FR2189767B1 - - Google Patents

Info

Publication number
FR2189767B1
FR2189767B1 FR7321701A FR7321701A FR2189767B1 FR 2189767 B1 FR2189767 B1 FR 2189767B1 FR 7321701 A FR7321701 A FR 7321701A FR 7321701 A FR7321701 A FR 7321701A FR 2189767 B1 FR2189767 B1 FR 2189767B1
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
FR7321701A
Other languages
French (fr)
Other versions
FR2189767A1 (fi
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2189767A1 publication Critical patent/FR2189767A1/fr
Application granted granted Critical
Publication of FR2189767B1 publication Critical patent/FR2189767B1/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
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • 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
    • G02F1/133765—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers without a surface treatment

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
FR7321701A 1972-06-23 1973-06-14 Expired FR2189767B1 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26545872A 1972-06-23 1972-06-23
US26545972A 1972-06-23 1972-06-23

Publications (2)

Publication Number Publication Date
FR2189767A1 FR2189767A1 (fi) 1974-01-25
FR2189767B1 true FR2189767B1 (fi) 1976-06-11

Family

ID=26951217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321701A Expired FR2189767B1 (fi) 1972-06-23 1973-06-14

Country Status (5)

Country Link
JP (1) JPS4953063A (fi)
CH (1) CH566018A5 (fi)
DE (1) DE2331437A1 (fi)
FR (1) FR2189767B1 (fi)
GB (1) GB1435591A (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334876B2 (fi) * 1972-09-29 1978-09-22
JPS542580B2 (fi) * 1974-07-01 1979-02-09
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
JPS52117954U (fi) * 1977-03-10 1977-09-07
GB1569687A (en) * 1977-11-10 1980-06-18 Standard Telephones Cables Ltd Smectic display cell
GB1569688A (en) * 1977-11-10 1980-06-18 Standard Telephones Cables Ltd Smectic display cell
US4256787A (en) * 1978-05-03 1981-03-17 Massachusetts Institute Of Technology Orientation of ordered liquids and their use in devices
DE2820245A1 (de) * 1978-05-09 1979-11-15 Siemens Ag Verfahren zur herstellung der orientierungsschicht einer fluessigkristallanzeige
DE2820219A1 (de) * 1978-05-09 1979-11-22 Siemens Ag Fluessigkristallanzeige
DE2931293C2 (de) * 1979-08-01 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Herstellung einer Flüssigkristallanzeige
DE2931259C2 (de) * 1979-08-01 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Herstellung einer Flüssigkristallanzeige
GB8318863D0 (en) * 1983-07-12 1983-08-10 Secr Defence Thermochromic liquid crystal displays
US4729640A (en) * 1984-10-03 1988-03-08 Canon Kabushiki Kaisha Liquid crystal light modulation device
DE3627113A1 (de) * 1985-08-07 1987-02-19 Canon Kk Anzeigevorrichtung in einem sucher
JPH0833559B2 (ja) * 1988-04-21 1996-03-29 旭硝子株式会社 液晶光学素子の製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426728A (en) * 1964-10-15 1969-02-11 John F Dreyer Apparatus for producing oriented patterns
FR1476194A (fr) * 1965-04-26 1967-04-07 Rca Corp Procédé et dispositifs pour le contrôle des propriétés de substances mélangées avec des cristaux liquides
FR2134160B1 (fi) * 1971-04-22 1975-01-17 Commissariat Energie Atomique

Also Published As

Publication number Publication date
GB1435591A (en) 1976-05-12
CH566018A5 (fi) 1975-08-29
DE2331437A1 (de) 1974-01-17
JPS4953063A (fi) 1974-05-23
FR2189767A1 (fi) 1974-01-25

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Legal Events

Date Code Title Description
ST Notification of lapse