DE69333414D1 - Flüssigkristallvorrichtungen mit einer Vielzahl von Domänen mit unterschiedlichen Schwellenspannungen zum Schalten von Flüssigkristallen - Google Patents

Flüssigkristallvorrichtungen mit einer Vielzahl von Domänen mit unterschiedlichen Schwellenspannungen zum Schalten von Flüssigkristallen

Info

Publication number
DE69333414D1
DE69333414D1 DE69333414T DE69333414T DE69333414D1 DE 69333414 D1 DE69333414 D1 DE 69333414D1 DE 69333414 T DE69333414 T DE 69333414T DE 69333414 T DE69333414 T DE 69333414T DE 69333414 D1 DE69333414 D1 DE 69333414D1
Authority
DE
Germany
Prior art keywords
domains
threshold voltages
different threshold
liquid crystal
crystal devices
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 - Lifetime
Application number
DE69333414T
Other languages
English (en)
Other versions
DE69333414T2 (de
Inventor
Akio Yasuda
Keiichi Nito
Eriko Matsui
Hidehiko Takanashi
Yang Ying Bao
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69333414D1 publication Critical patent/DE69333414D1/de
Publication of DE69333414T2 publication Critical patent/DE69333414T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/141—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent using ferroelectric liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133734—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by obliquely evaporated films, e.g. Si or SiO2 films
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133796—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers having conducting property
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/30—Gray scale
DE69333414T 1992-10-24 1993-10-22 Flüssigkristallvorrichtung mit einer Mehrzahl von Domänen mit unterschiedlich er Schwellenspannungen zum Schalten von Flüssigkristallen Expired - Lifetime DE69333414T2 (de)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP30923892 1992-10-24
JP30923992 1992-10-24
JP30923892 1992-10-24
JP30923992 1992-10-24
JP34171992 1992-11-26
JP34171992 1992-11-26
JP23897393 1993-08-31
JP23897393 1993-08-31
JP26295193 1993-09-27
JP26295193A JP3456493B2 (ja) 1992-10-24 1993-09-27 液晶素子

Publications (2)

Publication Number Publication Date
DE69333414D1 true DE69333414D1 (de) 2004-03-11
DE69333414T2 DE69333414T2 (de) 2004-12-02

Family

ID=27530008

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69333354T Expired - Lifetime DE69333354T2 (de) 1992-10-24 1993-10-22 Flüssigkristallvorrichtungen mit einer Mehrzahl von Domänen unterschiedlicher Schwellspannungen zum Schalten von Flüssigkristallen
DE69333414T Expired - Lifetime DE69333414T2 (de) 1992-10-24 1993-10-22 Flüssigkristallvorrichtung mit einer Mehrzahl von Domänen mit unterschiedlich er Schwellenspannungen zum Schalten von Flüssigkristallen
DE69327700T Expired - Lifetime DE69327700T2 (de) 1992-10-24 1993-10-22 Ferroelektrische Flüssigkristall-Vorrichtung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69333354T Expired - Lifetime DE69333354T2 (de) 1992-10-24 1993-10-22 Flüssigkristallvorrichtungen mit einer Mehrzahl von Domänen unterschiedlicher Schwellspannungen zum Schalten von Flüssigkristallen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69327700T Expired - Lifetime DE69327700T2 (de) 1992-10-24 1993-10-22 Ferroelektrische Flüssigkristall-Vorrichtung

Country Status (5)

