DE3853242T2 - Leuchte und diese verwendender Anzeigeschirm. - Google Patents

Leuchte und diese verwendender Anzeigeschirm.

Info

Publication number
DE3853242T2
DE3853242T2 DE3853242T DE3853242T DE3853242T2 DE 3853242 T2 DE3853242 T2 DE 3853242T2 DE 3853242 T DE3853242 T DE 3853242T DE 3853242 T DE3853242 T DE 3853242T DE 3853242 T2 DE3853242 T2 DE 3853242T2
Authority
DE
Germany
Prior art keywords
luminaire
display screen
screen
display
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
DE3853242T
Other languages
English (en)
Other versions
DE3853242D1 (de
Inventor
Hirofumi Iwamoto
Takashi Yamamoto
Yoshihiro Onitsuka
Tadashi Kizuki Haitsu - Mihara
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP62235993A external-priority patent/JP2622122B2/ja
Priority claimed from JP62265999A external-priority patent/JP2791021B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE3853242D1 publication Critical patent/DE3853242D1/de
Publication of DE3853242T2 publication Critical patent/DE3853242T2/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
    • G02B6/0035—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
    • G02B6/005—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
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • 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
    • 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
    • G02B6/0093—Means for protecting the light guide
DE3853242T 1987-09-19 1988-09-16 Leuchte und diese verwendender Anzeigeschirm. Expired - Fee Related DE3853242T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62235993A JP2622122B2 (ja) 1987-09-19 1987-09-19 照明装置及びこれを用いた表示パネル
JP62265999A JP2791021B2 (ja) 1987-10-21 1987-10-21 表示装置

Publications (2)

Publication Number Publication Date
DE3853242D1 DE3853242D1 (de) 1995-04-13
DE3853242T2 true DE3853242T2 (de) 1995-08-03

Family

ID=26532437

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3853242T Expired - Fee Related DE3853242T2 (de) 1987-09-19 1988-09-16 Leuchte und diese verwendender Anzeigeschirm.

Country Status (3)

Country Link
US (1) US5046826A (de)
EP (1) EP0308828B1 (de)
DE (1) DE3853242T2 (de)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
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JPH03107821A (ja) * 1989-09-21 1991-05-08 Nippon Steel Corp 液晶ディスプレイ装置
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JP2548677Y2 (ja) * 1991-05-10 1997-09-24 シャープ株式会社 液晶用照明装置
US5359503A (en) * 1991-06-24 1994-10-25 Mitsubishi Denki Kabushiki Kaisha Surface luminous lighting unit
JPH05142535A (ja) * 1991-08-29 1993-06-11 Meitaku Syst:Kk エツジライトパネルの入射光供給装置
US5272601A (en) * 1991-09-06 1993-12-21 Rockwell International Corporation Backlighting for liquid crystal displays
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DE69217177T2 (de) * 1991-11-28 1997-05-15 Enplas Corp Flächenartige Lichtquelle
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JP2566449Y2 (ja) * 1991-12-11 1998-03-25 シャープ株式会社 液晶表示装置
JP2823993B2 (ja) * 1992-08-03 1998-11-11 シャープ株式会社 液晶表示装置
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US5929951A (en) * 1994-10-21 1999-07-27 Canon Kabushiki Kaisha Illumination device and display apparatus including same
WO1996017207A1 (en) * 1994-11-29 1996-06-06 Precision Lamp, Inc. Edge light for panel display
JPH08201805A (ja) * 1995-01-31 1996-08-09 Minolta Co Ltd 液晶表示面の照明構造
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US5808597A (en) * 1995-03-08 1998-09-15 Canon Kabushiki Kaisha Illumination device for liquid crystal display apparatus
JP3682313B2 (ja) * 1995-03-08 2005-08-10 日東樹脂工業株式会社 面光源装置及び液晶ディスプレイ
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JP2001202817A (ja) * 2000-01-19 2001-07-27 Advanced Display Inc 平面型表示装置
DE10011516A1 (de) * 2000-03-09 2001-09-20 Siteco Beleuchtungstech Gmbh Leuchtensystem
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JP3713596B2 (ja) * 2001-03-26 2005-11-09 ミネベア株式会社 面状照明装置
NZ511255A (en) * 2001-04-20 2003-12-19 Deep Video Imaging Ltd Multi-focal plane display having an optical retarder and a diffuser interposed between its screens
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TW587708U (en) * 2002-12-17 2004-05-11 Hon Hai Prec Ind Co Ltd Large size light guide plate and surface lighting system using the same
JP4029743B2 (ja) * 2003-02-24 2008-01-09 ソニー株式会社 バックライト
NZ526028A (en) * 2003-05-21 2006-02-24 Pure Depth Ltd Backlighting system for display screen utilised to control the distribution of power to at least one light source
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Also Published As

Publication number Publication date
EP0308828B1 (de) 1995-03-08
EP0308828A3 (de) 1991-03-13
EP0308828A2 (de) 1989-03-29
US5046826A (en) 1991-09-10
DE3853242D1 (de) 1995-04-13

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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