DE69212662T2 - Vorrichtung zur Hinterbeleuchtung - Google Patents

Vorrichtung zur Hinterbeleuchtung

Info

Publication number
DE69212662T2
DE69212662T2 DE69212662T DE69212662T DE69212662T2 DE 69212662 T2 DE69212662 T2 DE 69212662T2 DE 69212662 T DE69212662 T DE 69212662T DE 69212662 T DE69212662 T DE 69212662T DE 69212662 T2 DE69212662 T2 DE 69212662T2
Authority
DE
Germany
Prior art keywords
backlighting device
backlighting
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
DE69212662T
Other languages
English (en)
Other versions
DE69212662D1 (de
Inventor
Keiji Kashima
Naoki Yoshida
Osamu Shoji
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.)
Tosoh Corp
Original Assignee
Tosoh 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
Priority claimed from JP3078695A external-priority patent/JP2730310B2/ja
Priority claimed from JP3067699A external-priority patent/JPH04280225A/ja
Application filed by Tosoh Corp filed Critical Tosoh Corp
Application granted granted Critical
Publication of DE69212662D1 publication Critical patent/DE69212662D1/de
Publication of DE69212662T2 publication Critical patent/DE69212662T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/1804—Achieving homogeneous illumination
    • G09F2013/1809—Achieving homogeneous illumination using a non-homogeneous front window
    • G09F2013/1813—Achieving homogeneous illumination using a non-homogeneous front window provided with a coating showing a pattern of dots of variable density
DE69212662T 1991-02-21 1992-02-20 Vorrichtung zur Hinterbeleuchtung Expired - Fee Related DE69212662T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3078695A JP2730310B2 (ja) 1991-02-21 1991-02-21 パネル用バックライト
JP3067699A JPH04280225A (ja) 1991-03-08 1991-03-08 バックライト

Publications (2)

Publication Number Publication Date
DE69212662D1 DE69212662D1 (de) 1996-09-19
DE69212662T2 true DE69212662T2 (de) 1997-02-20

Family

ID=26408917

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69212662T Expired - Fee Related DE69212662T2 (de) 1991-02-21 1992-02-20 Vorrichtung zur Hinterbeleuchtung

Country Status (3)

Country Link
US (1) US5262928A (de)
EP (1) EP0500089B1 (de)
DE (1) DE69212662T2 (de)

