ATE177832T1 - Flächige beleuchtungsvorrichtung und mit solcher vorrichtung versehenes anzeigegerät - Google Patents
Flächige beleuchtungsvorrichtung und mit solcher vorrichtung versehenes anzeigegerätInfo
- Publication number
- ATE177832T1 ATE177832T1 AT92120738T AT92120738T ATE177832T1 AT E177832 T1 ATE177832 T1 AT E177832T1 AT 92120738 T AT92120738 T AT 92120738T AT 92120738 T AT92120738 T AT 92120738T AT E177832 T1 ATE177832 T1 AT E177832T1
- Authority
- AT
- Austria
- Prior art keywords
- flat lighting
- lighting device
- display device
- display
- light guide
- Prior art date
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
- 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
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/009—Positioning aspects of the light source in the package
-
- 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
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0418—Constructional details
- G09F13/0454—Slidable panels or parts
-
- 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
- G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
-
- 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
-
- 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
- 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
- G09F2013/1827—Prismatic window
-
- 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
- G09F2013/1831—Achieving homogeneous illumination using more than one light source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S385/00—Optical waveguides
- Y10S385/901—Illuminating or display apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3348565A JP3023026B2 (ja) | 1991-12-06 | 1991-12-06 | 面照明装置 |
JP4151225A JPH05323316A (ja) | 1992-05-20 | 1992-05-20 | バックライト装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE177832T1 true ATE177832T1 (de) | 1999-04-15 |
Family
ID=26480539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT92120738T ATE177832T1 (de) | 1991-12-06 | 1992-12-04 | Flächige beleuchtungsvorrichtung und mit solcher vorrichtung versehenes anzeigegerät |
Country Status (4)
Country | Link |
---|---|
US (2) | US5438484A (de) |
EP (1) | EP0545429B1 (de) |
AT (1) | ATE177832T1 (de) |
DE (1) | DE69228655T2 (de) |
Families Citing this family (66)
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EP0607930B1 (de) * | 1993-01-19 | 2008-11-19 | Canon Kabushiki Kaisha | Längliche Beleuchtungsvorrichtung und Informationsauslesevorrichtung, die eine solche Beleuchtungsvorrichtung aufweist |
US6426807B1 (en) | 1993-01-19 | 2002-07-30 | Canon Kabushiki Kaisha | Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device |
JPH06314069A (ja) * | 1993-03-03 | 1994-11-08 | Fujitsu Ltd | 照明装置 |
BE1007433A3 (nl) * | 1993-07-30 | 1995-06-13 | Philips Electronics Nv | Platte beeldweergeefinrichting, belichtingsstelsel en stralingsbron geschikt voor toepassing in een dergelijke platte beeldweergeefinrichting. |
JP2778659B2 (ja) * | 1993-12-24 | 1998-07-23 | キヤノン株式会社 | 導光体及び照明装置及び画像読取装置 |
JP3256625B2 (ja) * | 1994-05-18 | 2002-02-12 | 三菱電機株式会社 | 液晶表示装置 |
JP3538220B2 (ja) * | 1994-05-25 | 2004-06-14 | 株式会社エンプラス | コーナー部光供給型面光源装置 |
US5796450A (en) * | 1994-12-16 | 1998-08-18 | Canon Kabushiki Kaisha | Illumination device and liquid crystal display apparatus including same |
TW344032B (en) * | 1995-01-27 | 1998-11-01 | Mitsui Toatsu Chemicals | Light reflective sheet and light reflector using it |
US5808707A (en) * | 1995-03-01 | 1998-09-15 | Canon Kabushiki Kaisha | Display apparatus |
US5808597A (en) * | 1995-03-08 | 1998-09-15 | Canon Kabushiki Kaisha | Illumination device for liquid crystal display apparatus |
US7108414B2 (en) | 1995-06-27 | 2006-09-19 | Solid State Opto Limited | Light emitting panel assemblies |
DE69636109T2 (de) * | 1995-11-06 | 2006-09-21 | Seiko Epson Corp. | Beleuchtungsvorrichtung, diese beinhaltende Flüssigkristallanzeige und elektronisches Gerät |
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JP5571885B2 (ja) * | 2008-03-19 | 2014-08-13 | 三星ディスプレイ株式會社 | 液晶表示装置とその製造方法 |
JP5077052B2 (ja) * | 2008-04-28 | 2012-11-21 | 富士通株式会社 | 携帯端末装置 |
JP4720869B2 (ja) | 2008-08-01 | 2011-07-13 | エプソンイメージングデバイス株式会社 | バックライトユニット、電気光学装置及び電子機器 |
KR101493706B1 (ko) * | 2008-12-24 | 2015-02-16 | 엘지디스플레이 주식회사 | 액정표시장치용 백라이트 유닛 |
KR101507739B1 (ko) * | 2008-12-26 | 2015-04-08 | 삼성디스플레이 주식회사 | 액정 표시 장치와 그 제조 방법 |
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KR101948169B1 (ko) * | 2011-12-23 | 2019-02-14 | 엘지디스플레이 주식회사 | 백라이트 유닛과 이를 이용한 액정표시장치 |
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JP2640578B2 (ja) * | 1991-02-27 | 1997-08-13 | シャープ株式会社 | 液晶用照明装置 |
US5222171A (en) * | 1991-10-21 | 1993-06-22 | Jozef Straus | Fused optical fiber splice element |
US5143433A (en) * | 1991-11-01 | 1992-09-01 | Litton Systems Canada Limited | Night vision backlighting system for liquid crystal displays |
-
1992
- 1992-12-03 US US07/984,836 patent/US5438484A/en not_active Expired - Lifetime
- 1992-12-04 AT AT92120738T patent/ATE177832T1/de not_active IP Right Cessation
- 1992-12-04 DE DE69228655T patent/DE69228655T2/de not_active Expired - Fee Related
- 1992-12-04 EP EP92120738A patent/EP0545429B1/de not_active Expired - Lifetime
-
1995
- 1995-01-17 US US08/373,096 patent/US5664873A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0545429A2 (de) | 1993-06-09 |
EP0545429A3 (en) | 1993-10-27 |
DE69228655T2 (de) | 1999-10-21 |
EP0545429B1 (de) | 1999-03-17 |
US5664873A (en) | 1997-09-09 |
US5438484A (en) | 1995-08-01 |
DE69228655D1 (de) | 1999-04-22 |
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