KR940005976A - 강유전성 액정 혼합물 및 이를 사용한 디스플레이 - Google Patents

강유전성 액정 혼합물 및 이를 사용한 디스플레이 Download PDF

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Publication number
KR940005976A
KR940005976A KR1019930006605A KR930006605A KR940005976A KR 940005976 A KR940005976 A KR 940005976A KR 1019930006605 A KR1019930006605 A KR 1019930006605A KR 930006605 A KR930006605 A KR 930006605A KR 940005976 A KR940005976 A KR 940005976A
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South Korea
Prior art keywords
liquid crystal
ferroelectric liquid
crystal mixture
lipophilic
display device
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KR1019930006605A
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English (en)
Inventor
다카마사 하라다
에숴 클라우스
일리안 게르하르트
칼트바이첼 안케
뢰쉬 노르베르트
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벡커, 바인
훽스트 아크티엔게젤샤프트
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Publication of KR940005976A publication Critical patent/KR940005976A/ko

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    • 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
    • G02F1/1416—Details of the smectic layer structure, e.g. bookshelf, chevron, C1 and C2
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
    • C09K19/0225—Ferroelectric
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/582—Electrically active dopants, e.g. charge transfer agents
    • C09K19/584—Electrically active dopants, e.g. charge transfer agents having a condensed ring system; macrocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/586—Optically active dopants; chiral dopants
    • C09K19/588—Heterocyclic compounds

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Substances (AREA)
  • Liquid Crystal (AREA)

Abstract

본 발명은 셀 두께가 1 내지 10μm이고, 강유전성 액정 혼합물〔여기서, 당해 혼합물은 자발 분극 Ps가 20nC·㎝-2보다 크고 공유의 나선형 피치가 셀 두께의 1/2미만이며, 이온성 불순물을 제거시키기 위한 친유화, 친유성 또는 양친매성 화합물을 포함한다〕, 전극 및 정렬 층(들)을 포함하는 전기 광학적 디스플레이 장치에 관한 것이다.
본 발명에 따르는 강유전성 액정 조성물을 사용하면 표면 메모리 효과가 상당히 감소되고 디스플레이 콘트라스트가 상당히 향상된다.

Description

강유전성 액정 혼합물 및 이를 사용한 디스플레이
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (6)

  1. 자발분극 Ps가 20nC·㎝-2보다 크고 공유의 나선형 피치가 셀 두께의 1/2 미만이며, 하나 이상의 친유화, 친유성 및/또는 양친매성 화합물을 포함하는 강유전성 액정 혼합물.
  2. 제1항에 따르는 강유전성 액정 혼합물을 포함하는 디스플레이 장치.
  3. 강유전성 액정 층의 두께가 1 내지 10μm이고, 자발 분극 Ps가 20nC·㎝-2보다 크고 고유의 나선형 피치가 셀 두께의 1/2미만이며, 하나 이상의 친유화, 친유성 및/또는 양친매성 화합물을 포함하는 강유전성 액정 혼합물, 전극 및 정렬 층(들)을 포함하는 전기 광학적 디스플레이 장치.
  4. 제3항에 있어서, 강유전성 액정 혼합물의 스멕틱 층의 구조가 북쉘프 기하(bookshelf geometry) 또는 쿼시-북쉘프 기하(quasi-bookshelf geometry)인 디스플레이 장치.
  5. 제4항에 있어서, 북쉘프 기하 또는 쿼시-북쉘프 기하가 전기장 처리에 의해 형성된 디스플레이 장치.
  6. 제4항에 있어서, 북쉘프 기하 또는 쿼시-북쉘프 기하가 10°미만의 경사 각을 갖는 디스플레이 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930006605A 1992-04-20 1993-04-20 강유전성 액정 혼합물 및 이를 사용한 디스플레이 KR940005976A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4144734A JPH05297375A (ja) 1992-04-20 1992-04-20 強誘電性液晶混合物およびこれを用いたディスプレイ素子
JP92-144,734 1992-04-20

Publications (1)

Publication Number Publication Date
KR940005976A true KR940005976A (ko) 1994-03-22

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ID=15369106

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930006605A KR940005976A (ko) 1992-04-20 1993-04-20 강유전성 액정 혼합물 및 이를 사용한 디스플레이

Country Status (4)

Country Link
US (1) US5333075A (ko)
EP (1) EP0567854A1 (ko)
JP (1) JPH05297375A (ko)
KR (1) KR940005976A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100516763B1 (ko) * 1996-11-21 2005-12-07 롤리크 아게 쌍안정의강유전성액정전지

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702639A (en) * 1989-12-01 1997-12-30 Hoechst Aktiengesellschaft Use of complex ligands for ions in ferroelectric liquid-crystal mixtures
US5629788A (en) * 1992-12-29 1997-05-13 Canon Kabushiki Kaisha Liquid crystal device providing tilt angle inclination angle and ps satisfying relationships at 55 degrees
GB2337608B (en) * 1998-05-16 2003-01-15 Sharp Kk Reduction of ionic memory effect in ferroelectric liquid crystal material
EP1607933B1 (en) * 1999-11-12 2007-05-30 Sony Corporation Light modulation apparatus, image pickup apparatus, and drive methods for exposure time control thereof
US6824707B2 (en) 2001-10-23 2004-11-30 Clariant International Ltd. Active matrix liquid crystal device and smectic liquid crystal mixture
EP1306419A1 (en) * 2001-10-23 2003-05-02 Clariant International Ltd. Active matrix liquid crystal device and smectic liquid crystal mixture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135678A (en) * 1988-10-05 1992-08-04 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Liquid crystal device
US5019451A (en) * 1989-04-27 1991-05-28 Edison Polymer Innovation Corp. Non-centrosymmetric, multi-layer Langmuir-Blodgett films
DE3920625A1 (de) * 1989-06-23 1991-01-03 Hoechst Ag Ferroelektrische fluessigkristallelemente mit hoher spontaner polarisation und geringer helixganghoehe
AU640440B2 (en) * 1989-12-01 1993-08-26 Hoechst Aktiengesellschaft Use of complex ligands for ions in ferroelectric liquid crystal mixtures
DE4011804A1 (de) * 1990-04-12 1991-10-24 Hoechst Ag Verwendung von makrocyclischen verbindungen als komponente fuer ferroelektrische fluessigkristallmischungen
DE4011805A1 (de) * 1990-04-12 1991-10-17 Hoechst Ag Verfahren zur herstellung einer schockstabilen fluessigkristall-schalt- und -anzeigevorrichtung
JPH04218018A (ja) * 1990-06-14 1992-08-07 Hoechst Japan Ltd 液晶セルの製造法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100516763B1 (ko) * 1996-11-21 2005-12-07 롤리크 아게 쌍안정의강유전성액정전지

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Publication number Publication date
US5333075A (en) 1994-07-26
JPH05297375A (ja) 1993-11-12
EP0567854A1 (en) 1993-11-03

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