EP0717305A3 - Flüssigkristallelement und Flüssigkristallvorrichtung - Google Patents

Flüssigkristallelement und Flüssigkristallvorrichtung Download PDF

Info

Publication number: EP0717305A3
Authority: EP; European Patent Office
Prior art keywords: liquid crystal; crystal element; spontaneous polarization; electrode substrates; interelectrode
Prior art date: 1990-08-22
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.): Granted

Application number

EP96102488A

Other languages

English (en)

French (fr)

Other versions

EP0717305A2 (de

EP0717305B1 (de

Inventor

Shuzo Kaneko

Ryoji Fujiwara

Akio Yoshida

Tomoko Maruyama

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.)

1990-08-22

Filing date

1991-08-21

Publication date

1996-11-20

1991-07-31 Priority claimed from JP03192048A external-priority patent/JP3143497B2/ja

1991-08-21 Application filed by Canon Inc filed Critical Canon Inc

1996-06-19 Publication of EP0717305A2 publication Critical patent/EP0717305A2/de

1996-11-20 Publication of EP0717305A3 publication Critical patent/EP0717305A3/de

2002-11-06 Application granted granted Critical

2002-11-06 Publication of EP0717305B1 publication Critical patent/EP0717305B1/de

2011-08-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000004973 liquid crystal related substance Substances 0.000 title abstract 8
230000010287 polarization Effects 0.000 abstract 2
230000002269 spontaneous effect Effects 0.000 abstract 2
239000000758 substrate Substances 0.000 abstract 2
239000002131 composite material Substances 0.000 abstract 1
230000001747 exhibiting effect Effects 0.000 abstract 1
238000009413 insulation Methods 0.000 abstract 1
230000003287 optical effect Effects 0.000 abstract 1

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)

EP96102488A 1990-08-22 1991-08-21 Flüssigkristallvorrichtung Expired - Lifetime EP0717305B1 (de)

Applications Claiming Priority (10)

Application Number	Priority Date	Filing Date	Title
JP22170990		1990-08-22
JP22171090		1990-08-22
JP221709/90		1990-08-22
JP22170990		1990-08-22
JP22171090		1990-08-22
JP221710/90		1990-08-22
JP03192048A JP3143497B2 (ja)	1990-08-22	1991-07-31	液晶装置
JP19204891		1991-07-31
JP192048/91		1991-07-31
EP91114021A EP0473058B1 (de)	1990-08-22	1991-08-21	Flüssigkristallgerät

Related Parent Applications (2)

Application Number	Title	Priority Date	Filing Date
EP91114021.8 Division		1991-08-21
EP91114021A Division EP0473058B1 (de)	1990-08-22	1991-08-21	Flüssigkristallgerät

Publications (3)

Publication Number	Publication Date
EP0717305A2 EP0717305A2 (de)	1996-06-19
EP0717305A3 true EP0717305A3 (de)	1996-11-20
EP0717305B1 EP0717305B1 (de)	2002-11-06

Family

ID=27326554

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96102488A Expired - Lifetime EP0717305B1 (de)	1990-08-22	1991-08-21	Flüssigkristallvorrichtung

Country Status (4)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19732381A1 (de)	1997-07-25	1999-01-28	Hoechst Ag	Ferroelektrische Flüssigkristallanzeige mit aktiven Matrix Elementen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0294852A2 (de) *	1987-06-12	1988-12-14	Canon Kabushiki Kaisha	Vorrichtung mit einem ferroelektrischen Flüssigkristall

1991
- 1991-08-21 DE DE69125228T patent/DE69125228T2/de not_active Expired - Fee Related
- 1991-08-21 ES ES91114021T patent/ES2098286T3/es not_active Expired - Lifetime
- 1991-08-21 AT AT91114021T patent/ATE150570T1/de not_active IP Right Cessation
- 1991-08-21 EP EP96102488A patent/EP0717305B1/de not_active Expired - Lifetime
- 1991-08-21 AT AT96102488T patent/ATE227437T1/de not_active IP Right Cessation
- 1991-08-21 DE DE69133146T patent/DE69133146T2/de not_active Expired - Fee Related

