FR2250128B3 - - Google Patents

Info

Publication number
FR2250128B3
FR2250128B3 FR7436571A FR7436571A FR2250128B3 FR 2250128 B3 FR2250128 B3 FR 2250128B3 FR 7436571 A FR7436571 A FR 7436571A FR 7436571 A FR7436571 A FR 7436571A FR 2250128 B3 FR2250128 B3 FR 2250128B3
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
Application number
FR7436571A
Other versions
FR2250128A1 (fr
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of FR2250128A1 publication Critical patent/FR2250128A1/fr
Application granted granted Critical
Publication of FR2250128B3 publication Critical patent/FR2250128B3/fr
Expired 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
    • G02F1/133—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
    • G02F1/133719—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films with coupling agent molecules, e.g. silane
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
FR7436571A 1973-11-02 1974-11-04 Expired FR2250128B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1544973A CH571723A5 (fr) 1973-11-02 1973-11-02

Publications (2)

Publication Number Publication Date
FR2250128A1 FR2250128A1 (fr) 1975-05-30
FR2250128B3 true FR2250128B3 (fr) 1977-08-05

Family

ID=4409191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436571A Expired FR2250128B3 (fr) 1973-11-02 1974-11-04

Country Status (6)

Country Link
US (1) US3914020A (fr)
JP (1) JPS5080151A (fr)
CH (1) CH571723A5 (fr)
DE (1) DE2451656A1 (fr)
FR (1) FR2250128B3 (fr)
NL (1) NL7414291A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153529A (en) * 1975-04-21 1979-05-08 Hughes Aircraft Company Means and method for inducing uniform parallel alignment of liquid crystal material in a liquid crystal cell
US4097128A (en) * 1975-04-24 1978-06-27 Tokyo Shibaura Electric Co., Ltd. Liquid crystal color display devices
FR2332550A1 (fr) * 1975-11-19 1977-06-17 Commissariat Energie Atomique Procede et dispositifs d'orientation oblique des molecules d'un cristal liquide
GB1571496A (en) * 1976-05-04 1980-07-16 Standard Telephones Cables Ltd Cholesteric liquid crystal cells
GB1601601A (en) * 1978-01-18 1981-11-04 Standard Telephones Cables Ltd Liquid crystal display cells
US4400060A (en) * 1981-04-08 1983-08-23 Bell Telephone Laboratories, Incorporated Cell isolation in bistable nematic liquid crystal cells
US4577930A (en) * 1982-05-24 1986-03-25 International Business Machines Corporation Weak boundary storage liquid crystal display devices with bias voltage
US5040876A (en) * 1990-03-07 1991-08-20 Bell Communications Research, Inc. Liquid crystal light modulators with asymmetrical interfaces
DE4236734A1 (de) * 1992-10-30 1994-05-05 Licentia Gmbh Flüssigkristallzelle und Verfahren zu deren Herstellung
JPH08122750A (ja) * 1994-10-19 1996-05-17 Sharp Corp 液晶電気光学装置、それを利用した投射型表示装置及びそれらの駆動方法
JP3465776B2 (ja) * 1996-10-04 2003-11-10 シャープ株式会社 液晶表示装置
JP3460527B2 (ja) * 1996-10-04 2003-10-27 シャープ株式会社 液晶表示装置

Also Published As

Publication number Publication date
DE2451656A1 (de) 1975-05-07
NL7414291A (nl) 1975-05-07
CH571723A5 (fr) 1976-01-15
FR2250128A1 (fr) 1975-05-30
US3914020A (en) 1975-10-21
JPS5080151A (fr) 1975-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse