DE60301983D1 - Oberflächenemittierende Beleuchtungsvorrichtung für eine Flüssigkristallanzeige - Google Patents

Oberflächenemittierende Beleuchtungsvorrichtung für eine Flüssigkristallanzeige

Info

Publication number
DE60301983D1
DE60301983D1 DE60301983T DE60301983T DE60301983D1 DE 60301983 D1 DE60301983 D1 DE 60301983D1 DE 60301983 T DE60301983 T DE 60301983T DE 60301983 T DE60301983 T DE 60301983T DE 60301983 D1 DE60301983 D1 DE 60301983D1
Authority
DE
Germany
Prior art keywords
liquid crystal
crystal display
illumination device
surface emitting
emitting illumination
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
DE60301983T
Other languages
English (en)
Other versions
DE60301983T2 (de
Inventor
Mitsuru Kano
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of DE60301983D1 publication Critical patent/DE60301983D1/de
Application granted granted Critical
Publication of DE60301983T2 publication Critical patent/DE60301983T2/de
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
    • G02B6/0013—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
    • G02B6/0013—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
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough 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
    • G02B6/0013—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
    • G02B6/0018—Redirecting means 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
    • G02B6/0033—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

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)
  • Liquid Crystal (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Light Guides In General And Applications Therefor (AREA)
DE60301983T 2002-02-27 2003-02-26 Oberflächenemittierende Beleuchtungsvorrichtung für eine Flüssigkristallanzeige Expired - Fee Related DE60301983T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002052280A JP2003257229A (ja) 2002-02-27 2002-02-27 バックライトとフロントライト及び液晶表示装置
JP2002052280 2002-02-27

Publications (2)

Publication Number Publication Date
DE60301983D1 true DE60301983D1 (de) 2005-12-01
DE60301983T2 DE60301983T2 (de) 2006-07-13

Family

ID=27678531

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60301983T Expired - Fee Related DE60301983T2 (de) 2002-02-27 2003-02-26 Oberflächenemittierende Beleuchtungsvorrichtung für eine Flüssigkristallanzeige

Country Status (6)

Country Link
US (1) US7206040B2 (de)
EP (1) EP1341030B1 (de)
JP (1) JP2003257229A (de)
KR (1) KR20030071503A (de)
CN (1) CN1182430C (de)
DE (1) DE60301983T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN112203887A (zh) * 2018-04-13 2021-01-08 贝洱海拉温控系统有限公司 特别是用于运载工具的显示设备

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JP5624522B2 (ja) * 2011-07-19 2014-11-12 株式会社東芝 表示装置及びその製造方法
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Publication number Priority date Publication date Assignee Title
CN112203887A (zh) * 2018-04-13 2021-01-08 贝洱海拉温控系统有限公司 特别是用于运载工具的显示设备

Also Published As

Publication number Publication date
EP1341030B1 (de) 2005-10-26
EP1341030A1 (de) 2003-09-03
CN1182430C (zh) 2004-12-29
DE60301983T2 (de) 2006-07-13
US20030160911A1 (en) 2003-08-28
CN1441298A (zh) 2003-09-10
JP2003257229A (ja) 2003-09-12
US7206040B2 (en) 2007-04-17
KR20030071503A (ko) 2003-09-03

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