TW200705509A - Backlinghting system - Google Patents

Backlinghting system

Info

Publication number
TW200705509A
TW200705509A TW095114582A TW95114582A TW200705509A TW 200705509 A TW200705509 A TW 200705509A TW 095114582 A TW095114582 A TW 095114582A TW 95114582 A TW95114582 A TW 95114582A TW 200705509 A TW200705509 A TW 200705509A
Authority
TW
Taiwan
Prior art keywords
low
discharge lamp
pressure mercury
mercury vapor
vapor discharge
Prior art date
Application number
TW095114582A
Other languages
Chinese (zh)
Inventor
Pieter Johannes Stobbelaar
Jan Pieter Dekker
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200705509A publication Critical patent/TW200705509A/en

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
    • 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
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
    • 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
    • G02B6/0073—Light emitting diode [LED]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

The invention relates to a backlighting system (4, 8) for spectrum sequential illumination of a display device (6). The backlighting system comprises a first low-pressure mercury vapor discharge lamp (10) having at least a first luminescent material emitting a first spectrum of light, a second low-pressure mercury vapor discharge lamp (20) having at least a second luminescent material emitting a second spectrum of light, and a light guide (30) having an entrance window (32) for admitting light from the second low-pressure mercury vapor discharge lamp (20) into the light guide (30) and having a light exit window (34) facing the display device (6). The first low-pressure mercury vapor discharge lamp (10) is arranged for direct incidence of light on to the display device (6), the second low-pressure mercury vapor discharge lamp (20) is arranged for edge lighting, and the light guide (30) is arranged between the first low-pressure mercury vapor discharge lamp (10) and the display device (6). The arrangement of the first and second low-pressure mercury vapor discharge lamp (10, 20) according to the invention reduces absorption of light from the first low-pressure mercury vapor discharge lamp (10) by luminescent material of the second low-pressure mercury vapor discharge lamp (20), and vice versa. This improves the efficiency of the backlighting system (4, 8).
TW095114582A 2005-04-27 2006-04-24 Backlinghting system TW200705509A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP05103456 2005-04-27
EP05103444 2005-04-27
EP05103445 2005-04-27
EP05109466 2005-10-12

Publications (1)

Publication Number Publication Date
TW200705509A true TW200705509A (en) 2007-02-01

Family

ID=36889130

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095114582A TW200705509A (en) 2005-04-27 2006-04-24 Backlinghting system

Country Status (2)

Country Link
TW (1) TW200705509A (en)
WO (1) WO2006114750A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056150A1 (en) 2006-11-28 2008-05-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electromagnetic rays radiating device for use in display device, has radiation uncoupling surface arranged in ray path of radiation-emitting arrangement, and radiation-steering unit directing electromagnetic ray to uncoupling surface
WO2008132915A1 (en) * 2007-04-18 2008-11-06 Sharp Kabushiki Kaisha Backlight device and liquid crystal display device
DE202010004777U1 (en) * 2010-04-09 2011-09-02 Zumtobel Lighting Gmbh Arrangement for emitting light with a plurality of light sources and a transparent light-emitting element
DE102012203791A1 (en) * 2012-03-12 2013-09-12 Zumtobel Lighting Gmbh LED module
DE102012020985A1 (en) * 2012-10-25 2014-04-30 Bartenbach Holding Gmbh lighting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735177C2 (en) * 1997-08-14 1999-07-01 Mannesmann Vdo Ag Display unit provided for fastening in a motor vehicle
US6608614B1 (en) * 2000-06-22 2003-08-19 Rockwell Collins, Inc. Led-based LCD backlight with extended color space
CN1685738B (en) * 2002-10-01 2010-11-03 皇家飞利浦电子股份有限公司 Color display device
DE102004002251A1 (en) * 2004-01-15 2005-08-04 Zumtobel Staff Gmbh Luminaire with different colored light sources and a light guide plate for emitting mixed light

Also Published As

Publication number Publication date
WO2006114750A1 (en) 2006-11-02

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