FR2257917B1 - - Google Patents
Info
- Publication number
- FR2257917B1 FR2257917B1 FR7500633A FR7500633A FR2257917B1 FR 2257917 B1 FR2257917 B1 FR 2257917B1 FR 7500633 A FR7500633 A FR 7500633A FR 7500633 A FR7500633 A FR 7500633A FR 2257917 B1 FR2257917 B1 FR 2257917B1
- Authority
- FR
- France
- 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
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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
-
- 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
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
- C09K19/2021—Compounds containing at least one asymmetric carbon atom
-
- 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
- G02F1/1392—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 a field-induced sign-reversal of the dielectric anisotropy
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43271774A | 1974-01-11 | 1974-01-11 | |
US05/478,990 US4009934A (en) | 1974-01-11 | 1974-06-28 | Electro-optic display devices and methods |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2257917A1 FR2257917A1 (US06252093-20010626-C00008.png) | 1975-08-08 |
FR2257917B1 true FR2257917B1 (US06252093-20010626-C00008.png) | 1976-12-31 |
Family
ID=27029614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7500633A Expired FR2257917B1 (US06252093-20010626-C00008.png) | 1974-01-11 | 1975-01-10 |
Country Status (7)
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173545A (en) * | 1976-04-06 | 1979-11-06 | Thomson-Csf | Liquid crystal with high negative dielectric anisotropy and mixtures of the same with nematic liquid crystals for improving dynamic scattering in electro-optic devices |
FR2349849A1 (fr) * | 1976-04-30 | 1977-11-25 | Commissariat Energie Atomique | Dispositif d'affichage analogique a cristal liquide |
JPS52142683A (en) * | 1976-05-25 | 1977-11-28 | Citizen Watch Co Ltd | Liquid crystal composite |
US4106853A (en) * | 1976-07-28 | 1978-08-15 | Hughes Aircraft Company | Method and apparatus for increasing contrast ratio of the stored image in a storage mode light valve |
GB1587819A (en) * | 1976-08-13 | 1981-04-08 | Secr Defence | Aromatic diester liquid crystal materials |
US4235736A (en) * | 1977-02-11 | 1980-11-25 | Thomson-Csf | Diphenylic esters exhibiting mesomorphic phases |
US4120567A (en) * | 1977-02-11 | 1978-10-17 | Rca Corporation | Electro-optic device |
CH626914A5 (US06252093-20010626-C00008.png) * | 1977-03-08 | 1981-12-15 | Bbc Brown Boveri & Cie | |
NL169647B (nl) * | 1977-10-27 | 1982-03-01 | Philips Nv | Weergeefinrichting met een vloeibaar kristal. |
GB1569687A (en) * | 1977-11-10 | 1980-06-18 | Standard Telephones Cables Ltd | Smectic display cell |
US4291948A (en) * | 1977-11-10 | 1981-09-29 | International Standard Electric Corporation | Liquid crystal display incorporating positive and negative smectic material |
GB1569686A (en) * | 1977-11-10 | 1980-06-18 | Standard Telephones Cables Ltd | Smectic display cell |
GB2010560A (en) * | 1977-11-22 | 1979-06-27 | Suwa Seikosha Kk | Liquid crystal display arrangements |
GB2013014B (en) * | 1977-12-27 | 1982-06-30 | Suwa Seikosha Kk | Liquid crystal display device |
FR2419966A1 (fr) * | 1978-03-17 | 1979-10-12 | Thomson Csf | Cristal liquide de type diester presentant une phase smectique, a basse frequence d'isotropie dielectrique, et dispositif de visualisation utilisant ce cristal |
JPS54137361A (en) * | 1978-04-18 | 1979-10-25 | Nec Corp | Color display device of liquid crystal |
AU531191B2 (en) * | 1979-01-24 | 1983-08-11 | National Research Development Corp. | Liquid crystal colour display |
