DE60236395D1 - Flache Lichtquelleneinrichtung - Google Patents

Flache Lichtquelleneinrichtung

Info

Publication number
DE60236395D1
DE60236395D1 DE60236395T DE60236395T DE60236395D1 DE 60236395 D1 DE60236395 D1 DE 60236395D1 DE 60236395 T DE60236395 T DE 60236395T DE 60236395 T DE60236395 T DE 60236395T DE 60236395 D1 DE60236395 D1 DE 60236395D1
Authority
DE
Germany
Prior art keywords
light source
source device
flat light
flat
source
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 - Lifetime
Application number
DE60236395T
Other languages
English (en)
Inventor
Yasuhiro Tanoue
Masayuki Shinohara
Junichi Takagi
Junichiro Tsuji
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.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
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 Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Application granted granted Critical
Publication of DE60236395D1 publication Critical patent/DE60236395D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02B6/0023—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
    • G02B6/0031—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
    • G02B6/0033—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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened 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
    • G02B6/0033—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
    • G02B6/005—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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement 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
    • G02B6/0033—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
    • G02B6/0033—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
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube

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)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Elements Other Than Lenses (AREA)
DE60236395T 2001-09-21 2002-09-17 Flache Lichtquelleneinrichtung Expired - Lifetime DE60236395D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001290044A JP3928395B2 (ja) 2001-09-21 2001-09-21 面光源装置

Publications (1)

Publication Number Publication Date
DE60236395D1 true DE60236395D1 (de) 2010-07-01

Family

ID=19112441

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60236395T Expired - Lifetime DE60236395D1 (de) 2001-09-21 2002-09-17 Flache Lichtquelleneinrichtung

Country Status (7)

