DE602005019373D1 - Stabförmiger Licht-Transmissionkörper, Beleuchtungsvorrichtung und Flüssigkristallanzeigevorrichtung - Google Patents

Stabförmiger Licht-Transmissionkörper, Beleuchtungsvorrichtung und Flüssigkristallanzeigevorrichtung

Info

Publication number
DE602005019373D1
DE602005019373D1 DE602005019373T DE602005019373T DE602005019373D1 DE 602005019373 D1 DE602005019373 D1 DE 602005019373D1 DE 602005019373 T DE602005019373 T DE 602005019373T DE 602005019373 T DE602005019373 T DE 602005019373T DE 602005019373 D1 DE602005019373 D1 DE 602005019373D1
Authority
DE
Germany
Prior art keywords
rod
liquid crystal
crystal display
light transmission
shaped light
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.)
Active
Application number
DE602005019373T
Other languages
English (en)
Inventor
Satoshi Maeda
Hirokazu Aritake
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE602005019373D1 publication Critical patent/DE602005019373D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G02B6/0013—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
    • G02B6/0038—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
    • G02B6/0035—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
    • 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
DE602005019373T 2004-12-28 2005-03-31 Stabförmiger Licht-Transmissionkörper, Beleuchtungsvorrichtung und Flüssigkristallanzeigevorrichtung Active DE602005019373D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004378566A JP4553726B2 (ja) 2004-12-28 2004-12-28 棒状導光体、照明装置及び液晶表示装置

Publications (1)

Publication Number Publication Date
DE602005019373D1 true DE602005019373D1 (de) 2010-04-01

Family

ID=35219418

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005019373T Active DE602005019373D1 (de) 2004-12-28 2005-03-31 Stabförmiger Licht-Transmissionkörper, Beleuchtungsvorrichtung und Flüssigkristallanzeigevorrichtung

Country Status (7)

Country Link
US (1) US7210840B2 (de)
EP (1) EP1677048B1 (de)
JP (1) JP4553726B2 (de)
KR (1) KR100706153B1 (de)
CN (1) CN100409077C (de)
DE (1) DE602005019373D1 (de)
TW (1) TWI302216B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI255924B (en) * 2005-03-16 2006-06-01 Au Optronics Corp Backlight module and brightness enhancement film thereof
KR101446951B1 (ko) 2007-07-19 2014-10-06 삼성디스플레이 주식회사 광 가이드 바, 선광원장치, 면광원장치, 및 디스플레이장치
JP5225015B2 (ja) * 2007-10-19 2013-07-03 富士フイルム株式会社 導光板
DE102008034052B4 (de) * 2008-07-22 2019-08-14 HELLA GmbH & Co. KGaA Lichtleitkörper zur Anwendung als Positionslicht oder als Tagfahrlicht für ein Kraftfahrzeug
CN101832505A (zh) * 2009-03-13 2010-09-15 富士迈半导体精密工业（上海）有限公司 照明装置
JP6094238B2 (ja) * 2013-02-01 2017-03-15 市光工業株式会社 車両用灯具
TWI550327B (zh) * 2015-12-11 2016-09-21 友達光電股份有限公司 背光模組

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US172032A (en) * 1876-01-11 Improvement in presses for stamping and embossing soap
JPH07325208A (ja) 1994-05-31 1995-12-12 Canon Inc プリズムシート、該プリズムシートを備えた液晶表示装置、及び該液晶表示装置を備えた情報伝達装置
DE69736578T2 (de) 1996-02-07 2007-08-30 Nitto Jushi Kogyo K.K. Flächenhafte lichtquelle, flüssigkristallanzeigevorrichtung und asymmetrische prismenplatte
JPH10214035A (ja) 1997-01-30 1998-08-11 Canon Inc バックライト装置及びこれを用いた液晶表示装置
US6356391B1 (en) 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
EP1238227A1 (de) * 1999-12-02 2002-09-11 Reflexite Corporation Asymmetrische alternierende prismenarrays
CN1272755C (zh) * 2001-05-14 2006-08-30 日亚化学工业株式会社 发光装置及车辆用显示装置
JP4671562B2 (ja) * 2001-08-31 2011-04-20 富士通株式会社 照明装置及び液晶表示装置
JP2003255343A (ja) * 2002-03-05 2003-09-10 Citizen Electronics Co Ltd カラー液晶表示装置のフロントライト
JP4205932B2 (ja) * 2002-11-19 2009-01-07 アルプス電気株式会社 照明装置及び液晶表示装置
AU2002349657A1 (en) * 2002-11-29 2004-06-23 Fujitsu Limited Illumination device and liquid crystal display device
JP2004335434A (ja) * 2003-03-12 2004-11-25 Fujitsu Kasei Kk 面照明装置と液晶表示装置と光源装置
JP4336878B2 (ja) * 2003-05-20 2009-09-30 日本電気株式会社 導光体、光源装置、表示装置及びこれを備えた情報端末

Also Published As

Publication number Publication date
TW200622435A (en) 2006-07-01
EP1677048A1 (de) 2006-07-05
KR100706153B1 (ko) 2007-04-11
EP1677048B1 (de) 2010-02-17
US20060139950A1 (en) 2006-06-29
JP2006185764A (ja) 2006-07-13
KR20060076148A (ko) 2006-07-04
CN1797120A (zh) 2006-07-05
CN100409077C (zh) 2008-08-06
US7210840B2 (en) 2007-05-01
TWI302216B (en) 2008-10-21
JP4553726B2 (ja) 2010-09-29

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