FR2350622A1 - Cellule de cristaux liquides a l'etat cholesterique - Google Patents

Cellule de cristaux liquides a l'etat cholesterique

Info

Publication number
FR2350622A1
FR2350622A1 FR7713349A FR7713349A FR2350622A1 FR 2350622 A1 FR2350622 A1 FR 2350622A1 FR 7713349 A FR7713349 A FR 7713349A FR 7713349 A FR7713349 A FR 7713349A FR 2350622 A1 FR2350622 A1 FR 2350622A1
Authority
FR
France
Prior art keywords
cell
liquid crystals
cholesteric state
cholesteric
state
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.)
Granted
Application number
FR7713349A
Other languages
English (en)
Other versions
FR2350622B1 (fr
Inventor
Derek Hubert Mash
Hubert Mash William Alden Crossland Et Joseph Hourigan Morrissy Derek
William Alden Crossland
Joseph Hourigan Morrissy
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries 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.)
Filing date
Publication date
Application filed by Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of FR2350622A1 publication Critical patent/FR2350622A1/fr
Application granted granted Critical
Publication of FR2350622B1 publication Critical patent/FR2350622B1/fr
Granted 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
    • G02F1/1393—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 the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • 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
    • G02F1/1396—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 the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133631—Birefringent elements, e.g. for optical compensation with a spatial distribution of the retardation value
    • 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
    • G02F1/13787—Hybrid-alignment cells
FR7713349A 1976-05-04 1977-05-03 Cellule de cristaux liquides a l'etat cholesterique Granted FR2350622A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18155/76A GB1571496A (en) 1976-05-04 1976-05-04 Cholesteric liquid crystal cells

Publications (2)

Publication Number Publication Date
FR2350622A1 true FR2350622A1 (fr) 1977-12-02
FR2350622B1 FR2350622B1 (fr) 1982-12-10

Family

ID=10107587

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713349A Granted FR2350622A1 (fr) 1976-05-04 1977-05-03 Cellule de cristaux liquides a l'etat cholesterique

Country Status (3)

Country Link
US (1) US4114990A (fr)
FR (1) FR2350622A1 (fr)
GB (1) GB1571496A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546324A1 (fr) * 1983-05-17 1984-11-23 Thomson Csf Dispositif de visualisation a memoire entretenue
EP0198716A2 (fr) * 1985-04-17 1986-10-22 Laakmann Electro-Optics Inc. Atténuation variable d'un faisceau laser

