HK44096A - Ferroelectric liquid-crystal cell - Google Patents
Ferroelectric liquid-crystal cellInfo
- Publication number
- HK44096A HK44096A HK44096A HK44096A HK44096A HK 44096 A HK44096 A HK 44096A HK 44096 A HK44096 A HK 44096A HK 44096 A HK44096 A HK 44096A HK 44096 A HK44096 A HK 44096A
- Authority
- HK
- Hong Kong
- Prior art keywords
- crystal cell
- ferroelectric liquid
- ferroelectric
- liquid
- crystal
- Prior art date
Links
Classifications
-
- 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
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K19/126—Compounds containing at least one asymmetric carbon atom
-
- 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
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
- C09K19/345—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
- C09K19/3458—Uncondensed pyrimidines
-
- 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
-
- 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
-
- 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
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
- C09K2019/123—Ph-Ph-Ph
Landscapes
- 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)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH360787 | 1987-09-18 | ||
CH364087 | 1987-09-21 | ||
CH372287 | 1987-09-25 | ||
CH155588 | 1988-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK44096A true HK44096A (en) | 1996-03-22 |
Family
ID=27428219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK44096A HK44096A (en) | 1987-09-18 | 1996-03-14 | Ferroelectric liquid-crystal cell |
Country Status (8)
Country | Link |
---|---|
US (2) | US6671028B1 (ja) |
EP (1) | EP0309774B1 (ja) |
JP (1) | JP2532606B2 (ja) |
KR (1) | KR970000352B1 (ja) |
CN (1) | CN1032182A (ja) |
DD (1) | DD299989A5 (ja) |
DE (1) | DE3876059D1 (ja) |
HK (1) | HK44096A (ja) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5242619A (en) * | 1988-04-27 | 1993-09-07 | Hoffmann-La Roche Inc. | Liquid crystalline mixtures having a chiral tilted smectic phase |
US5486310A (en) * | 1988-04-27 | 1996-01-23 | Hoffmann-La Roche Inc. | Liquid crystalline mixtures having a chiral tilted smectic phase |
RU2030390C1 (ru) * | 1988-04-27 | 1995-03-10 | Московское научно-производственное объединение "НИОПИК" | Оптически активные сложные диэфиры ароматических трехкольчатых кислот в качестве хиральных компонентов для жидкокристаллических сегнетоэлектриков |
KR900018725A (ko) * | 1988-05-12 | 1990-12-22 | 야마자끼 순페이 | 액정 전자 광학 장치 |
DE58908399D1 (de) * | 1988-08-12 | 1994-10-27 | Hoffmann La Roche | Verfahren und Vorrichtung zur beschleunigten Ansteuerung von Flüssigkristallzellen des DHF-Typs. |
US5188815A (en) * | 1988-08-31 | 1993-02-23 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Thermochromic mixtures |
EP0402110B1 (en) * | 1989-06-07 | 1994-12-14 | Wako Pure Chemical Industries Ltd | Optical active compounds and liquid crystal compositions containing such compounds |
US5231528A (en) * | 1989-06-23 | 1993-07-27 | Hoechst Aktiengesellschaft | Ferroelectric liquid crystal components having high spontaneous polarization and low helical pitch |
DE3920625A1 (de) * | 1989-06-23 | 1991-01-03 | Hoechst Ag | Ferroelektrische fluessigkristallelemente mit hoher spontaner polarisation und geringer helixganghoehe |
US5327273A (en) * | 1989-06-29 | 1994-07-05 | Hoffmann-La Roche Inc. | Bistable ferroelectric liquid crystal display cell |
DE59009675D1 (de) * | 1989-06-29 | 1995-10-26 | Hoffmann La Roche | Bistabile ferroelektrische Flüssigkristallanzeige. |
US5132826A (en) * | 1989-10-30 | 1992-07-21 | The University Of Colorado Foundation, Inc. | Ferroelectric liquid crystal tunable filters and color generation |
US5381253A (en) * | 1991-11-14 | 1995-01-10 | Board Of Regents Of University Of Colorado | Chiral smectic liquid crystal optical modulators having variable retardation |