DE2967129D1 (en) * | 1979-05-28 | 1984-08-30 | Merck Patent Gmbh | Liquid-crystal compositions |
DE2933563A1 (de) * | 1979-07-18 | 1981-02-05 | Bbc Brown Boveri & Cie | Anisotrope verbindungen mit negativer dk-anisotropie |
FR2461697A1 (fr) * | 1979-07-20 | 1981-02-06 | Suwa Seikosha Kk | 3-cyano-4-alcoxybenzoate de 2-chloro-4-alcoylphenyle et son utilisation dans une composition de cristaux liquides |
JPS5672419A (en) * | 1979-11-19 | 1981-06-16 | Matsushita Electric Ind Co Ltd | Polarization controller |
DE2949080A1 (de) * | 1979-12-06 | 1981-06-11 | Merck Patent Gmbh, 6100 Darmstadt | Naphthalinderivate, diese enthaltende dielektrika und elektrooptisches anzeigeelement |
JPS6040608B2 (ja) * | 1980-01-08 | 1985-09-11 | セイコーエプソン株式会社 | 液晶ライトバルブ |
US4386836A (en) * | 1979-12-28 | 1983-06-07 | Kabushiki Kaisha Suwa Seikosha | Electro-photographic printer |
NL8001556A (nl) * | 1980-03-17 | 1981-10-16 | Philips Nv | Weergeefinrichting met vloeibaar kristal. |
DE3140078A1 (de) * | 1980-10-08 | 1982-04-22 | Kabushiki Kaisha Suwa Seikosha, Tokyo | Optische fluessigkristalleinrichtung und drucker, der eine solche optische einrichtung als lichtventil benutzt |
DE3164750D1 (en) * | 1980-10-13 | 1984-08-16 | Secr Defence Brit | Liquid crystal devices |
US4406814A (en) * | 1981-04-10 | 1983-09-27 | Eaton Corporation | Liquid crystalline materials and optical displays utilizing same |
JPS57171378A (en) * | 1981-04-15 | 1982-10-21 | Suwa Seikosha Kk | Liquid crystal optical device |
DE3221462A1 (de) * | 1981-06-18 | 1983-01-05 | F. Hoffmann-La Roche & Co AG, 4002 Basel | Fluessigkristallines gemisch |
JPS5817414A (ja) * | 1981-07-24 | 1983-02-01 | Seiko Epson Corp | 液晶光学装置 |
US4810063A (en) * | 1981-09-16 | 1989-03-07 | Manchester R & D Partnership | Enhanced scattering voltage sensitive encapsulated liquid crystal with light directing and interference layer features |
US4606611A (en) * | 1981-09-16 | 1986-08-19 | Manchester R & D Partnership | Enhanced scattering in voltage sensitive encapsulated liquid crystal |
GB2114994B (en) * | 1982-02-18 | 1984-10-10 | Suwa Seikosha Kk | Liquid crystal compositions |
US4472026A (en) * | 1982-05-06 | 1984-09-18 | At&T Bell Laboratories | Electrothermal matrix addressable liquid crystal display |
JPS5973555A (ja) * | 1982-10-20 | 1984-04-25 | Seiko Epson Corp | エステル−アゾキシ化合物 |
JPS6041330B2 (ja) * | 1982-11-18 | 1985-09-17 | セイコーエプソン株式会社 | 液晶ライトバルブ |
US4591233A (en) * | 1983-03-21 | 1986-05-27 | Manchester R & D Partnership | Enhanced scattering in voltage sensitive encapsulated liquid crystal with spaced apart absorber |
EP0123981A3 (de) * | 1983-04-29 | 1986-12-03 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | Flüssigkristallzelle |
JPS60117215A (ja) * | 1983-11-29 | 1985-06-24 | Sharp Corp | 液晶表示装置 |
FR2557719B1 (fr) * | 1984-01-03 | 1986-04-11 | Thomson Csf | Dispositif de visualisation a memoire utilisant un materiau ferroelectrique |
US4595259A (en) * | 1984-01-19 | 1986-06-17 | Xerox Corporation | Transient state liquid crystal image bar for electrophotographic printers |
FR2561657B1 (fr) * | 1984-03-20 | 1988-02-19 | Thomson Csf | Procede d'obtention d'un cristal liquide smectique c chiral ferroelectrique cristal liquide obtenu par ce procede et dispositif de visualisation utilisant ce cristal liquide |
DE3425584A1 (de) * | 1984-07-11 | 1986-01-16 | Merck Patent Gmbh, 6100 Darmstadt | Optisches system mit einer fluessigkristallzelle, verfahren zu seinem betrieb und seine verwendung |
US4688899A (en) * | 1984-07-27 | 1987-08-25 | Casio Computer Co., Ltd. | Dual-frequency, dielectric anisotropy liquid crystal display |