Country Link
US (2) US5654784A (de)
EP (3) EP0831358B1 (de)
JP (1) JP3456493B2 (de)
KR (1) KR100276617B1 (de)
DE (3) DE69333354T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5963288A (en) * 1987-08-20 1999-10-05 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal device having sealant and spacers made from the same material
JPH07152017A (ja) * 1993-11-30 1995-06-16 Sony Corp 液晶素子の駆動方法及びその液晶素子
US5764328A (en) * 1995-07-03 1998-06-09 Citizen Watch Co., Ltd. Liquid crystal device with plural ferroelectric or antiferroelectric layer tilt angles per pixel
JPH0954307A (ja) * 1995-08-18 1997-02-25 Sony Corp 液晶素子の駆動方法
US6118512A (en) * 1995-12-27 2000-09-12 Sharp Kabushiki Kaisha Manufacturing method of a liquid crystal display element
KR100208970B1 (ko) * 1995-12-29 1999-07-15 구자홍 액정셀 및 그의 제조방법
EP0823110A1 (de) * 1996-02-22 1998-02-11 Koninklijke Philips Electronics N.V. Flüssigkristallanzeigevorrichtung
GB9615817D0 (en) * 1996-07-26 1996-09-04 Secr Defence Liquid crystal device with greyscale
GB2320103A (en) * 1996-12-05 1998-06-10 Sharp Kk Liquid crystal devices
US6774966B1 (en) * 1997-06-10 2004-08-10 Lg.Philips Lcd Co., Ltd. Liquid crystal display with wide viewing angle and method for making it
JP3399796B2 (ja) * 1997-08-29 2003-04-21 シャープ株式会社 液晶表示装置
JPH11223813A (ja) * 1998-02-06 1999-08-17 Sony Corp 液晶素子及びその製造方法
US6297865B1 (en) * 1998-03-10 2001-10-02 Sony Corporation Liquid crystal element having polarization moderating properties
GB9811783D0 (en) 1998-06-03 1998-07-29 Sharp Kk Liquid crystal device manufacturing methods
DE19925985A1 (de) * 1999-06-08 2000-12-14 Bosch Gmbh Robert Flüssigkristallanzeige mit umschaltbarem Blickwinkel
JP2001291594A (ja) * 2000-04-07 2001-10-19 Canon Inc 導電性液晶素子
US6525860B1 (en) * 2000-05-18 2003-02-25 Raytheon Company Electronically variable light attenuator
JP4165001B2 (ja) 2000-11-02 2008-10-15 富士ゼロックス株式会社 画像表示媒体、画像表示装置及び画像表示方法
JP3866522B2 (ja) 2001-02-14 2007-01-10 日本電気株式会社 アクティブマトリクス型液晶表示装置及びその製造方法
JP2003050397A (ja) * 2001-06-01 2003-02-21 Citizen Watch Co Ltd 配向膜を備えた基板とその製造方法
US6639637B2 (en) * 2001-12-26 2003-10-28 Eastman Kodak Company Field spreading layer for dispersed liquid crystal coatings
JP4558299B2 (ja) * 2003-10-14 2010-10-06 スタンレー電気株式会社 流体とその流体を用いた表示装置、およびマイクロマシーン
JP4618131B2 (ja) * 2003-11-28 2011-01-26 富士電機ホールディングス株式会社 スイッチング素子
US7764337B2 (en) * 2004-10-28 2010-07-27 Semiconductor Energy Laboratory Co., Ltd Liquid crystal display device and electronic device
JP5426448B2 (ja) * 2010-03-29 2014-02-26 スタンレー電気株式会社 流体とその流体を用いた表示装置、およびマイクロマシーン
CN111164178B (zh) * 2018-03-28 2021-03-16 积水化学工业株式会社 电子材料用组合物、液晶显示元件用密封剂、上下导通材料和液晶显示元件

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734597A (en) * 1968-02-23 1973-05-22 Ncr Co Process for producing a color state in a display device
US3620889A (en) * 1968-06-11 1971-11-16 Vari Light Corp Liquid crystal systems
JPH0723942B2 (ja) * 1985-08-08 1995-03-15 株式会社半導体エネルギ−研究所 液晶装置
US5196954A (en) * 1985-08-08 1993-03-23 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display
US4796980A (en) * 1986-04-02 1989-01-10 Canon Kabushiki Kaisha Ferroelectric liquid crystal optical modulation device with regions within pixels to initiate nucleation and inversion
US4796979A (en) * 1986-04-07 1989-01-10 Canon Kabushiki Kaisha Ferroelectric liquid crystal device having dual laminated alignment films
KR940008530B1 (ko) * 1987-09-18 1994-09-22 가부시끼가이샤 한도 따이에네르기 겐꾸쇼 액정 전기 광학 장치
US4906074A (en) * 1987-09-28 1990-03-06 Semiconductor Energy Laboratory Co., Ltd. FLC liquid crystal electro-optical device having microdomains within pixels
US5078477A (en) * 1988-11-09 1992-01-07 Mitsubishi Gas Chemical Company, Inc. Ferroelectric liquid crystal cell
JPH036526A (ja) * 1989-06-02 1991-01-14 Matsushita Electric Ind Co Ltd 強誘電性液晶ディスプレイ
NL8901481A (nl) * 1989-06-12 1991-01-02 Philips Nv Passieve ferro-elektrisch vloeibaar kristal weergeefinrichting en werkwijze ter vervaardiging daarvan.
JPH03276126A (ja) * 1990-03-27 1991-12-06 Matsushita Electric Ind Co Ltd 強誘電性液晶パネル
JP2814024B2 (ja) * 1990-06-07 1998-10-22 キヤノン株式会社 液晶素子
US5138472A (en) * 1991-02-11 1992-08-11 Raychem Corporation Display having light scattering centers
JPH04258924A (ja) * 1991-02-13 1992-09-14 Canon Inc カイラルスメクチック液晶素子およびその製造方法
US5327272A (en) * 1991-03-27 1994-07-05 Canon Kabushiki Kaisha Optical modulation element
JPH05241138A (ja) * 1991-12-06 1993-09-21 Canon Inc 液晶光学素子
JP3100014B2 (ja) * 1991-12-10 2000-10-16 キヤノン株式会社 強誘電性液晶素子及び該素子の製造方法