US5539555A (en) * | 1990-07-20 | 1996-07-23 | Displaytech, Inc. | High contrast distorted helex effect electro-optic devices and tight ferroelectric pitch ferroelectric liquid crystal compositions useful therein |
US5552912A (en) * | 1991-11-14 | 1996-09-03 | Board Of Regents Of The University Of Colorado | Chiral smectic liquid crystal optical modulators |
KR100254648B1 (ko) * | 1994-01-26 | 2000-05-01 | 보러 롤란드 | 디에이치에프형 액정 셀을 위한 기동 방법 |
US5818548A (en) * | 1995-11-07 | 1998-10-06 | Rolic Ag | Ferroelectric liquid crystal display in which the switching angle does not exceed ± 22.5° |
SG50846A1 (en) * | 1996-06-12 | 1998-07-20 | Rolic Ag | Liquid crystalline display switching or image processing apparatus |
EP0844293B1 (de) * | 1996-11-21 | 2002-01-16 | Rolic AG | Bistabile ferroelektrische Flüssigkristallzelle |
JP3144329B2 (ja) * | 1996-12-25 | 2001-03-12 | 日本電気株式会社 | 液晶表示素子 |
US6606134B1 (en) | 1997-03-11 | 2003-08-12 | Rolic Ag | Reflective ferroelectric liquid crystal display and projection system |
DE19852890A1 (de) * | 1998-11-17 | 2000-05-18 | Deutsche Telekom Ag | Elektrooptischer Lichtmodulator |
KR100320102B1 (ko) * | 1998-11-21 | 2002-04-22 | 김원대 | 수직배향된나선변형강유전성액정표시장치 |
JP2001019960A (ja) | 1999-07-08 | 2001-01-23 | Nec Corp | スメクティック液晶材料及び液晶光学素子 |
DE19941079A1 (de) * | 1999-08-30 | 2001-03-01 | Deutsche Telekom Ag | Vorrichtung und Verfahren zum temperaturunabhängigen Betrieb von elektrooptischen Schaltern auf der Gundlage ferroelektrischer Flüssigkeitskristalle mit deformierter Helix |
KR20020079442A (ko) | 2001-04-13 | 2002-10-19 | 미츠비시 가스 가가쿠 가부시키가이샤 | 광학 활성화합물 및 그것을 함유하는 액정조성물 |
KR20040010703A (ko) * | 2001-06-13 | 2004-01-31 | 메르크 파텐트 게엠베하 | 유체 결정성 매질 및 고비틀림 액정 표시 소자 |
US6805921B2 (en) | 2001-08-09 | 2004-10-19 | Mitsubishi Gas Chemical Co., Inc. | Optically active compound and nematic liquid crystal composition containing the compound |
US7108896B2 (en) * | 2002-06-28 | 2006-09-19 | Dainippon Ink And Chemicals, Inc. | Method of increasing helical twisting power, optically active compound, liquid crystal compostion containing the same, and liquid crystal display device |
JP2004101773A (ja) * | 2002-09-06 | 2004-04-02 | Sharp Corp | 液晶表示装置 |
GB2398130A (en) * | 2003-02-05 | 2004-08-11 | Ocuity Ltd | Switchable active lens for display apparatus |
CN1971346A (zh) | 2005-11-23 | 2007-05-30 | 鸿富锦精密工业(深圳)有限公司 | 液晶快门装置 |
TWI443180B (zh) * | 2010-12-23 | 2014-07-01 | Ind Tech Res Inst | 對掌性雙萘基化合物 |
US20140327862A1 (en) * | 2011-11-15 | 2014-11-06 | Dic Corporation | Ferroelectric liquid crystal composition and ferroelectric liquid crystal display device |
TWI490616B (zh) * | 2011-12-02 | 2015-07-01 | 群創光電股份有限公司 | 液晶顯示裝置 |
RU2503984C1 (ru) * | 2012-05-30 | 2014-01-10 | Игорь Николаевич Компанец | Сегнетоэлектрическая жидкокристаллическая дисплейная ячейка |
WO2013183684A1 (ja) | 2012-06-06 | 2013-12-12 | Dic株式会社 | 液晶光変調素子 |
US10816855B2 (en) | 2015-10-29 | 2020-10-27 | The Hong Kong University Of Science And Technology | Composite photoalignment layer |
US12019345B2 (en) * | 2020-09-21 | 2024-06-25 | The Hong Kong University Of Science And Technology | High-contrast ferroelectric liquid crystal cell |
CN113867063B (zh) * | 2021-10-28 | 2022-12-16 | 华南理工大学 | 一种铁电螺旋液晶材料及其实现二次谐波增强的方法 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
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CH567275A5 (ja) * | 1973-12-21 | 1975-09-30 | Bbc Brown Boveri & Cie | |
US4813767A (en) | 1980-01-08 | 1989-03-21 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
JPS57170976A (en) * | 1981-04-15 | 1982-10-21 | Chisso Corp | Nematic liquid crystal composition |
JPS5846040A (ja) * | 1981-09-11 | 1983-03-17 | Chisso Corp | 光学活性液晶添加物 |
JPS58173718A (ja) * | 1982-04-07 | 1983-10-12 | Hitachi Ltd | 液晶光変調素子およびその製造方法 |
JPS5977401A (ja) * | 1982-09-22 | 1984-05-02 | Nitto Electric Ind Co Ltd | 偏光板 |
