CA2413700C - Backlight with structured sufaces - Google Patents

Backlight with structured sufaces Download PDF

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Publication number
CA2413700C
CA2413700C CA002413700A CA2413700A CA2413700C CA 2413700 C CA2413700 C CA 2413700C CA 002413700 A CA002413700 A CA 002413700A CA 2413700 A CA2413700 A CA 2413700A CA 2413700 C CA2413700 C CA 2413700C
Authority
CA
Canada
Prior art keywords
lightguide
optical
optical structures
backlight
film
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
CA002413700A
Other languages
English (en)
French (fr)
Other versions
CA2413700A1 (en
Inventor
Mark E. Gardiner
Sandford Cobb
Wade D. Kretman
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.)
3M Innovative Properties Co
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
Priority claimed from US09/613,313 external-priority patent/US7046905B1/en
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of CA2413700A1 publication Critical patent/CA2413700A1/en
Application granted granted Critical
Publication of CA2413700C publication Critical patent/CA2413700C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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

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)
  • Light Guides In General And Applications Therefor (AREA)
CA002413700A 2000-07-11 2001-07-05 Backlight with structured sufaces Expired - Fee Related CA2413700C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/613,313 2000-07-11
US09/613,313 US7046905B1 (en) 1999-10-08 2000-07-11 Blacklight with structured surfaces
PCT/US2001/021294 WO2002004858A2 (en) 2000-07-11 2001-07-05 Backlight with structured sufaces

Publications (2)

Publication Number Publication Date
CA2413700A1 CA2413700A1 (en) 2002-01-17
CA2413700C true CA2413700C (en) 2007-01-09

Family

ID=24456785

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002413700A Expired - Fee Related CA2413700C (en) 2000-07-11 2001-07-05 Backlight with structured sufaces

Country Status (8)

Country Link
EP (1) EP1301743A2 (ko)
JP (1) JP2004507866A (ko)
KR (1) KR100830261B1 (ko)
CN (1) CN100350308C (ko)
AU (2) AU2001275868B8 (ko)
CA (1) CA2413700C (ko)
HK (1) HK1056210A1 (ko)
WO (1) WO2002004858A2 (ko)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050024849A1 (en) * 1999-02-23 2005-02-03 Parker Jeffery R. Methods of cutting or forming cavities in a substrate for use in making optical films, components or wave guides
US6908202B2 (en) * 2002-10-03 2005-06-21 General Electric Company Bulk diffuser for flat panel display
KR100926299B1 (ko) 2002-11-13 2009-11-12 삼성전자주식회사 백라이트 어셈블리용 반사판 및 이를 사용하는 백라이트어셈블리
US7316498B2 (en) * 2003-12-31 2008-01-08 General Electric Company Faceted optical substrate and method of fabricating a faceted optical substrate and a backlight display comprising the faceted optical substrate
US7106517B2 (en) * 2003-12-31 2006-09-12 General Electric Company Display optical films
KR100553155B1 (ko) * 2004-06-04 2006-02-22 주식회사 엘지에스 광학필름
KR100487105B1 (ko) * 2004-06-04 2005-05-04 주식회사 엘지에스 광학필름
KR100512193B1 (ko) * 2004-10-29 2005-09-05 주식회사 엘지에스 광학필름 및 이를 갖는 백라이트유닛
US7767273B2 (en) 2005-03-09 2010-08-03 3M Innovative Properties Company Apparatus and method for producing two-sided patterned web in registration
US7931841B2 (en) 2005-03-09 2011-04-26 3M Innovative Properties Company Microreplicated article
BRPI0608696A2 (pt) 2005-03-09 2010-12-07 3M Innovative Properties Co aparelho de microrreplicação de rolo para rolo e método de produzir um artigo microreplicado
KR101196035B1 (ko) * 2005-03-09 2012-10-30 쓰리엠 이노베이티브 프로퍼티즈 컴파니 흠결-감소 표면을 갖는 미세복제된 물품
DE602006009090D1 (de) * 2005-04-08 2009-10-22 3M Innovative Properties Co Strukturierte orientierte filme zur verwendung in displays
JP5290755B2 (ja) * 2005-08-27 2013-09-18 スリーエム イノベイティブ プロパティズ カンパニー 照明アセンブリおよびシステム
US7815355B2 (en) 2005-08-27 2010-10-19 3M Innovative Properties Company Direct-lit backlight having light recycling cavity with concave transflector
CN100406999C (zh) * 2005-09-09 2008-07-30 财团法人工业技术研究院 导光板及具有该导光板的背光模块
WO2007069125A2 (en) * 2005-12-15 2007-06-21 Koninklijke Philips Electronics N.V. Display system with variable diffuser
KR100770929B1 (ko) * 2006-05-26 2007-10-26 삼성전자주식회사 도광판 및 이를 이용한 백라이트 유닛
JP4874009B2 (ja) * 2006-06-19 2012-02-08 シチズン電子株式会社 光拡散装置
US9134471B2 (en) 2006-06-28 2015-09-15 3M Innovative Properties Company Oriented polymeric articles and method
KR100784021B1 (ko) 2006-07-04 2007-12-10 삼성에스디아이 주식회사 액정 표시 장치의 백라이트 유니트
JP4725529B2 (ja) * 2007-02-13 2011-07-13 ソニー株式会社 バックライト駆動装置、表示装置
AU2007354904B2 (en) 2007-06-14 2014-06-26 Avery Dennison Corporation Illuminated graphical and information display
WO2009100560A1 (zh) * 2008-01-31 2009-08-20 Dingguo Pan 变截面不等边直角三角形棱镜圆盘形反光板和用它制成的灯具
JP5827120B2 (ja) 2008-04-02 2015-12-02 スリーエム イノベイティブ プロパティズ カンパニー 導光フィルム及び導光フィルムを製作するための方法
KR100963676B1 (ko) * 2008-07-23 2010-06-15 제일모직주식회사 정면휘도 및 시야각이 개선된 프리즘 시트, 이를 채용한백라이트 유니트, 및 상기 백라이트 유니트를 구비한액정표시장치
US7931396B2 (en) * 2008-12-10 2011-04-26 Sharp Kabushiki Kaisha Backlight and display
KR101685224B1 (ko) * 2009-03-27 2016-12-09 키모토 컴파니 리미티드 뉴턴링 방지 시트, 및 이것을 사용한 터치 패널
CN101852876B (zh) * 2009-04-02 2012-06-13 财团法人工业技术研究院 复合型光学膜片以及面光源模块
JP5866765B2 (ja) * 2010-04-28 2016-02-17 ソニー株式会社 導電性素子およびその製造方法、配線素子、情報入力装置、表示装置、ならびに電子機器
JP5610202B2 (ja) * 2010-06-23 2014-10-22 ミネベア株式会社 面状照明装置
EP2463157B1 (en) * 2010-12-10 2015-04-15 SMR Patents S.à.r.l. Rear view mirror assembly with optical indicator
US8770810B2 (en) 2010-12-10 2014-07-08 Smr Patents S.A.R.L. Rear view mirror assembly with optical indicator
JP2017207736A (ja) * 2016-05-16 2017-11-24 恵和株式会社 液晶表示装置用光学シート、液晶表示装置用バックライトユニット及び液晶表示装置用光学シートの製造方法
JP7214334B2 (ja) * 2016-06-14 2023-01-30 恵和株式会社 バックライトユニット用プリズムシート及び液晶表示装置用バックライトユニット
US9810904B1 (en) * 2016-11-11 2017-11-07 Google Inc. Fresnel lens assembly having varying facet angle
FR3089308A1 (fr) 2018-11-30 2020-06-05 Commissariat A L'energie Atomique Et Aux Energies Alternatives Coupleur optique
JP7493149B2 (ja) 2020-10-28 2024-05-31 パナソニックＩｐマネジメント株式会社 光屈折部材、光学システム、照明システム、表示システム、移動体及び金型
FI20216059A1 (en) * 2021-10-13 2023-04-14 Nanocomp Oy Ltd LIGHT WIRE

