EP1079363A3 - Driving method for liquid crystal device - Google Patents

Driving method for liquid crystal device Download PDF

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Publication number
EP1079363A3
EP1079363A3 EP00307292A EP00307292A EP1079363A3 EP 1079363 A3 EP1079363 A3 EP 1079363A3 EP 00307292 A EP00307292 A EP 00307292A EP 00307292 A EP00307292 A EP 00307292A EP 1079363 A3 EP1079363 A3 EP 1079363A3
Authority
EP
European Patent Office
Prior art keywords
liquid crystal
crystal device
driving method
tilt angle
substrates
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.)
Withdrawn
Application number
EP00307292A
Other languages
German (de)
French (fr)
Other versions
EP1079363A2 (en
Inventor
Yukio Hanyu
Koichi Sato
Koji Noguchi
Takao Takiguchi
Shinichi Nakamura
Yasushi Shimizu
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of EP1079363A2 publication Critical patent/EP1079363A2/en
Publication of EP1079363A3 publication Critical patent/EP1079363A3/en
Withdrawn legal-status Critical Current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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3651—Control of matrices with row and column drivers using an active matrix using multistable liquid crystals, 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
    • 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
    • G09G2320/043—Preventing or counteracting the effects of ageing

Abstract

A driving method for a liquid crystal device of the type comprising a pair of oppositely disposed substrates each provided with an electrode, a chiral smectic liquid crystal disposed between the substrates to form a plurality of pixels and to be placed in a monostable state under no voltage application, and a plurality of active elements each of which is provided to an associated pixel and is connected with an associated electrode so as to effect a matrix drive of the liquid crystal device includes a step of driving the liquid crystal device so that the liquid crystal is tilted from the monostable state to provide a maximum tilt angle in actual drive smaller than a saturation tilt angle. The drive method is effective in suppressing burning or alignment state change of the chiral smectic liquid crystal, thus improving display characteristics.
Figure 00000001
EP00307292A 1999-08-25 2000-08-24 Driving method for liquid crystal device Withdrawn EP1079363A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP23767699 1999-08-25
JP23767699 1999-08-25
JP2000253308A JP2001133751A (en) 1999-08-25 2000-08-24 Method of driving liquid crystal element
JP2000253308 2000-08-24

Publications (2)

Publication Number Publication Date
EP1079363A2 EP1079363A2 (en) 2001-02-28
EP1079363A3 true EP1079363A3 (en) 2002-03-27

Family

ID=26533314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00307292A Withdrawn EP1079363A3 (en) 1999-08-25 2000-08-24 Driving method for liquid crystal device

Country Status (3)

Country Link
EP (1) EP1079363A3 (en)
JP (1) JP2001133751A (en)
KR (1) KR100344366B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000275683A (en) * 1999-03-25 2000-10-06 Canon Inc Liquid crystal element and method for driving the liquid crystal element
KR100412489B1 (en) * 2001-10-10 2003-12-31 삼성전자주식회사 ferroelectric liquid crystal display
KR100412491B1 (en) * 2001-10-10 2003-12-31 삼성전자주식회사 Reflective type ferroelectric liquid crystal display
JP2008046651A (en) * 2007-09-18 2008-02-28 Fujitsu Ltd Driving method of liquid crystal display

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5847799A (en) * 1995-05-31 1998-12-08 Casio Computer Co., Ltd. Antiferroelectric liquid crystal display device
US5920301A (en) * 1994-06-10 1999-07-06 Casio Computer Co., Ltd. Liquid crystal display apparatus using liquid crystal having ferroelectric phase and method of driving liquid crystal display device using liquid crystal having ferroelectric phase
US5936689A (en) * 1997-03-14 1999-08-10 Kabushiki Kaisha Toshiba Liquid crystal display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920301A (en) * 1994-06-10 1999-07-06 Casio Computer Co., Ltd. Liquid crystal display apparatus using liquid crystal having ferroelectric phase and method of driving liquid crystal display device using liquid crystal having ferroelectric phase
US5847799A (en) * 1995-05-31 1998-12-08 Casio Computer Co., Ltd. Antiferroelectric liquid crystal display device
US5936689A (en) * 1997-03-14 1999-08-10 Kabushiki Kaisha Toshiba Liquid crystal display device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHANDANI A D L ET AL: "TRISTABLE SWITCHING IN SURFACE STABILIZED FERROELECTRIC LIQUID CRYSTALS WITH A LARGE SPONTANEOUS POLARIZATION", JAPANESE JOURNAL OF APPLIED PHYSICS, PUBLICATION OFFICE JAPANESE JOURNAL OF APPLIED PHYSICS. TOKYO, JP, vol. 27, no. 5, 1 May 1988 (1988-05-01), pages L729 - L732, XP002036252, ISSN: 0021-4922 *

Also Published As

Publication number Publication date
KR20010021414A (en) 2001-03-15
EP1079363A2 (en) 2001-02-28
KR100344366B1 (en) 2002-07-24
JP2001133751A (en) 2001-05-18

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