Also Published As

Publication number Publication date
EP0831358A2 (de) 1998-03-25
EP0831358A3 (de) 1998-04-08
JPH07128690A (ja) 1995-05-19
DE69333414T2 (de) 2004-12-02
DE69327700T2 (de) 2000-06-21
EP0595219A3 (de) 1995-08-09
EP0595219A2 (de) 1994-05-04
EP0831359A3 (de) 1998-04-08
DE69327700D1 (de) 2000-03-02
EP0595219B1 (de) 2000-01-26
EP0831359A2 (de) 1998-03-25
KR100276617B1 (ko) 2001-01-15
KR940009733A (ko) 1994-05-24
EP0831359B1 (de) 2003-12-10
US6040884A (en) 2000-03-21
DE69333354D1 (de) 2004-01-22
EP0831358B1 (de) 2004-02-04
DE69333354T2 (de) 2004-10-14
US5654784A (en) 1997-08-05
JP3456493B2 (ja) 2003-10-14

Similar Documents

Publication Publication Date Title
DE69333414D1 (de) Flüssigkristallvorrichtungen mit einer Vielzahl von Domänen mit unterschiedlichen Schwellenspannungen zum Schalten von Flüssigkristallen
DE3585566D1 (de) Elektrooptische einrichtung mit ferroelektrischen fluessigkristallen.
DE69328852D1 (de) Elektrooptische Flüssigkristall-Vorrichtung
DE69625261D1 (de) Steuerschaltung für eine Flüssigkristallanzeige mit Driftkompensation der Schwellenspannung
DE69325555D1 (de) Elektrooptisches fluessigkristallsystem
DE59101877D1 (de) Elektrooptisches flüssigkristallschaltelement.
DE69029824T2 (de) Flüssigkristallvorrichtungen unter verwendung eines linearen elektrooptischen effekts
EP0168242A3 (en) Ferro-electric liquid crystal electro-optical device
DE69427628D1 (de) Anzeigevorrichtung mit einem ferroelektrischen Flüssigkristall
DE69424482D1 (de) Polyimid-Lack verwendbar als Flüssigkristallorientierungsschicht
DE69030508T2 (de) Ferroelektrische Flüssigkristallvorrichtung
DE69403040T2 (de) Flüssigkristalle-Vorrichtungen
DE3650066D1 (de) Ferroelektrische Flüssigkristallvorrichtungen.
DK632989A (da) Fremgangsmaade til styring af et ferroelektrisk lcd-display
DE69309836T2 (de) Ferroelektrische Flüssigkristallzusammensetzung
DE3689872D1 (de) Ferroelektrische Flüssigkristallvorrichtungen.
DE69409039T2 (de) Flüssigkristall-vorrichtungen
HK44392A (en) Ferroelectric liquid crystal devices
DE69322880D1 (de) Ferroelektrische flüssigkristallvorrichtung
DE3688874T2 (de) Optische Vorrichtungen mit ferroelektrischen Flüssigkristallen.
KR890010158A (ko) 강유전성 액정 조성물 및 이를 사용하는 광 스위칭 소자
DE69319028T2 (de) Elektrooptische Flüssigkristall-Vorrichtung
DK424089A (da) Ferroelektrisk flydende krystal
DE69303908T2 (de) Ansteuerung einer matrix-fluessigkristallzelle
EP0247806A3 (en) A ferroelectric liquid crystal electro-optical device

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)