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040883A (en) * 1989-10-30 1991-08-20 Minnesota Mining And Manufacturing Company Light fixture with beam shaping lens
JP2601766Y2 (ja) 1992-08-31 1999-12-06 日本電産コパル株式会社 面発光装置
JP3327656B2 (ja) * 1993-12-07 2002-09-24 日本ケミテック株式会社 楔形導光板の製造方法、楔形導光板及び該導光板を使用した面型照明体
JP3429387B2 (ja) * 1995-03-31 2003-07-22 株式会社エンプラス サイドライト型面光源装置
JPH09145933A (ja) * 1995-11-27 1997-06-06 Hitachi Ltd 液晶表示装置
US5917664A (en) * 1996-02-05 1999-06-29 3M Innovative Properties Company Brightness enhancement film with soft cutoff
US5854872A (en) * 1996-10-08 1998-12-29 Clio Technologies, Inc. Divergent angle rotator system and method for collimating light beams
JPH10339815A (ja) * 1997-06-09 1998-12-22 Sanyo Electric Co Ltd 導光板、導光板の製造方法及びその導光板を用いた面光源
JPH1124586A (ja) * 1997-06-30 1999-01-29 Sanyo Electric Co Ltd バックライト装置及び導光板
JP3615355B2 (ja) * 1997-06-04 2005-02-02 株式会社エンプラス サイドライト型面光源装置及び導光板
JPH11202135A (ja) * 1998-01-14 1999-07-30 Ohtsu Tire & Rubber Co Ltd :The バックライトユニット及びバックライト並びに導光板の製造方法
JP4347521B2 (ja) * 1998-02-18 2009-10-21 スリーエム カンパニー 光学フィルム
JP3651238B2 (ja) 1998-02-27 2005-05-25 オムロン株式会社 面光源装置
US6845212B2 (en) * 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures

Also Published As

Publication number Publication date
EP1301743A2 (en) 2003-04-16
WO2002004858A2 (en) 2002-01-17
KR20030015378A (ko) 2003-02-20
AU2001275868B2 (en) 2006-02-02
JP2004507866A (ja) 2004-03-11
HK1056210A1 (zh) 2004-02-06
AU7586801A (en) 2002-01-21
CA2413700A1 (en) 2002-01-17
AU2001275868B8 (en) 2006-05-11
WO2002004858A3 (en) 2002-05-23
KR100830261B1 (ko) 2008-05-16
CN100350308C (zh) 2007-11-21
CN1464955A (zh) 2003-12-31

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Legal Events

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EEER Examination request
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