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0294852A2 (de) *	1987-06-12	1988-12-14	Canon Kabushiki Kaisha	Vorrichtung mit einem ferroelektrischen Flüssigkristall

Also Published As

Publication number	Publication date
DE69133146D1 (de)	2002-12-12
DE69125228D1 (de)	1997-04-24
ATE227437T1 (de)	2002-11-15
DE69125228T2 (de)	1997-08-28
ES2098286T3 (es)	1997-05-01
ATE150570T1 (de)	1997-04-15
EP0717305A2 (de)	1996-06-19
EP0717305B1 (de)	2002-11-06
DE69133146T2 (de)	2004-02-05

Legal Events

Date	Code	Title	Description
1996-05-03	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1996-11-20	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE
1996-11-20	RHK1	Main classification (correction)	Ipc: G02F 1/1333
1997-06-04	17P	Request for examination filed	Effective date: 19970408
1999-10-20	17Q	First examination report despatched	Effective date: 19990902
2001-11-28	RTI1	Title (correction)	Free format text: LIQUID CRYSTAL APPARATUS
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2002-01-02	RTI1	Title (correction)	Free format text: LIQUID CRYSTAL APPARATUS
2002-02-21	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-02-21	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
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Publication	Publication Date	Title
EP0294852A3 (de)	1991-03-06	Vorrichtung mit einem ferroelektrischen Flüssigkristall
DE3788490D1 (de)	1994-01-27	Flüssigkristallanzeige mit Bildelementen mit Hilfskapazität.
CA2057596A1 (en)	1992-06-14	Waveguide type optical device
ES2078474T3 (es)	1995-12-16	Cristal electrocromo.
CA2049624A1 (en)	1992-02-23	Liquid crystal apparatus
EP0157489A3 (de)	1987-01-14	Feldeffekttransistoren aus amorphem Silicium, ihre Herstellung und ihre Anwendung bei Flüssigkristall-Anzeigetafeln
EP0171599A3 (en)	1988-01-27	Displays and subassemblies having optimized capacitance
EP0695965A3 (de)	1997-01-15	Flüssigkristallvorrichtung
EP0376648A3 (de)	1991-08-21	Flüssigkristallanzeigevorrichtung
GB2090036B (en)	1985-08-21	Liquid crystal display device
EP0390571A3 (de)	1991-07-31	Anzeigeelement mit organischem Dünnschichtfilm
EP0717305A3 (de)	1996-11-20	Flüssigkristallelement und Flüssigkristallvorrichtung
GB2007022A (en)	1979-05-10	A method of polarizing a thermoplastic resin film
EP0324434A3 (de)	1990-09-05	Methode zur Aktivierung einer nichtlinearen optischen Einrichtung mit Elektroden auf zwei seitlichen Flächen eines nichtlinearen Mediums mit dazwischenliegenden Isolationsschichten
GB2020483A (en)	1979-11-14	Improvements in or relating to piezoelectric materials and to apparatus and methods for producing such material
GB2062330B (en)	1983-03-30	Electrochromic display device
JPS6410214A (en)	1989-01-13	Ferroelectric liquid crystal element
JPS644721A (en)	1989-01-09	Active device
JPS6478225A (en)	1989-03-23	Ferroelectric liquid crystal element
JPS6459323A (en)	1989-03-07	Active device
FR2373808A1 (fr)	1978-07-07	Dispositif de filtre optique
FR2431189A1 (fr)	1980-02-08	Procede et dispositif de polarisation de ceramiques piezo-electriques
JPS57148722A (en)	1982-09-14	Liquid crystal display device
JPS6417024A (en)	1989-01-20	Active device
FR2448226A1 (fr)	1980-08-29	Resonateur a cristal, notamment pour l'horlogerie