ATE150570T1 - LIQUID CRYSTAL DEVICE - Google Patents

LIQUID CRYSTAL DEVICE

Info

Publication number
ATE150570T1
ATE150570T1 AT91114021T AT91114021T ATE150570T1 AT E150570 T1 ATE150570 T1 AT E150570T1 AT 91114021 T AT91114021 T AT 91114021T AT 91114021 T AT91114021 T AT 91114021T AT E150570 T1 ATE150570 T1 AT E150570T1
Authority
AT
Austria
Prior art keywords
liquid crystal
crystal device
spontaneous polarization
electrode substrates
crystal element
Prior art date
Application number
AT91114021T
Other languages
German (de)
Inventor
Shuzo Kaneko
Ryoji Fujiwara
Akio Yoshida
Tomoko Maruyama
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
Priority claimed from JP03192048A external-priority patent/JP3143497B2/en
Application filed by Canon Kk filed Critical Canon Kk
Application granted granted Critical
Publication of ATE150570T1 publication Critical patent/ATE150570T1/en

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
    • 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
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/065—Waveforms comprising zero voltage phase or pause
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/207—Display of intermediate tones by domain size control

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)
  • Liquid Crystal Substances (AREA)

Abstract

Disclosed is a liquid crystal element comprising a liquid crystal exhibiting spontaneous polarization, a pair of electrode substrates for sandwiching said liquid crystal therebetween, characterized in that insulating layers are formed between said electrode substrates and said liquid crystal, wherein a spontaneous polarization Ps value of said liquid crystal, an interelectrode composite capacitance Ci of said insulation layers, and a voltage threshold value Vth of optical response of said liquid crystal in said liquid crystal element satisfy the following condition: <MATH> <IMAGE>
AT91114021T 1990-08-22 1991-08-21 LIQUID CRYSTAL DEVICE ATE150570T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP22171090 1990-08-22
JP22170990 1990-08-22
JP03192048A JP3143497B2 (en) 1990-08-22 1991-07-31 Liquid crystal device

Publications (1)

Publication Number Publication Date
ATE150570T1 true ATE150570T1 (en) 1997-04-15

Family

ID=27326554

Family Applications (2)

Application Number Title Priority Date Filing Date
AT91114021T ATE150570T1 (en) 1990-08-22 1991-08-21 LIQUID CRYSTAL DEVICE
AT96102488T ATE227437T1 (en) 1990-08-22 1991-08-21 LIQUID CRYSTAL DEVICE

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT96102488T ATE227437T1 (en) 1990-08-22 1991-08-21 LIQUID CRYSTAL DEVICE

Country Status (4)

Country Link
EP (1) EP0717305B1 (en)
AT (2) ATE150570T1 (en)
DE (2) DE69125228T2 (en)
ES (1) ES2098286T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19732381A1 (en) 1997-07-25 1999-01-28 Hoechst Ag Ferroelectric liquid crystal display with active matrix elements

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3854751T2 (en) * 1987-06-12 1996-06-13 Canon Kk Device with a ferroelectric liquid crystal.

Also Published As

Publication number Publication date
DE69133146D1 (en) 2002-12-12
DE69125228D1 (en) 1997-04-24
ATE227437T1 (en) 2002-11-15
DE69125228T2 (en) 1997-08-28
ES2098286T3 (en) 1997-05-01
EP0717305A2 (en) 1996-06-19
EP0717305B1 (en) 2002-11-06
DE69133146T2 (en) 2004-02-05
EP0717305A3 (en) 1996-11-20

Similar Documents

Publication Publication Date Title
ES2080046T3 (en) DEVICE FOR FERROELECTRIC LIQUID CRYSTAL.
CA2057596A1 (en) Waveguide type optical device
KR860002741A (en) Light sensor
ES2078474T3 (en) ELECTROCHROME GLASS.
EP0157489A3 (en) Amorphous silicon field-effect transistors, method for their manufacture and their use in liquid crystal display devices
ATE216090T1 (en) LIQUID CRYSTAL DEVICE
EA200100542A1 (en) FERROELECTRIC VARACTOR WITH BUILT-IN DEVICES FOR DIRECT CURRENT PASSING
KR930013803A (en) Dielectric display element
DE3881070D1 (en) ACTIVE LIQUID CRYSTAL DISPLAY DEVICE IN MATRIX ARRANGEMENT.
GB1368378A (en) Ferroelectrictype optical filter
EP0376648A3 (en) A liquid crystal display apparatus
KR920701861A (en) Ferroelectric liquid crystal display
ATE150570T1 (en) LIQUID CRYSTAL DEVICE
KR910005213A (en) LCD Display
EP0390571A3 (en) Organic thin film display element
GB2007022A (en) A method of polarizing a thermoplastic resin film
GB2090036B (en) Liquid crystal display device
KR920016877A (en) Frequency Controlled Optics
GB2062330B (en) Electrochromic display device
JPS6410214A (en) Ferroelectric liquid crystal element
KR920701858A (en) Ferroelectric liquid crystal system with high spontaneous polarization and excellent alignment characteristics
JPS6459323A (en) Active device
JPS6478225A (en) Ferroelectric liquid crystal element
JPS6463931A (en) Liquid crystal optical modulation device
FR2250458A5 (en) Electro-optical display device - has birefringent strip and liquid crystal between pair of electrodes

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties