IT965475B - Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici - Google Patents

Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici

Info

Publication number
IT965475B
IT965475B IT52916/72A IT5291672A IT965475B IT 965475 B IT965475 B IT 965475B IT 52916/72 A IT52916/72 A IT 52916/72A IT 5291672 A IT5291672 A IT 5291672A IT 965475 B IT965475 B IT 965475B
Authority
IT
Italy
Prior art keywords
images
screens
presentation
improvement
liquid crystal
Prior art date
Application number
IT52916/72A
Other languages
English (en)
Italian (it)
Original Assignee
Maltese P
Reali P
Barzilai G
Ottavi C
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 Maltese P, Reali P, Barzilai G, Ottavi C filed Critical Maltese P
Priority to IT52916/72A priority Critical patent/IT965475B/it
Priority to AR250203A priority patent/AR206687A1/es
Priority to DE19732346732 priority patent/DE2346732A1/de
Priority to GB4383573A priority patent/GB1451076A/en
Priority to AU60487/73A priority patent/AU6048773A/en
Priority to CH1353973A priority patent/CH577181A5/xx
Priority to CA181,504A priority patent/CA1003528A/en
Priority to FR7334036A priority patent/FR2201005A5/fr
Priority to IL43290A priority patent/IL43290A/en
Priority to BE135928A priority patent/BE805180A/xx
Priority to BR7361/73A priority patent/BR7307361D0/pt
Priority to NL7313049A priority patent/NL7313049A/xx
Priority to ES418985A priority patent/ES418985A1/es
Priority to JP48107406A priority patent/JPS4971952A/ja
Application granted granted Critical
Publication of IT965475B publication Critical patent/IT965475B/it
Priority to US05/636,567 priority patent/US4126382A/en

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
    • G02F1/139—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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
IT52916/72A 1972-09-22 1972-09-22 Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici IT965475B (it)

Priority Applications (15)

Application Number Priority Date Filing Date Title
IT52916/72A IT965475B (it) 1972-09-22 1972-09-22 Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici
AR250203A AR206687A1 (es) 1972-09-22 1973-01-01 Dispositivo electro-optico a cristal liquido
DE19732346732 DE2346732A1 (de) 1972-09-22 1973-09-17 Verfahren und vorrichtung zum wiedergeben von bildern mit elektrooptischen fluessigkristall-einrichtungen
GB4383573A GB1451076A (en) 1972-09-22 1973-09-18 Operational method for displaying images with liquid crystal electro optical devices and apparatus therefor
CH1353973A CH577181A5 (de) 1972-09-22 1973-09-20
CA181,504A CA1003528A (en) 1972-09-22 1973-09-20 Liquid-crystal electro-optical display device and method
AU60487/73A AU6048773A (en) 1972-09-22 1973-09-20 Operational method for displaying images with liquid-crystal electro optical devices
FR7334036A FR2201005A5 (de) 1972-09-22 1973-09-21
IL43290A IL43290A (en) 1972-09-22 1973-09-21 Operational method for the display of images with an electro-optical device and electro-optical device for performing said method
BE135928A BE805180A (fr) 1972-09-22 1973-09-21 Procede et dispositif pour la presentation d'images au moyen de dispositifs electro-optiques a cristal liquide
BR7361/73A BR7307361D0 (pt) 1972-09-22 1973-09-21 Processo de operacao para a apresentacao de imagens e dispositivo eletro-otico para a apresentacao de imagens
NL7313049A NL7313049A (de) 1972-09-22 1973-09-21
ES418985A ES418985A1 (es) 1972-09-22 1973-09-21 Metodo con su dispositivo correspondiente para la presenta-cion de imagenes.
JP48107406A JPS4971952A (de) 1972-09-22 1973-09-22
US05/636,567 US4126382A (en) 1972-09-22 1975-12-01 Operational method for displaying images with liquid-crystal electro-optical devices, and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT52916/72A IT965475B (it) 1972-09-22 1972-09-22 Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici

Publications (1)

Publication Number Publication Date
IT965475B true IT965475B (it) 1974-01-31

Family

ID=11278489

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52916/72A IT965475B (it) 1972-09-22 1972-09-22 Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici

Country Status (14)

Country Link
JP (1) JPS4971952A (de)
AR (1) AR206687A1 (de)
AU (1) AU6048773A (de)
BE (1) BE805180A (de)
BR (1) BR7307361D0 (de)
CA (1) CA1003528A (de)
CH (1) CH577181A5 (de)
DE (1) DE2346732A1 (de)
ES (1) ES418985A1 (de)
FR (1) FR2201005A5 (de)
GB (1) GB1451076A (de)
IL (1) IL43290A (de)
IT (1) IT965475B (de)
NL (1) NL7313049A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292253A1 (fr) * 1974-11-21 1976-06-18 Thomson Csf Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire
JPS5164899A (ja) * 1974-12-03 1976-06-04 Nippon Electric Co Ekishohyojisochi
US4006968A (en) * 1975-05-02 1977-02-08 Hughes Aircraft Company Liquid crystal dot color display
FR2389955B1 (de) * 1977-05-05 1981-12-04 Thomson Csf
EP0045104B1 (de) * 1980-07-28 1985-04-10 BBC Aktiengesellschaft Brown, Boveri & Cie. Homöotrop nematisches Display mit internem Reflektor
CH661361A5 (en) * 1983-12-16 1987-07-15 Bbc Brown Boveri & Cie Multiplexable liquid-crystal display
JPS62203126A (ja) * 1986-03-04 1987-09-07 Matsushita Electric Ind Co Ltd 表示装置
JP2586195B2 (ja) * 1990-08-30 1997-02-26 セイコーエプソン株式会社 液晶表示装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655269A (en) * 1971-01-25 1972-04-11 Rca Corp Liquid crystal display assembly having independent contrast and speed of response controls

Also Published As

Publication number Publication date
CH577181A5 (de) 1976-06-30
FR2201005A5 (de) 1974-04-19
DE2346732A1 (de) 1974-04-04
IL43290A0 (en) 1973-11-28
CA1003528A (en) 1977-01-11
NL7313049A (de) 1974-03-26
IL43290A (en) 1976-12-31
BR7307361D0 (pt) 1974-08-29
AU6048773A (en) 1975-03-20
BE805180A (fr) 1974-01-16
ES418985A1 (es) 1976-03-01
JPS4971952A (de) 1974-07-11
GB1451076A (en) 1976-09-29
AR206687A1 (es) 1976-08-13

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