TW200806923A - Backlight wedge with encapsulated light source - Google Patents

Backlight wedge with encapsulated light source Download PDF

Info

Publication number
TW200806923A
TW200806923A TW096118452A TW96118452A TW200806923A TW 200806923 A TW200806923 A TW 200806923A TW 096118452 A TW096118452 A TW 096118452A TW 96118452 A TW96118452 A TW 96118452A TW 200806923 A TW200806923 A TW 200806923A
Authority
TW
Taiwan
Prior art keywords
light
light source
backlight
well
source well
Prior art date
Application number
TW096118452A
Other languages
English (en)
Chinese (zh)
Inventor
John Charles Schultz
Michael Alan Meis
Original Assignee
3M Innovative Properties 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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of TW200806923A publication Critical patent/TW200806923A/zh

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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
TW096118452A 2006-05-24 2007-05-23 Backlight wedge with encapsulated light source TW200806923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/440,327 US7317182B2 (en) 2006-05-24 2006-05-24 Backlight wedge with encapsulated light source

Publications (1)

Publication Number Publication Date
TW200806923A true TW200806923A (en) 2008-02-01

Family

ID=38748676

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096118452A TW200806923A (en) 2006-05-24 2007-05-23 Backlight wedge with encapsulated light source

Country Status (4)

Country Link
US (1) US7317182B2 (https=)
JP (1) JP2009538514A (https=)
TW (1) TW200806923A (https=)
WO (1) WO2007140087A1 (https=)

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US7740387B2 (en) 2006-05-24 2010-06-22 3M Innovative Properties Company Backlight wedge with side mounted light source
US7607814B2 (en) * 2006-05-24 2009-10-27 3M Innovative Properties Company Backlight with symmetric wedge shaped light guide input portion with specular reflective surfaces
US7660509B2 (en) * 2006-05-24 2010-02-09 3M Innovative Properties Company Backlight asymmetric light input wedge
US8469575B2 (en) 2007-05-20 2013-06-25 3M Innovative Properties Company Backlight and display system using same
CN101681597A (zh) * 2007-05-20 2010-03-24 3M创新有限公司 有效利用有色led光源的白光背光源等
CN101681057B (zh) 2007-05-20 2012-07-04 3M创新有限公司 光循环型薄壁中空腔体背光源
EP2160644B1 (en) 2007-05-20 2019-05-01 3M Innovative Properties Company Semi-specular components in hollow cavity light recycling backlights
US9028108B2 (en) * 2007-05-20 2015-05-12 3M Innovative Properties Company Collimating light injectors for edge-lit backlights
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US8757858B2 (en) * 2008-06-04 2014-06-24 3M Innovative Properties Company Hollow backlight with tilted light source
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US20160341854A1 (en) * 2013-12-26 2016-11-24 3M Innovative Properties Company Methods for making reflective trays
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US11128100B2 (en) 2017-02-08 2021-09-21 Princeton Optronics, Inc. VCSEL illuminator package including an optical structure integrated in the encapsulant

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Also Published As

Publication number Publication date
WO2007140087A1 (en) 2007-12-06
US7317182B2 (en) 2008-01-08
US20070272839A1 (en) 2007-11-29
JP2009538514A (ja) 2009-11-05

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