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CA2088113C (en) * 1992-01-27 1999-03-30 Tomohiro Yokota Light adjusting sheet for a planar lighting device and a planar lighting device and a liquid crystal display using the sheet
US5988826A (en) * 1993-03-25 1999-11-23 Enplas Corporation Surface light source device
AU6524694A (en) * 1993-03-29 1994-10-24 Precision Lamp, Inc. Flat thin uniform thickness large area light source
US5526146A (en) * 1993-06-24 1996-06-11 International Business Machines Corporation Back-lighting system for transmissive display
JPH07104290A (ja) * 1993-09-30 1995-04-21 Sharp Corp 照明装置およびそれを用いた液晶表示装置
US5521725A (en) * 1993-11-05 1996-05-28 Alliedsignal Inc. Illumination system employing an array of microprisms
US5555329A (en) * 1993-11-05 1996-09-10 Alliesignal Inc. Light directing optical structure
US5428468A (en) * 1993-11-05 1995-06-27 Alliedsignal Inc. Illumination system employing an array of microprisms
US6129439A (en) * 1993-11-05 2000-10-10 Alliedsignal Inc. Illumination system employing an array of multi-faceted microprisms
US5396350A (en) * 1993-11-05 1995-03-07 Alliedsignal Inc. Backlighting apparatus employing an array of microprisms
US5598281A (en) * 1993-11-19 1997-01-28 Alliedsignal Inc. Backlight assembly for improved illumination employing tapered optical elements
US5371656A (en) * 1994-01-07 1994-12-06 Iorfida; Paul Apparatus for displaying an illuminated image and method therefor
TW454922U (en) * 1994-03-23 2001-09-11 Tosoh Corp Rear side irradiation light
JP2742880B2 (ja) * 1994-08-12 1998-04-22 大日本印刷株式会社 面光源、それを用いた表示装置、及びそれらに用いる光拡散シート
EP0717236B1 (de) * 1994-12-16 2001-08-16 Canon Kabushiki Kaisha Beleuchtungsvorrichtung und diese enthaltende Flüssigkristallanzeige
CA2165370C (en) * 1995-02-01 2001-12-11 Mark A. Cracraft Selective back lighting of appliance control panel
US5546687A (en) * 1995-02-27 1996-08-20 Iorfida; Paul Apparatus for displaying an illuminated image including light intensifier and method therefor
US5618095A (en) * 1995-04-04 1997-04-08 Tosoh Corporation Backlighting device
JP3291972B2 (ja) * 1995-05-16 2002-06-17 ソニー株式会社 液晶表示装置およびその製造方法
EP0832392B1 (de) * 1995-06-26 2003-08-13 Minnesota Mining And Manufacturing Company Hintergrundbeleuchtungsvorrichtung mit mehrschichtfilmreflektor
US6712481B2 (en) 1995-06-27 2004-03-30 Solid State Opto Limited Light emitting panel assemblies
US5613751A (en) 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
US7108414B2 (en) 1995-06-27 2006-09-19 Solid State Opto Limited Light emitting panel assemblies
US5947578A (en) * 1995-10-24 1999-09-07 Nu-Tech & Engineering, Inc. Back lighting device
US5895115A (en) * 1996-01-16 1999-04-20 Lumitex, Inc. Light emitting panel assemblies for use in automotive applications and the like
US6164789A (en) * 1996-07-12 2000-12-26 Honeywell International Inc. Illumination sources and systems
JPH10104435A (ja) * 1996-09-27 1998-04-24 Meitaku Syst:Kk エッジライトパネル用バ−光源及びこれを用いた照明標識装置
KR100249679B1 (ko) * 1997-04-10 2000-03-15 구본준 액정표시장치의 백라이트유니트
US5883684A (en) * 1997-06-19 1999-03-16 Three-Five Systems, Inc. Diffusively reflecting shield optically, coupled to backlit lightguide, containing LED's completely surrounded by the shield
JP3056133B2 (ja) * 1997-06-26 2000-06-26 静岡日本電気株式会社 表示装置
US6104455A (en) * 1997-08-27 2000-08-15 Dai Nippon Printing Co., Ltd. Back light device and liquid crystal display apparatus
JPH11352474A (ja) * 1998-06-08 1999-12-24 Sharp Corp 液晶表示装置用バックライト及び液晶表示装置
US6827456B2 (en) 1999-02-23 2004-12-07 Solid State Opto Limited Transreflectors, transreflector systems and displays and methods of making transreflectors
US6752505B2 (en) * 1999-02-23 2004-06-22 Solid State Opto Limited Light redirecting films and film systems
US7364341B2 (en) * 1999-02-23 2008-04-29 Solid State Opto Limited Light redirecting films including non-interlockable optical elements
US6845212B2 (en) * 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
US7046905B1 (en) 1999-10-08 2006-05-16 3M Innovative Properties Company Blacklight with structured surfaces
US6356391B1 (en) 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
US6447135B1 (en) 1999-10-08 2002-09-10 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
US6893135B2 (en) * 2000-03-16 2005-05-17 3M Innovative Properties Company Light guides suitable for illuminated displays
GB0006327D0 (en) * 2000-03-16 2000-05-03 3M Innovative Properties Co Light guides suitable for illuminated displays
GB0031611D0 (en) * 2000-12-21 2001-02-07 Ineos Acrylics Uk Ltd Edge lit illumination devices
US6846098B2 (en) * 2002-05-16 2005-01-25 Eastman Kodak Company Light diffuser with variable diffusion
US20070006493A1 (en) * 2003-05-12 2007-01-11 Arnold Eberwein Illuminated license plate for vehicles and vehicle provided with the same
US20070031641A1 (en) * 2003-09-05 2007-02-08 3M Innovative Properties Company License plate for back illumination and method for making same
EP1584518B1 (de) * 2004-04-07 2007-10-17 3M Innovative Properties Company Kennzeichenschild-Anordnung mit Lichtquelle und hinterleuchtetem Kennzeichenschild
US7367705B2 (en) 2004-11-04 2008-05-06 Solid State Opto Limited Long curved wedges in an optical film
TW200700834A (en) * 2005-06-24 2007-01-01 Innolux Display Corp Light guiding plate and backlight module using the same
GB2433637A (en) * 2005-12-21 2007-06-27 3M Innovative Properties Co Semi-transparent retroreflective material
GB0602105D0 (en) * 2006-02-02 2006-03-15 3M Innovative Properties Co License plate assembly
WO2008153528A1 (en) 2007-06-14 2008-12-18 Avery Dennison Corporation Illuminated graphical and information display
US8436962B2 (en) * 2007-07-27 2013-05-07 Sharp Kabushiki Kaisha Illumination device and liquid crystal display device
US8414173B2 (en) * 2007-07-27 2013-04-09 Sharp Kabushiki Kaisha Illumination device and display device
WO2009017066A1 (ja) 2007-07-27 2009-02-05 Sharp Kabushiki Kaisha 照明装置、表示装置、並びに導光板
WO2009019964A1 (ja) * 2007-08-07 2009-02-12 Sharp Kabushiki Kaisha 照明装置および液晶表示装置
DE102007050271B4 (de) * 2007-10-18 2012-02-02 Noctron Soparfi S.A. Lichtleitereinrichtung sowie Beleuchtungsvorrichtung mit einer solchen Lichtleitereinrichtung
WO2009098809A1 (ja) * 2008-02-05 2009-08-13 Sharp Kabushiki Kaisha 照明装置および液晶表示装置
EP2258976A4 (de) * 2008-05-30 2014-01-15 Sharp Kk Beleuchtungsvorrichtung, anzeigevorrichtung und lichtleitplatte
US8462292B2 (en) 2008-07-31 2013-06-11 Rambus Delaware Llc Optically transmissive substrates and light emitting assemblies and methods of making same, and methods of displaying images using the optically transmissive substrates and light emitting assemblies
JP2010165572A (ja) * 2009-01-16 2010-07-29 Sony Corp 平面発光装置、パネル、および表示装置
US8864360B2 (en) 2011-05-06 2014-10-21 Rambus Delaware Llc Lighting assembly
DE102012207782A1 (de) * 2012-05-10 2013-11-14 Rheinmetall Defence Electronics Gmbh Trainingsraum eines Simulators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523398A1 (de) * 1985-06-29 1987-01-08 Bosch Gmbh Robert Sinterlegierungen auf der basis von schnellarbeitsstaehlen
US4949489A (en) * 1987-12-28 1990-08-21 Rudell Elliot A Edge-lit multiple image display device
JP2595067B2 (ja) * 1988-08-18 1997-03-26 東ソー株式会社 液晶パネル用バックライト
JP2620981B2 (ja) * 1989-09-30 1997-06-18 株式会社 明拓システム 液晶バックライト用エッジライトパネル
US5055978A (en) * 1989-12-29 1991-10-08 Gte Products Corporation Uniform light source

Also Published As

Publication number Publication date
EP0500089A1 (de) 1992-08-26
DE69212662D1 (de) 1996-09-19
US5262928A (en) 1993-11-16
EP0500089B1 (de) 1996-08-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee