TW200604675A - Planer light source device and display device using it - Google Patents

Planer light source device and display device using it

Info

Publication number
TW200604675A
TW200604675A TW094115551A TW94115551A TW200604675A TW 200604675 A TW200604675 A TW 200604675A TW 094115551 A TW094115551 A TW 094115551A TW 94115551 A TW94115551 A TW 94115551A TW 200604675 A TW200604675 A TW 200604675A
Authority
TW
Taiwan
Prior art keywords
light source
light guide
light
guide rods
source device
Prior art date
Application number
TW094115551A
Other languages
English (en)
Other versions
TWI299422B (zh
Inventor
Koji Ichikawa
Seiji Sakai
Yoshiyuki Yoneda
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of TW200604675A publication Critical patent/TW200604675A/zh
Application granted granted Critical
Publication of TWI299422B publication Critical patent/TWI299422B/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
    • G02B6/0005—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 of the fibre type
    • G02B6/001—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 of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
    • 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
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4228—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements
    • G02B6/423—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements using guiding surfaces for the alignment

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
TW094115551A 2004-06-07 2005-05-13 Planer light source device and display device using it TW200604675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004168866A JP4314157B2 (ja) 2004-06-07 2004-06-07 面状光源装置およびこれを用いた表示装置

Publications (2)

Publication Number Publication Date
TW200604675A true TW200604675A (en) 2006-02-01
TWI299422B TWI299422B (zh) 2008-08-01

Family

ID=35448695

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094115551A TW200604675A (en) 2004-06-07 2005-05-13 Planer light source device and display device using it

Country Status (3)

Country Link
US (1) US7300184B2 (zh)
JP (1) JP4314157B2 (zh)
TW (1) TW200604675A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN101858532B (zh) * 2009-04-01 2012-11-28 乐金显示有限公司 背光单元及使用该背光单元的液晶显示器

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JP4096232B2 (ja) 2002-07-04 2008-06-04 株式会社栗原工業 Ｌｅｄ面光源装置
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Publication number Priority date Publication date Assignee Title
CN101858532B (zh) * 2009-04-01 2012-11-28 乐金显示有限公司 背光单元及使用该背光单元的液晶显示器
US8508692B2 (en) 2009-04-01 2013-08-13 Lg Display Co., Ltd. Backlight unit and liquid crystal display using the same comprising first and second light guide plate arrays connected to and independently controlled by first and second light array driving parts respectively
TWI414858B (zh) * 2009-04-01 2013-11-11 Lg Display Co Ltd 背光單元及具有該背光單元之液晶顯示裝置

Also Published As

Publication number Publication date
US20050270796A1 (en) 2005-12-08
US7300184B2 (en) 2007-11-27
JP4314157B2 (ja) 2009-08-12
TWI299422B (zh) 2008-08-01
JP2005347214A (ja) 2005-12-15

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