TW200528870A - Multiple lightguide backlight - Google Patents

Multiple lightguide backlight Download PDF

Info

Publication number
TW200528870A
TW200528870A TW093135120A TW93135120A TW200528870A TW 200528870 A TW200528870 A TW 200528870A TW 093135120 A TW093135120 A TW 093135120A TW 93135120 A TW93135120 A TW 93135120A TW 200528870 A TW200528870 A TW 200528870A
Authority
TW
Taiwan
Prior art keywords
light guide
light
backlight system
item
backlight
Prior art date
Application number
TW093135120A
Other languages
English (en)
Chinese (zh)
Inventor
David John Lamb
Keith Michael Kotchick
Mark Brian O'neill
Patrick Henry Marushin
Kenneth Alan Epstein
Philip Edwin Watson
Mark Edward Gardiner
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 TW200528870A publication Critical patent/TW200528870A/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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • 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
    • 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
    • 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
    • G02B6/0033—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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
TW093135120A 2003-12-23 2004-11-16 Multiple lightguide backlight TW200528870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/744,569 US7303322B2 (en) 2003-12-23 2003-12-23 Multiple lightguide backlight

Publications (1)

Publication Number Publication Date
TW200528870A true TW200528870A (en) 2005-09-01

Family

ID=34678903

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093135120A TW200528870A (en) 2003-12-23 2004-11-16 Multiple lightguide backlight

Country Status (7)

Country Link
US (1) US7303322B2 (https=)
EP (1) EP1706783A1 (https=)
JP (1) JP2007516582A (https=)
KR (1) KR20060122902A (https=)
CN (1) CN100465721C (https=)
TW (1) TW200528870A (https=)
WO (1) WO2005069066A1 (https=)

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Also Published As

Publication number Publication date
CN1898594A (zh) 2007-01-17
US20050135115A1 (en) 2005-06-23
KR20060122902A (ko) 2006-11-30
US7303322B2 (en) 2007-12-04
EP1706783A1 (en) 2006-10-04
WO2005069066A1 (en) 2005-07-28
JP2007516582A (ja) 2007-06-21
CN100465721C (zh) 2009-03-04

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