FR2413676A1 - Modulateur de lumiere a cristaux liquides a excitation alternative - Google Patents

Modulateur de lumiere a cristaux liquides a excitation alternative

Info

Publication number
FR2413676A1
FR2413676A1 FR7836432A FR7836432A FR2413676A1 FR 2413676 A1 FR2413676 A1 FR 2413676A1 FR 7836432 A FR7836432 A FR 7836432A FR 7836432 A FR7836432 A FR 7836432A FR 2413676 A1 FR2413676 A1 FR 2413676A1
Authority
FR
France
Prior art keywords
liquid crystal
crystal light
alternative
light modulator
excitement
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.)
Granted
Application number
FR7836432A
Other languages
English (en)
Other versions
FR2413676B1 (fr
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of FR2413676A1 publication Critical patent/FR2413676A1/fr
Application granted granted Critical
Publication of FR2413676B1 publication Critical patent/FR2413676B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D44/00—Charge transfer devices
    • H10D44/40—Charge-coupled devices [CCD]
    • H10D44/45—Charge-coupled devices [CCD] having field effect produced by insulated gate electrodes 
    • H10D44/462—Buried-channel CCD
    • 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
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136277—Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon

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)
  • Microelectronics & Electronic Packaging (AREA)
  • Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Light Receiving Elements (AREA)

Abstract

L'INVENTION CONCERNE LES MODULATEURS DE LUMIERE A CRISTAUX LIQUIDES. ELLE SE RAPPORTE A UN MODULATEUR DE LUMIERE DANS LEQUEL DES JONCTIONS FORMEES ENTRE LE SUBSTRAT SEMI-CONDUCTEUR 16 ET DES REGIONS DOPEES 25 FORMENT UNE STRUCTURE A DIODES, PRES D'UNE COUCHE DIELECTRIQUE 14 ET, LORS DE L'EXCITATION ALTERNATIVE DU MODULATEUR, DANS UNE PARTIE DU CYCLE, LES DIODES SONT POLARISEES DANS LE SENS DIRECT ET PERMETTENT LA CIRCULATION D'UN COURANT QUI CHARGE UN CONDENSATEUR MOS ALORS QUE, PENDANT LE RESTE DU CYCLE, LE CONDENSATEUR TEND A SE DECHARGER ET POLARISE LES DIODES EN SENS INVERSE. APPLICATION A LA REALISATION DE MODULATEURS DE LUMIERE.
FR7836432A 1977-12-28 1978-12-27 Modulateur de lumiere a cristaux liquides a excitation alternative Granted FR2413676A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/865,281 US4191452A (en) 1977-12-28 1977-12-28 AC silicon PN junction photodiode light-valve substrate

Publications (2)

Publication Number Publication Date
FR2413676A1 true FR2413676A1 (fr) 1979-07-27
FR2413676B1 FR2413676B1 (fr) 1983-09-02

Family

ID=25345121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836432A Granted FR2413676A1 (fr) 1977-12-28 1978-12-27 Modulateur de lumiere a cristaux liquides a excitation alternative

Country Status (6)

Country Link
US (1) US4191452A (fr)
JP (1) JPS5492196A (fr)
DE (1) DE2854945C2 (fr)
FR (1) FR2413676A1 (fr)
GB (1) GB2011639B (fr)
NL (1) NL190970C (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3176454D1 (en) * 1980-02-22 1987-10-22 Toshiba Kk Liquid crystal display device
US4538884A (en) * 1981-07-10 1985-09-03 Canon Kabushiki Kaisha Electro-optical device and method of operating same
EP0112417A1 (fr) * 1982-12-22 1984-07-04 International Business Machines Corporation Dispositif d'affichage intégré avec des circuits à semi-conducteurs et procédé pour la fabrication d'un tel dispositif
GB2152691B (en) * 1983-08-12 1986-11-12 Standard Telephones Cables Ltd Infra-red detector
US4602850A (en) * 1984-03-08 1986-07-29 Vidium, Inc. Light valve display having integrated driving circuits and shield electrode
US4655554A (en) * 1985-03-06 1987-04-07 The United States Of America As Represented By The Secretary Of The Air Force Spatial light modulator having a capacitively coupled photoconductor
GB8531307D0 (en) * 1985-12-19 1986-01-29 Turner J H T v screen
EP0234429B1 (fr) * 1986-02-17 1995-05-24 Sel Semiconductor Energy Laboratory Co., Ltd. Dispositif à cristal liquide pourvu d'une structure à stockage de charge
US4767192A (en) * 1986-10-31 1988-08-30 International Business Machines Corporation Light activated light valve with a silicon control element
US4807976A (en) * 1987-04-01 1989-02-28 Hughes Aircraft Company Light valve system and method with pulsed readout
US4925276A (en) * 1987-05-01 1990-05-15 Electrohome Limited Liquid crystal light valve utilizing hydrogenated amorphous silicon photodiode
US4826300A (en) * 1987-07-30 1989-05-02 Hughes Aircraft Company Silicon-on-sapphire liquid crystal light valve and method
US5051570A (en) * 1989-01-20 1991-09-24 Nec Corporation Liquid crystal light valve showing an improved display contrast
US5178445A (en) * 1989-06-09 1993-01-12 Garrett Moddel Optically addressed spatial light modulator
US5076670A (en) * 1989-10-13 1991-12-31 Hughes Aircraft Company Isolated pixel liquid crystal light valve structure
US5220445A (en) * 1990-01-26 1993-06-15 Victor Company Of Japan, Ltd. Optical image processor
EP0498375B1 (fr) * 1991-02-04 1995-06-21 Nippon Telegraph And Telephone Corporation Filtre sélectif de longeur d'onde tuneable électriquement
US5227886A (en) * 1991-02-19 1993-07-13 Hughes Aircraft Company Optical imaging/display CCD light valve and method
JPH06202059A (ja) * 1993-01-07 1994-07-22 Victor Co Of Japan Ltd カラー表示装置
US5396261A (en) * 1993-03-01 1995-03-07 Wah-Iii Technology Corporation Polysilicon gate bus with interspersed buffers for driving a row of pixels in an active matrix liquid crystal display
US5365355A (en) * 1993-03-10 1994-11-15 Wah-Iii Technology Corporation Light blocking, pixel enhancement and photocurrent reduction in active matrix liquid crystal displays
JPH08271880A (ja) * 1995-04-03 1996-10-18 Toshiba Corp 遮光膜，液晶表示装置および遮光膜形成用材料
US6069674A (en) * 1995-05-19 2000-05-30 Sharp Kabushiki Kaisha Liquid crystal display apparatus
US6124912A (en) * 1997-06-09 2000-09-26 National Semiconductor Corporation Reflectance enhancing thin film stack in which pairs of dielectric layers are on a reflector and liquid crystal is on the dielectric layers
US5965873A (en) * 1997-09-17 1999-10-12 Lockheed Martin Energy Research Corporation Integrated CMOS spectrometers
US6452652B1 (en) 1998-06-12 2002-09-17 National Semiconductor Corporation Light absorbing thin film stack in a light valve structure
US6300241B1 (en) 1998-08-19 2001-10-09 National Semiconductor Corporation Silicon interconnect passivation and metallization process optimized to maximize reflectance
RU2170449C2 (ru) * 1999-02-16 2001-07-10 Курский государственный технический университет Способ управления преобразователем изображения и устройство для его реализации

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032954A (en) * 1976-06-01 1977-06-28 Hughes Aircraft Company Silicon single crystal charge storage diode
BE868224A (fr) * 1977-06-20 1978-10-16 Hughes Aircraft Co Valve de lumiere a cristaux liquides fonctionnant en courant alternatif

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976361A (en) * 1974-11-18 1976-08-24 Hughes Aircraft Company Charge storage diode with graded defect density photocapacitive layer
US4093357A (en) * 1977-04-05 1978-06-06 Hughes Aircraft Company Cermet interface for electro-optical devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032954A (en) * 1976-06-01 1977-06-28 Hughes Aircraft Company Silicon single crystal charge storage diode
BE868224A (fr) * 1977-06-20 1978-10-16 Hughes Aircraft Co Valve de lumiere a cristaux liquides fonctionnant en courant alternatif

Also Published As

Publication number Publication date
DE2854945C2 (de) 1983-01-13
GB2011639B (en) 1982-06-09
NL190970B (nl) 1994-06-16
US4191452A (en) 1980-03-04
JPH028293B2 (fr) 1990-02-23
NL7812626A (nl) 1979-07-02
FR2413676B1 (fr) 1983-09-02
DE2854945A1 (de) 1979-07-05
NL190970C (nl) 1994-11-16
GB2011639A (en) 1979-07-11
JPS5492196A (en) 1979-07-21

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Legal Events

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