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306189A (en) * 1979-08-27 1981-12-15 Rheem Manufacturing Company Anode depletion detector
JPS5654422A (en) * 1979-10-09 1981-05-14 Canon Inc Liquid crystal display device for camera
US4380372A (en) * 1980-08-20 1983-04-19 Kabushiki Kaisha Daini Seikosha Phase transition mode liquid crystal display device
FR2526177A1 (fr) * 1982-04-28 1983-11-04 Centre Nat Rech Scient Perfectionnements aux cellules optiques utilisant des cristaux liquides
IT1172826B (it) * 1983-04-20 1987-06-18 Consiglio Nazionale Ricerche Dispositivo a cristalli liquidi per la rotazione continua della polarizzazione selettiva di luce monocromatica
GB8318863D0 (en) * 1983-07-12 1983-08-10 Secr Defence Thermochromic liquid crystal displays
DE3526973A1 (de) * 1984-08-01 1986-02-06 Sharp Kk Blendfreier spiegel vom fluessigkristall-typ
CH662239GA3 (fr) * 1986-02-27 1987-09-30
FR2623649B1 (fr) * 1987-11-23 1992-05-15 Asulab Sa Cellule d'affichage a cristal liquide
US6753044B2 (en) 1991-11-27 2004-06-22 Reveo, Inc. Coloring media having improved brightness and color characteristics
US6034753A (en) * 1991-11-27 2000-03-07 Reveo, Inc. Circularly polarizing reflective material having super broad-band reflection and transmission characteristics and method of fabricating and using same in diverse applications
FR2685500B1 (fr) * 1991-12-20 1994-12-23 Thomson Csf Separateur optique de polarisations et application a un systeme de visualisation.
JPH06324337A (ja) * 1993-03-15 1994-11-25 Toshiba Corp 液晶表示装置
GB2286058A (en) * 1994-01-21 1995-08-02 Sharp Kk Switchable holographic apparatus
US5541745A (en) * 1994-01-25 1996-07-30 Fergason; James L. Illumination system for a display using cholesteric liquid crystal reflectors
US5532854A (en) * 1994-01-25 1996-07-02 Fergason; James L. Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus
US5717422A (en) * 1994-01-25 1998-02-10 Fergason; James L. Variable intensity high contrast passive display
US5519524A (en) * 1994-07-05 1996-05-21 Fergason; James L. Active matrix liquid crystal having a counterelectrode substrate extended and connected to an external circuit
US5606458A (en) * 1994-08-24 1997-02-25 Fergason; James L. Head mounted display and viewing system using a remote retro-reflector and method of displaying and viewing an image
US6147805A (en) * 1994-08-24 2000-11-14 Fergason; James L. Head mounted display and viewing system using a remote retro-reflector and method of displaying and viewing an image
US5808589A (en) * 1994-08-24 1998-09-15 Fergason; James L. Optical system for a head mounted display combining high and low resolution images
US5621572A (en) * 1994-08-24 1997-04-15 Fergason; James L. Optical system for a head mounted display using a retro-reflector and method of displaying an image
US6184969B1 (en) * 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
US6404464B1 (en) 1995-10-30 2002-06-11 Reveo, Inc. Method and system for producing color images with improved brightness and color characteristics on radiation absorptive surfaces
US6379009B1 (en) 1996-04-24 2002-04-30 James L. Fergason Conjugate optics projection display with image enhancement
US6008945A (en) * 1996-09-19 1999-12-28 Fergason; James L. Display system using conjugate optics and accommodation features and method of displaying and viewing an image
US6774961B2 (en) * 1996-11-08 2004-08-10 Reveo, Inc. Broad-band polarizer and method of fabricating broad-band polarizers
US6515717B1 (en) 1998-08-28 2003-02-04 Reveo, Inc. Computer-based system for producing multi-color multilayer images on substrates using dry multi-colored cholesteric liquid crystal (CLC) pigment materials applied to binder material patterns
US6647771B2 (en) 2000-08-30 2003-11-18 Mlhd, Inc. External pressure display for vehicle tires
KR20040081129A (ko) * 2002-01-17 2004-09-20 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 콜레스테릭층 및 정렬층의 조합물
US8243004B2 (en) 2003-03-10 2012-08-14 Fergason Patent Properties, Llc Apparatus and method for preparing, storing, transmitting and displaying images
GB2443649A (en) * 2006-11-07 2008-05-14 Sharp Kk Liquid crystal device having splay-twist and splay-bend mode
RU2443992C1 (ru) * 2010-07-30 2012-02-27 Станислав Георгиевич Денисов Способ регистрации изменения состояния физических полей и устройство для его реализации
RU2770167C1 (ru) * 2021-07-28 2022-04-14 Федеральное государственное бюджетное научное учреждение «Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук» Электроуправляемый жидкокристаллический вращатель поляризации монохроматического света

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220804A1 (fr) * 1973-03-08 1974-10-04 Western Electric Co
US3854793A (en) * 1972-06-27 1974-12-17 Bell Telephone Labor Inc Liquid crystal cells
US3857627A (en) * 1973-08-29 1974-12-31 Hoffmann La Roche Polarizer arrangement for liquid crystal displays
FR2261549A1 (fr) * 1974-02-15 1975-09-12 Hoffmann La Roche
DD117013A1 (fr) * 1975-01-21 1975-12-12

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH571723A5 (fr) * 1973-11-02 1976-01-15 Hoffmann La Roche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854793A (en) * 1972-06-27 1974-12-17 Bell Telephone Labor Inc Liquid crystal cells
FR2220804A1 (fr) * 1973-03-08 1974-10-04 Western Electric Co
US3857627A (en) * 1973-08-29 1974-12-31 Hoffmann La Roche Polarizer arrangement for liquid crystal displays
FR2261549A1 (fr) * 1974-02-15 1975-09-12 Hoffmann La Roche
DD117013A1 (fr) * 1975-01-21 1975-12-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546324A1 (fr) * 1983-05-17 1984-11-23 Thomson Csf Dispositif de visualisation a memoire entretenue
EP0198716A2 (fr) * 1985-04-17 1986-10-22 Laakmann Electro-Optics Inc. Atténuation variable d'un faisceau laser
EP0198716A3 (fr) * 1985-04-17 1988-11-23 Laakmann Electro-Optics Inc. Atténuation variable d'un faisceau laser

Also Published As

Publication number Publication date
GB1571496A (en) 1980-07-16
FR2350622B1 (fr) 1982-12-10
US4114990A (en) 1978-09-19

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