech Scient Improvements to nematic liquid-crystal displays, with surface bistability, controlled by flexoelectric effect
JP2990297B2 (en) * 1990-09-10 1999-12-13 セイコーインスツルメンツ株式会社 Liquid crystal light valve device and liquid crystal light valve driving method
GB2249653B (en) * 1990-10-01 1994-09-07 Marconi Gec Ltd Ferroelectric liquid crystal devices
EP0561135A2 (en) * 1992-02-08 1993-09-22 Hoechst Aktiengesellschaft Method of driving bistable displays, in particular ferroelectric liquid crystal displays
GB2293906A (en) * 1994-10-03 1996-04-10 Sharp Kk Liquid crystal display
GB2333634B (en) 1998-01-21 2002-02-20 Sharp Kk Liquid crystal device and method of addressing liquid crystal device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770502A (en) * 1986-01-10 1988-09-13 Hitachi, Ltd. Ferroelectric liquid crystal matrix driving apparatus and method

Also Published As

Publication number Publication date
WO1989001680A1 (en) 1989-02-23
DE3886192D1 (en) 1994-01-20
GB2208559A (en) 1989-04-05
GB8719078D0 (en) 1987-09-16
DE3886192T2 (en) 1994-04-14
EP0327627A1 (en) 1989-08-16
JPH02500936A (en) 1990-03-29
EP0327627B1 (en) 1993-12-08

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Legal Events

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

Effective date: 19960812