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ATE140097T1 - METHOD FOR CONTROLLING A FERROELECTRIC LIQUID CRYSTAL ELEMENT AND FERROELECTRIC LIQUID CRYSTAL DISPLAY - Google Patents

METHOD FOR CONTROLLING A FERROELECTRIC LIQUID CRYSTAL ELEMENT AND FERROELECTRIC LIQUID CRYSTAL DISPLAY

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Publication number
ATE140097T1
ATE140097T1AT91104222TAT91104222TATE140097T1AT E140097 T1ATE140097 T1AT E140097T1AT 91104222 TAT91104222 TAT 91104222TAT 91104222 TAT91104222 TAT 91104222TAT E140097 T1ATE140097 T1AT E140097T1
Authority
AT
Austria
Prior art keywords
liquid crystal
ferroelectric liquid
tone signal
pixel
signal voltage
Prior art date
Application number
AT91104222T
Other languages
German (de)
Inventor
Yutaka Inaba
Katsumi Kurematsu
Shuzo Kaneko
Original Assignee
Canon Kk
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 KkfiledCriticalCanon Kk
Application grantedgrantedCritical
Publication of ATE140097T1publicationCriticalpatent/ATE140097T1/en

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Abstract

A method of driving a liquid crystal display element in which a switching element is provided for each of pixel electrodes arranged in a matrix manner and a ferroelectric liquid crystal is sandwiched between the pixel electrodes and a counter electrode includes the steps of applying a reset voltage for resetting the entire pixel to a first stable state of the ferroelectric liquid crystal across the pixel electrode and the counter electrode, partially transiting the pixel to a second stable state by a tone signal voltage having a pole opposite to that of the reset voltage, and reversing the pole of the reset voltage every predetermined period. Assuming that a state reverse ratio of the ferroelectric liquid crystal is T(V)% when the tone signal voltage is V, a tone signal voltage V1 after negative resetting and a corresponding tone signal voltage -V2 after positive resetting satisfy the following relation: T(V1) + T(V2) = 100 <IMAGE>
AT91104222T1990-03-201991-03-19 METHOD FOR CONTROLLING A FERROELECTRIC LIQUID CRYSTAL ELEMENT AND FERROELECTRIC LIQUID CRYSTAL DISPLAYATE140097T1 (en)

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
JP70511901990-03-20
JP3074205AJP2805253B2 (en)1990-03-201991-03-15 Ferroelectric liquid crystal device

Publications (1)

Publication NumberPublication Date
ATE140097T1true ATE140097T1 (en)1996-07-15

Family

ID=26411663

Family Applications (1)

Application NumberTitlePriority DateFiling Date
AT91104222TATE140097T1 (en)1990-03-201991-03-19 METHOD FOR CONTROLLING A FERROELECTRIC LIQUID CRYSTAL ELEMENT AND FERROELECTRIC LIQUID CRYSTAL DISPLAY

Country Status (4)

CountryLink
EP (1)EP0448032B1 (en)
JP (1)JP2805253B2 (en)
AT (1)ATE140097T1 (en)
DE (1)DE69120564T2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2746486B2 (en)*1991-08-201998-05-06シャープ株式会社 Ferroelectric liquid crystal device
JP2806098B2 (en)*1991-10-091998-09-30松下電器産業株式会社 Driving method of display device
JPH05241138A (en)*1991-12-061993-09-21Canon IncLiquid crystal optical element
JP2866518B2 (en)*1992-01-171999-03-08シャープ株式会社 Driving method of antiferroelectric liquid crystal device
JPH07120722A (en)*1993-06-301995-05-12Sharp Corp Liquid crystal display device and driving method thereof
EP0724759B1 (en)*1994-08-232001-04-11Koninklijke Philips Electronics N.V.Acive matrix liquid crystal display
JP3534086B2 (en)*2001-04-272004-06-07松下電器産業株式会社 Driving method of liquid crystal display device
KR100560913B1 (en)2001-02-052006-03-14마쯔시다덴기산교 가부시키가이샤 LCD and its driving method
US8564514B2 (en)2001-04-182013-10-22Fujitsu LimitedDriving method of liquid crystal display device and liquid crystal display device
TWI404011B (en)2009-03-182013-08-01Pervasive Display Co LtdNon-volatile display module and non-volatile display apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB2173336B (en)*1985-04-031988-04-27Stc PlcAddressing liquid crystal cells
JP2733222B2 (en)*1987-03-311998-03-30キヤノン株式会社 Liquid crystal device
NL8700627A (en)*1987-03-171988-10-17Philips Nv METHOD FOR CONTROLLING A LIQUID CRYSTAL DISPLAY AND ASSOCIATED DISPLAY.
NL8802436A (en)*1988-10-051990-05-01Philips Electronics Nv METHOD FOR CONTROLLING A DISPLAY DEVICE

Also Published As

Publication numberPublication date
DE69120564D1 (en)1996-08-08
EP0448032A2 (en)1991-09-25
DE69120564T2 (en)1996-12-19
EP0448032A3 (en)1992-11-19
JPH04218023A (en)1992-08-07
EP0448032B1 (en)1996-07-03
JP2805253B2 (en)1998-09-30

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RERCeased as to paragraph 5 lit. 3 law introducing patent treaties
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