GB2163564A (en) * | 1984-08-25 | 1986-02-26 | Stc Plc | Thermal image sensor |
US4732456A (en) * | 1984-08-28 | 1988-03-22 | Taliq Corporation | Scattering display for contrast enhancement including target |
US4832458A (en) * | 1984-08-28 | 1989-05-23 | Talig Corporation | Display for contrast enhancement |
US4634225A (en) * | 1984-12-24 | 1987-01-06 | General Electric Co. | Transflective liquid crystal display with integral heating unit and temperature sensor |
GB8501509D0 (en) * | 1985-01-22 | 1985-02-20 | Secr Defence | Esters |
US5142389A (en) * | 1985-03-01 | 1992-08-25 | Manchester R & D Limited Partnership | Liquid crystal color display and method |
US4878741A (en) * | 1986-09-10 | 1989-11-07 | Manchester R & D Partnership | Liquid crystal color display and method |
US5345322A (en) * | 1985-03-01 | 1994-09-06 | Manchester R&D Limited Partnership | Complementary color liquid crystal display |
US5168380A (en) * | 1985-03-01 | 1992-12-01 | Manchester R & D Partnership An Ohio Limited Partnership | Multiple containment mediums of operationally nematic liquid crystal responsive to a prescribed input |
US4953953A (en) * | 1985-03-01 | 1990-09-04 | Manchester R & D Partnership | Complementary color liquid display |
US5208686A (en) * | 1985-03-01 | 1993-05-04 | Manchester R&D Partnership | Liquid crystal color display and method |
DE3650628T2 (de) * | 1985-03-01 | 1997-09-25 | Manchester R & D Partnership | Flüssigkristallfarbanzeigevorrichtung und verfahren |
JP2767790B2 (ja) * | 1985-05-07 | 1998-06-18 | セイコーエプソン株式会社 | 液晶電気光学装置の駆動方法 |
CA1258512A (en) * | 1985-10-28 | 1989-08-15 | John W. Goodby | Ferroelectric liquid crystal optical devices |
US5279764A (en) * | 1988-03-10 | 1994-01-18 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Dihalogenobenzene derivatives |
US4897216A (en) * | 1988-03-10 | 1990-01-30 | Merck Patent Gesellschaft Mit Beschrankter Haftung | 2,3-difluorophenol derivatives |
JP3021477B2 (ja) * | 1989-08-28 | 2000-03-15 | 昭和シェル石油株式会社 | 三安定状態で駆動する光学素子用液晶 |
US6552850B1 (en) * | 1998-06-30 | 2003-04-22 | Citicorp Development Center, Inc. | Device, method, and system of display for controlled viewing |
US6320563B1 (en) * | 1999-01-21 | 2001-11-20 | Kent State University | Dual frequency cholesteric display and drive scheme |
JP4027939B2 (ja) * | 2004-01-15 | 2007-12-26 | シャープ株式会社 | 表示素子および表示装置 |
US7327433B2 (en) * | 2004-01-15 | 2008-02-05 | Sharp Kabushiki Kaisha | Display element, display device, and manufacturing method of display element |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731986A (en) * | 1971-04-22 | 1973-05-08 | Int Liquid Xtal Co | Display devices utilizing liquid crystal light modulation |
US3857629A (en) * | 1973-05-14 | 1974-12-31 | Ibm | Fast turn-off nematic liquid optical devices |
-
1974
- 1974-06-28 US US05/478,990 patent/US4009934A/en not_active Expired - Lifetime
- 1974-12-30 CA CA217,071A patent/CA1099809A/en not_active Expired
-
1975
- 1975-01-10 DE DE19752500838 patent/DE2500838A1/de active Pending
- 1975-01-10 SE SE7500251A patent/SE7500251L/xx unknown
- 1975-01-10 NL NL7500345A patent/NL7500345A/xx unknown
- 1975-01-10 FR FR7500633A patent/FR2257917B1/fr not_active Expired
- 1975-01-11 JP JP50005880A patent/JPS50104043A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS50104043A (US06252093-20010626-C00008.png) | 1975-08-16 |
NL7500345A (US06252093-20010626-C00008.png) | 1975-07-15 |
FR2257917A1 (US06252093-20010626-C00008.png) | 1975-08-08 |
US4009934A (en) | 1977-03-01 |
SE7500251L (US06252093-20010626-C00008.png) | 1975-07-14 |
DE2500838A1 (de) | 1975-07-17 |
CA1099809A (en) | 1981-04-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |