FR2802009B1 - LIGHTING DEVICE FOR A LIQUID CRYSTAL SCREEN - Google Patents

LIGHTING DEVICE FOR A LIQUID CRYSTAL SCREEN

Info

Publication number
FR2802009B1
FR2802009B1 FR9915419A FR9915419A FR2802009B1 FR 2802009 B1 FR2802009 B1 FR 2802009B1 FR 9915419 A FR9915419 A FR 9915419A FR 9915419 A FR9915419 A FR 9915419A FR 2802009 B1 FR2802009 B1 FR 2802009B1
Authority
FR
France
Prior art keywords
liquid crystal
lighting device
crystal screen
screen
lighting
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 - Fee Related
Application number
FR9915419A
Other languages
French (fr)
Other versions
FR2802009A1 (en
Inventor
Francois Lopez
Lauzun Frederic De
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 Avionics SAS
Original Assignee
Thales Avionics SAS
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 Thales Avionics SAS filed Critical Thales Avionics SAS
Priority to FR9915419A priority Critical patent/FR2802009B1/en
Publication of FR2802009A1 publication Critical patent/FR2802009A1/en
Application granted granted Critical
Publication of FR2802009B1 publication Critical patent/FR2802009B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
FR9915419A 1999-12-07 1999-12-07 LIGHTING DEVICE FOR A LIQUID CRYSTAL SCREEN Expired - Fee Related FR2802009B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9915419A FR2802009B1 (en) 1999-12-07 1999-12-07 LIGHTING DEVICE FOR A LIQUID CRYSTAL SCREEN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9915419A FR2802009B1 (en) 1999-12-07 1999-12-07 LIGHTING DEVICE FOR A LIQUID CRYSTAL SCREEN

Publications (2)

Publication Number Publication Date
FR2802009A1 FR2802009A1 (en) 2001-06-08
FR2802009B1 true FR2802009B1 (en) 2003-06-20

Family

ID=9552975

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9915419A Expired - Fee Related FR2802009B1 (en) 1999-12-07 1999-12-07 LIGHTING DEVICE FOR A LIQUID CRYSTAL SCREEN

Country Status (1)

Country Link
FR (1) FR2802009B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7116354B2 (en) 2001-06-20 2006-10-03 Xenogen Corporation Absolute intensity determination for a light source in low level light imaging systems
US7629573B2 (en) 2002-02-06 2009-12-08 Xenogen Corporation Tissue phantom calibration device for low level light imaging systems
US7649185B2 (en) 2002-02-06 2010-01-19 Xenogen Corporation Fluorescent phantom device
US7674000B2 (en) * 2007-04-30 2010-03-09 Honeywell International, Inc. Backlight for a display device with improved filtering and method for constructing the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714983A (en) * 1985-06-10 1987-12-22 Motorola, Inc. Uniform emission backlight
GB2267378B (en) * 1992-05-22 1996-07-10 Nokia Mobile Phones Uk Illuminated LCD apparatus
JPH0772815A (en) * 1992-12-15 1995-03-17 Koito Mfg Co Ltd Liquid crystal display device
JPH08201805A (en) * 1995-01-31 1996-08-09 Minolta Co Ltd Illumination structure of liquid crystal display surface
JP3187280B2 (en) * 1995-05-23 2001-07-11 シャープ株式会社 Surface lighting device
JPH10133591A (en) * 1996-08-07 1998-05-22 Seiko Instr Inc Light guide type lighting device and light guide type display device
JPH1130775A (en) * 1997-07-11 1999-02-02 Rohm Co Ltd Structure of liquid crystal display device with back light
JP3287275B2 (en) * 1997-09-09 2002-06-04 松下電器産業株式会社 Liquid crystal display

Also Published As

Publication number Publication date
FR2802009A1 (en) 2001-06-08

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070831