JPS59157056A (ja) * | 1983-02-26 | 1984-09-06 | Chisso Corp | 光学活性アルコ−ルのエステル |
JPS6060625A (ja) * | 1983-09-13 | 1985-04-08 | Seiko Instr & Electronics Ltd | 光変換素子 |
US4715688A (en) * | 1984-07-04 | 1987-12-29 | Seiko Instruments Inc. | Ferroelectric liquid crystal display device having an A.C. holding voltage |
FR2557719B1 (fr) | 1984-01-03 | 1986-04-11 | Thomson Csf | Dispositif de visualisation a memoire utilisant un materiau ferroelectrique |
JPS61241724A (ja) * | 1985-04-19 | 1986-10-28 | Victor Co Of Japan Ltd | 液晶表示素子 |
GB8520715D0 (en) | 1985-08-19 | 1985-09-25 | Secr Defence | Secondary alcohol derivatives |
SE8504762D0 (sv) | 1985-10-14 | 1985-10-14 | Sven Torbjorn Lagerwall | Ferroelectric liquid crystal devices |
US4818510A (en) * | 1985-10-21 | 1989-04-04 | Quartz Technology, Inc. | Modified close fraction batch process for purification of SiO2 |
JPS62160420A (ja) * | 1986-01-08 | 1987-07-16 | Matsushita Electric Ind Co Ltd | 液晶素子 |
JPS62159118A (ja) * | 1986-01-08 | 1987-07-15 | Hitachi Ltd | メモリ−性強誘電性液晶素子 |
GB8608115D0 (en) | 1986-04-03 | 1986-05-08 | Secr Defence | Smectic liquid crystal devices |
DE3718174A1 (de) * | 1987-05-29 | 1988-12-15 | Hoechst Ag | Verwendung von optisch aktiven oxiran-2-carbonsaeureestern als dotierstoffe in fluessigkristallmischungen, diese enthaltende fluessigkristallmischungen und neue optisch aktive oxiran-2-carbonsaeureester |
GB8614838D0 (en) | 1986-06-18 | 1986-07-23 | Gen Electric Co Plc | Liquid crystal devices |
GB8616165D0 (en) | 1986-07-02 | 1986-08-06 | Stc Plc | Liquid crystal cell |
GB8627107D0 (en) * | 1986-11-13 | 1986-12-10 | Secr Defence | Ferroelectric smectic liquid crystal mixtures |
JPS63137983A (ja) * | 1986-11-28 | 1988-06-09 | Chisso Corp | ゲストホスト型表示素子用強誘電性液晶混合物 |
US4917475A (en) * | 1987-03-06 | 1990-04-17 | At&T Bell Laboratories | Flexoelectric liquid crystal device |
EP0283916B1 (en) | 1987-03-20 | 1993-12-29 | Hitachi, Ltd. | Liquid crystal light-modulating device imparted with memory effect and display unit utilizing same |
ATE98381T1 (de) * | 1987-04-07 | 1993-12-15 | Hoechst Ag | Verwendung von verbindungen oder gemischen von verbindungen, die eine chirale, orthogonale, hoeher geordnete smektische phase aufweisen, im bereich dieser phase als schalt- oder anzeigemedium. |
JPH01302226A (ja) * | 1988-05-30 | 1989-12-06 | Alps Electric Co Ltd | 強誘電液晶素子 |
US5381253A (en) * | 1991-11-14 | 1995-01-10 | Board Of Regents Of University Of Colorado | Chiral smectic liquid crystal optical modulators having variable retardation |
DE59209855D1 (de) * | 1991-11-08 | 2000-09-07 | Rolic Ag Zug | Fettsäureester, welche einen Pyrimidinring enthalten als Komponenten flüssigkristalliner Gemische |
-
1988
- 1988-09-06 DE DE8888114497T patent/DE3876059D1/de not_active Expired - Lifetime
- 1988-09-06 EP EP88114497A patent/EP0309774B1/de not_active Expired - Lifetime
- 1988-09-15 KR KR88011890A patent/KR970000352B1/ko not_active IP Right Cessation
- 1988-09-16 DD DD339037A patent/DD299989A5/de unknown
- 1988-09-16 JP JP63232121A patent/JP2532606B2/ja not_active Expired - Fee Related
- 1988-09-17 CN CN88106741.5A patent/CN1032182A/zh active Pending
-
1994
- 1994-11-17 US US08/340,816 patent/US6671028B1/en not_active Expired - Fee Related
-
1996
- 1996-03-14 HK HK44096A patent/HK44096A/xx not_active IP Right Cessation
-
1997
- 1997-05-23 US US08/862,858 patent/US5770109A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR970000352B1 (en) | 1997-01-08 |
JP2532606B2 (ja) | 1996-09-11 |
JPH01152430A (ja) | 1989-06-14 |
DE3876059D1 (de) | 1992-12-24 |
DD299989A5 (de) | 1992-05-14 |
CN1032182A (zh) | 1989-04-05 |
US5770109A (en) | 1998-06-23 |
EP0309774A2 (de) | 1989-04-05 |
US6671028B1 (en) | 2003-12-30 |
EP0309774B1 (de) | 1992-11-19 |
EP0309774A3 (en) | 1989-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |