GB1350627A - Liquid crystal electro-optical modulators - Google Patents

Liquid crystal electro-optical modulators

Info

Publication number
GB1350627A
GB1350627A GB2425371*A GB2425371A GB1350627A GB 1350627 A GB1350627 A GB 1350627A GB 2425371 A GB2425371 A GB 2425371A GB 1350627 A GB1350627 A GB 1350627A
Authority
GB
United Kingdom
Prior art keywords
cell
potential
frequency
liquid crystal
amplitude
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.)
Expired
Application number
GB2425371*A
Other languages
English (en)
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1350627A publication Critical patent/GB1350627A/en
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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
GB2425371*A 1970-03-17 1971-04-19 Liquid crystal electro-optical modulators Expired GB1350627A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7009518A FR2082477A5 (enExample) 1970-03-17 1970-03-17

Publications (1)

Publication Number Publication Date
GB1350627A true GB1350627A (en) 1974-04-18

Family

ID=9052394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2425371*A Expired GB1350627A (en) 1970-03-17 1971-04-19 Liquid crystal electro-optical modulators

Country Status (7)

Country Link
US (1) US3718381A (enExample)
CA (1) CA929612A (enExample)
CH (1) CH522234A (enExample)
DE (1) DE2112961C2 (enExample)
FR (1) FR2082477A5 (enExample)
GB (1) GB1350627A (enExample)
NL (1) NL7103402A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331191C2 (de) * 1972-06-24 1984-06-07 Durst AG, Fabrik Fototechnischer Apparate, Bozen Lichtmeßgerät
US3991416A (en) * 1975-09-18 1976-11-09 Hughes Aircraft Company AC biased and resonated liquid crystal display
DE3411048A1 (de) * 1984-03-26 1985-09-26 Rainer 6072 Dreieich Bauer Schaltung zur ansteuerung von fluessigkristallschichten und anordnung zu ihrer anwendung
DE3446474C2 (de) * 1984-12-20 1987-04-09 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Lichtmodulator auf Flüssigkristallbasis
DE8812322U1 (de) * 1988-09-29 1988-12-08 Rohrer, Emil, 8901 Königsbrunn Abdeckung von Beleuchtungseinrichtungen an Kraftfahrzeugen
US6559903B2 (en) 1991-11-27 2003-05-06 Reveo, Inc. Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter
DE19607728A1 (de) * 1996-02-29 1997-09-04 Siemens Ag Infrarot-Datenschnittstelle
US6257530B1 (en) * 1999-12-20 2001-07-10 Chin Hai Tsai Clasping device for longitudinal object

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575492A (en) * 1969-07-10 1971-04-20 Rca Corp Turnoff method and circuit for liquid crystal display element
US3575493A (en) * 1969-08-05 1971-04-20 Rca Corp Fast self-quenching of dynamic scattering in liquid crystal devices

Also Published As

Publication number Publication date
CA929612A (en) 1973-07-03
DE2112961A1 (de) 1971-10-07
CH522234A (fr) 1972-06-15
FR2082477A5 (enExample) 1971-12-10
DE2112961C2 (de) 1982-09-09
NL7103402A (enExample) 1971-09-21
US3718381A (en) 1973-02-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee