IT980502B - COLOR TELEVISION SYSTEM USING LIQUID CRYSTAL FILTERS - Google Patents

COLOR TELEVISION SYSTEM USING LIQUID CRYSTAL FILTERS

Info

Publication number
IT980502B
IT980502B IT6761573A IT6761573A IT980502B IT 980502 B IT980502 B IT 980502B IT 6761573 A IT6761573 A IT 6761573A IT 6761573 A IT6761573 A IT 6761573A IT 980502 B IT980502 B IT 980502B
Authority
IT
Italy
Prior art keywords
liquid crystal
television system
color television
crystal filters
filters
Prior art date
Application number
IT6761573A
Other languages
Italian (it)
Inventor
Jacques Robert
J Borel
D Chagnot
Original Assignee
Commissariat Energie Atomique
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 Commissariat Energie Atomique filed Critical Commissariat Energie Atomique
Application granted granted Critical
Publication of IT980502B publication Critical patent/IT980502B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/22—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/20—Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards
    • H04N11/22—Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards in which simultaneous signals are converted into sequential signals or vice versa
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/34—Colour display without the use of colour mosaic filters

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Liquid Crystal (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Color Television Image Signal Generators (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
IT6761573A 1972-03-08 1973-03-07 COLOR TELEVISION SYSTEM USING LIQUID CRYSTAL FILTERS IT980502B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7207976A FR2174706B1 (en) 1972-03-08 1972-03-08

Publications (1)

Publication Number Publication Date
IT980502B true IT980502B (en) 1974-10-10

Family

ID=9094818

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6761573A IT980502B (en) 1972-03-08 1973-03-07 COLOR TELEVISION SYSTEM USING LIQUID CRYSTAL FILTERS

Country Status (5)

Country Link
JP (1) JPS491132A (en)
DE (1) DE2311548A1 (en)
FR (1) FR2174706B1 (en)
GB (1) GB1373894A (en)
IT (1) IT980502B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2284237A1 (en) * 1974-09-06 1976-04-02 Thomson Csf COLOR IMAGE TELEPROJECTION AND TELEPROGRAPHY DEVICE
DE2452392A1 (en) * 1974-11-05 1976-05-06 Licentia Gmbh Reproduction system for colour images - involves cathode-ray tube with only one electron beam and optical filter arrangement
JPS5378940A (en) * 1976-12-23 1978-07-12 Nippon Electric Co Partial plating method
JPS53122631A (en) * 1977-03-31 1978-10-26 Sumitomo Metal Ind Ltd Method of and device for continuous electroplating one surface of strip
GB2034900B (en) * 1978-11-17 1982-10-20 Marconi Instruments Ltd Spectrum analyser
JPH0244303Y2 (en) * 1979-01-29 1990-11-26
JPS5897022A (en) * 1981-12-04 1983-06-09 Yokogawa Hokushin Electric Corp Color optical modulator
US4635051A (en) * 1983-09-26 1987-01-06 Tektronix, Inc. High-speed electro-optical light gate and field sequential full color display system incorporating same
US4613207A (en) * 1984-05-08 1986-09-23 Manchester R & D Partnership Liquid crystal projector and method
JPH0466692A (en) * 1990-07-06 1992-03-03 Nippon Avionics Co Ltd Method for plating one side surface of metal plate and holding table
GB2277654B (en) * 1993-04-27 1997-12-03 Yang Tai Her Colour television system

Also Published As

Publication number Publication date
JPS491132A (en) 1974-01-08
GB1373894A (en) 1974-11-13
DE2311548A1 (en) 1973-09-27
FR2174706B1 (en) 1978-03-03
FR2174706A1 (en) 1973-10-19

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