DE3464098D1 - Sequential control method for a liquid crystal matrix display exhibiting the mematic-cholesteric phase change effect - Google Patents

Sequential control method for a liquid crystal matrix display exhibiting the mematic-cholesteric phase change effect

Info

Publication number
DE3464098D1
DE3464098D1 DE8484400320T DE3464098T DE3464098D1 DE 3464098 D1 DE3464098 D1 DE 3464098D1 DE 8484400320 T DE8484400320 T DE 8484400320T DE 3464098 T DE3464098 T DE 3464098T DE 3464098 D1 DE3464098 D1 DE 3464098D1
Authority
DE
Germany
Prior art keywords
mematic
liquid crystal
control method
phase change
change effect
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
Application number
DE8484400320T
Other languages
English (en)
Inventor
Jean Frederic Clerc
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of DE3464098D1 publication Critical patent/DE3464098D1/de
Expired 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0469—Details of the physics of pixel operation
    • G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
    • G09G2300/0482—Use of memory effects in nematic liquid crystals
    • G09G2300/0486—Cholesteric liquid crystals, including chiral-nematic liquid crystals, with transitions between focal conic, planar, and homeotropic states
    • 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

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)
DE8484400320T 1983-02-24 1984-02-16 Sequential control method for a liquid crystal matrix display exhibiting the mematic-cholesteric phase change effect Expired DE3464098D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8303047A FR2541807B1 (fr) 1983-02-24 1983-02-24 Procede de commande sequentielle d'un imageur matriciel utilisant l'effet de transition de phase cholesterique-nematique d'un cristal liquide

Publications (1)

Publication Number Publication Date
DE3464098D1 true DE3464098D1 (en) 1987-07-09

Family

ID=9286230

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484400320T Expired DE3464098D1 (en) 1983-02-24 1984-02-16 Sequential control method for a liquid crystal matrix display exhibiting the mematic-cholesteric phase change effect

Country Status (6)

Country Link
US (1) US4625204A (de)
EP (1) EP0120732B1 (de)
JP (1) JPS59164597A (de)
CA (1) CA1231187A (de)
DE (1) DE3464098D1 (de)
FR (1) FR2541807B1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757350A (en) * 1984-01-23 1998-05-26 Canon Kabushiki Kaisha Driving method for optical modulation device
FR2558606B1 (fr) * 1984-01-23 1993-11-05 Canon Kk Procede de commande d'un dispositif de modulation optique et dispositif de modulation optique pour sa mise en oeuvre
US5296953A (en) * 1984-01-23 1994-03-22 Canon Kabushiki Kaisha Driving method for ferro-electric liquid crystal optical modulation device
JPS61156229A (ja) * 1984-12-28 1986-07-15 Canon Inc 液晶装置
GB2173335B (en) * 1985-04-03 1988-02-17 Stc Plc Addressing liquid crystal cells
GB2173336B (en) * 1985-04-03 1988-04-27 Stc Plc Addressing liquid crystal cells
SE8504760D0 (sv) * 1985-10-14 1985-10-14 Sven Torbjorn Lagerwall Electronic addressing of ferroelectric liquid crystal devices
US5255110A (en) * 1985-12-25 1993-10-19 Canon Kabushiki Kaisha Driving method for optical modulation device using ferroelectric liquid crystal
US4836656A (en) * 1985-12-25 1989-06-06 Canon Kabushiki Kaisha Driving method for optical modulation device
GB2207272B (en) * 1987-07-18 1991-08-14 Stc Plc Addressing liquid crystal cells
GB8726996D0 (en) * 1987-11-18 1987-12-23 Secr Defence Multiplex addressing of ferro-electric liquid crystal displays
FR2627308B1 (fr) * 1988-02-15 1990-06-01 Commissariat Energie Atomique Procede de commande d'un ecran d'affichage matriciel permettant d'ajuster son contraste et dispositif pour la mise en oeuvre de ce procede
US5424753A (en) * 1990-12-31 1995-06-13 Casio Computer Co., Ltd. Method of driving liquid-crystal display elements
JPH05127616A (ja) * 1991-10-31 1993-05-25 Canon Inc 電気光学表示装置および電気光学素子駆動装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041481A (en) * 1974-10-05 1977-08-09 Matsushita Electric Industrial Co., Ltd. Scanning apparatus for an electrophoretic matrix display panel
GB1502280A (en) * 1974-12-11 1978-03-01 Secr Defence Liquid crystal displays
JPS53995A (en) * 1976-06-25 1978-01-07 Toshiba Corp Driving system for matrix of storage type liquid crystal element
GB2004679B (en) * 1977-09-26 1982-03-03 Secr Defence Matrix addressing liquid crystal display
JPS5476095A (en) * 1977-11-30 1979-06-18 Toshiba Corp Matrix drive system of storage type liquid crystal element
US4380008A (en) * 1978-09-29 1983-04-12 Hitachi, Ltd. Method of driving a matrix type phase transition liquid crystal display device to obtain a holding effect and improved response time for the erasing operation
JPS5576393A (en) * 1978-12-04 1980-06-09 Hitachi Ltd Matrix drive method for guestthostttype phase transfer liquid crystal
US4529271A (en) * 1982-03-12 1985-07-16 At&T Bell Laboratories Matrix addressed bistable liquid crystal display
JPH0629919B2 (ja) * 1982-04-16 1994-04-20 株式会社日立製作所 液晶素子の駆動方法

Also Published As

Publication number Publication date
CA1231187A (en) 1988-01-05
EP0120732A1 (de) 1984-10-03
JPS59164597A (ja) 1984-09-17
FR2541807A1 (fr) 1984-08-31
EP0120732B1 (de) 1987-06-03
FR2541807B1 (fr) 1985-06-07
US4625204A (en) 1986-11-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee