FR2220804A1 - - Google Patents

Info

Publication number
FR2220804A1
FR2220804A1 FR7407137A FR7407137A FR2220804A1 FR 2220804 A1 FR2220804 A1 FR 2220804A1 FR 7407137 A FR7407137 A FR 7407137A FR 7407137 A FR7407137 A FR 7407137A FR 2220804 A1 FR2220804 A1 FR 2220804A1
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.)
Granted
Application number
FR7407137A
Other languages
French (fr)
Other versions
FR2220804B1 (enrdf_load_stackoverflow
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
Priority claimed from US00339368A external-priority patent/US3833287A/en
Priority claimed from US00419613A external-priority patent/US3837730A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2220804A1 publication Critical patent/FR2220804A1/fr
Application granted granted Critical
Publication of FR2220804B1 publication Critical patent/FR2220804B1/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
    • G02F1/137—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
    • G02F1/13731—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 a field-induced phase transition
    • G02F1/13737—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 a field-induced phase transition in liquid crystals doped with a pleochroic dye
    • 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
    • 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
    • C09K19/60—Pleochroic dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Substances (AREA)
FR7407137A 1973-03-08 1974-03-01 Expired FR2220804B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00339368A US3833287A (en) 1973-03-08 1973-03-08 Guest-host liquid crystal device
US00419613A US3837730A (en) 1973-11-28 1973-11-28 Matrix-addressed liquid crystal display

Publications (2)

Publication Number Publication Date
FR2220804A1 true FR2220804A1 (enrdf_load_stackoverflow) 1974-10-04
FR2220804B1 FR2220804B1 (enrdf_load_stackoverflow) 1976-10-08

Family

ID=26991601

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407137A Expired FR2220804B1 (enrdf_load_stackoverflow) 1973-03-08 1974-03-01

Country Status (4)

Country Link
JP (1) JPS6222153B2 (enrdf_load_stackoverflow)
DE (1) DE2410557C2 (enrdf_load_stackoverflow)
FR (1) FR2220804B1 (enrdf_load_stackoverflow)
GB (1) GB1464791A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350622A1 (fr) * 1976-05-04 1977-12-02 Itt Cellule de cristaux liquides a l'etat cholesterique
FR2356173A1 (fr) * 1976-06-21 1978-01-20 Gen Electric Procede pour ameliorer le temps de descente d'un dispositif d'affichage a composition de cristaux liquides nematique en helice
FR2416519A1 (fr) * 1978-02-06 1979-08-31 Ebauches Sa Cellule d'affichage electro-optique passif

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638924B2 (enrdf_load_stackoverflow) * 1973-12-20 1981-09-09
CH614828GA3 (en) * 1976-06-16 1979-12-28 Liquid-crystal display with a guest/host liquid-crystal layer and method for producing this liquid-crystal display
DE2706405C3 (de) * 1977-02-15 1985-08-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen Anzeigeanordnung zur Darstellung von hellen Bildern vor dunklem Hintergrund
JPS53102055A (en) * 1977-02-18 1978-09-06 Toshiba Corp Liquid crystal color display element
JPS5923328A (ja) * 1982-07-29 1984-02-06 Sharp Corp 液晶表示装置
GB2129954B (en) * 1982-10-22 1986-03-05 Stc Plc Liquid crystal display device
CN116376082B (zh) * 2022-04-26 2025-03-21 天津大学 一种光响应软体驱动材料、光驱动软体飞行器、电子器件及其制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT946051B (it) * 1970-12-04 1973-05-21 Hoffmann La Roche Cellula ottica

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350622A1 (fr) * 1976-05-04 1977-12-02 Itt Cellule de cristaux liquides a l'etat cholesterique
FR2356173A1 (fr) * 1976-06-21 1978-01-20 Gen Electric Procede pour ameliorer le temps de descente d'un dispositif d'affichage a composition de cristaux liquides nematique en helice
FR2416519A1 (fr) * 1978-02-06 1979-08-31 Ebauches Sa Cellule d'affichage electro-optique passif

Also Published As

Publication number Publication date
JPS49127645A (enrdf_load_stackoverflow) 1974-12-06
DE2410557A1 (de) 1974-09-12
GB1464791A (en) 1977-02-16
FR2220804B1 (enrdf_load_stackoverflow) 1976-10-08
DE2410557C2 (de) 1984-08-30
JPS6222153B2 (enrdf_load_stackoverflow) 1987-05-15

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Legal Events

Date Code Title Description
ST Notification of lapse