Country Link
US (1) US6967698B2 (de)
EP (1) EP1296094B1 (de)
JP (1) JP3928395B2 (de)
KR (1) KR100483209B1 (de)
CN (1) CN1220907C (de)
DE (1) DE60236395D1 (de)
TW (1) TWI222533B (de)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003150073A (ja) * 2001-08-27 2003-05-21 Omron Corp 画像表示装置及びフロントライト
JP2003262734A (ja) * 2002-03-08 2003-09-19 Citizen Electronics Co Ltd 導光板
TWI289708B (en) 2002-12-25 2007-11-11 Qualcomm Mems Technologies Inc Optical interference type color display
US7417782B2 (en) 2005-02-23 2008-08-26 Pixtronix, Incorporated Methods and apparatus for spatial light modulation
US7009213B2 (en) * 2003-07-31 2006-03-07 Lumileds Lighting U.S., Llc Light emitting devices with improved light extraction efficiency
US7342705B2 (en) 2004-02-03 2008-03-11 Idc, Llc Spatial light modulator with integrated optical compensation structure
CN100562686C (zh) * 2004-02-20 2009-11-25 欧姆龙株式会社 面光源装置
US7706050B2 (en) 2004-03-05 2010-04-27 Qualcomm Mems Technologies, Inc. Integrated modulator illumination
JP4397728B2 (ja) * 2004-04-21 2010-01-13 日東電工株式会社 直下型バックライト
US7710636B2 (en) 2004-09-27 2010-05-04 Qualcomm Mems Technologies, Inc. Systems and methods using interferometric optical modulators and diffusers
US7750886B2 (en) 2004-09-27 2010-07-06 Qualcomm Mems Technologies, Inc. Methods and devices for lighting displays
US7813026B2 (en) 2004-09-27 2010-10-12 Qualcomm Mems Technologies, Inc. System and method of reducing color shift in a display
WO2006035391A1 (en) * 2004-09-30 2006-04-06 Koninklijke Philips Electronics N.V. Brightness enhancement of led using selective ray angular recycling
US20060104089A1 (en) * 2004-11-18 2006-05-18 Tsinghua University Light guide plate and a backlight module using the same
US9229222B2 (en) 2005-02-23 2016-01-05 Pixtronix, Inc. Alignment methods in fluid-filled MEMS displays
US9158106B2 (en) 2005-02-23 2015-10-13 Pixtronix, Inc. Display methods and apparatus
US7746529B2 (en) 2005-02-23 2010-06-29 Pixtronix, Inc. MEMS display apparatus
US9261694B2 (en) 2005-02-23 2016-02-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US20070205969A1 (en) 2005-02-23 2007-09-06 Pixtronix, Incorporated Direct-view MEMS display devices and methods for generating images thereon
US8482496B2 (en) 2006-01-06 2013-07-09 Pixtronix, Inc. Circuits for controlling MEMS display apparatus on a transparent substrate
US7999994B2 (en) 2005-02-23 2011-08-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US9082353B2 (en) 2010-01-05 2015-07-14 Pixtronix, Inc. Circuits for controlling display apparatus
US8159428B2 (en) 2005-02-23 2012-04-17 Pixtronix, Inc. Display methods and apparatus
US8519945B2 (en) 2006-01-06 2013-08-27 Pixtronix, Inc. Circuits for controlling display apparatus
US8310442B2 (en) 2005-02-23 2012-11-13 Pixtronix, Inc. Circuits for controlling display apparatus
JP4672006B2 (ja) * 2005-03-01 2011-04-20 シャープ株式会社 バックライトユニットおよび液晶表示装置
JP4789139B2 (ja) * 2005-05-11 2011-10-12 日東電工株式会社 液晶パネルおよびそれを用いた液晶表示装置
JP2006339320A (ja) * 2005-05-31 2006-12-14 Omron Corp 発光光源及び発光光源における光の出射方法
JP2007047545A (ja) * 2005-08-11 2007-02-22 Omron Corp 液晶表示装置、面光源装置及び情報機器
DE102005051965A1 (de) * 2005-10-29 2007-05-03 GM Global Technology Operations, Inc., Detroit Kraftfahrzeug und Anzeigevorrichtung
JP4600269B2 (ja) * 2005-12-21 2010-12-15 カシオ計算機株式会社 液晶表示装置
US8526096B2 (en) 2006-02-23 2013-09-03 Pixtronix, Inc. Mechanical light modulators with stressed beams
US7876489B2 (en) 2006-06-05 2011-01-25 Pixtronix, Inc. Display apparatus with optical cavities
US7766498B2 (en) 2006-06-21 2010-08-03 Qualcomm Mems Technologies, Inc. Linear solid state illuminator
US7845841B2 (en) 2006-08-28 2010-12-07 Qualcomm Mems Technologies, Inc. Angle sweeping holographic illuminator
EP1903358A1 (de) 2006-09-22 2008-03-26 Centro Ricerche Plast-Optica S.r.l. Beleuchtungseinrichtung mit Lichtleiter und Mitteln zum Umlenken von aus dem Lichtleiter ausgekoppelten Licht
US8107155B2 (en) * 2006-10-06 2012-01-31 Qualcomm Mems Technologies, Inc. System and method for reducing visual artifacts in displays
EP1943551A2 (de) 2006-10-06 2008-07-16 Qualcomm Mems Technologies, Inc. Lichtführung
US7855827B2 (en) 2006-10-06 2010-12-21 Qualcomm Mems Technologies, Inc. Internal optical isolation structure for integrated front or back lighting
WO2008045311A2 (en) 2006-10-06 2008-04-17 Qualcomm Mems Technologies, Inc. Illumination device with built-in light coupler
ATE556272T1 (de) 2006-10-06 2012-05-15 Qualcomm Mems Technologies Inc Optische verluststruktur in einer beleuchtungsvorrichtung
US20100103488A1 (en) 2006-10-10 2010-04-29 Qualcomm Mems Technologies, Inc. Display device with diffractive optics
WO2008051362A1 (en) 2006-10-20 2008-05-02 Pixtronix, Inc. Light guides and backlight systems incorporating light redirectors at varying densities
US7864395B2 (en) 2006-10-27 2011-01-04 Qualcomm Mems Technologies, Inc. Light guide including optical scattering elements and a method of manufacture
WO2008049377A1 (fr) * 2006-10-27 2008-05-02 Shaohua Ren Source de lumière de surface ayant une surface réfléchissante incurvée pour l'éclairage
US20100085511A1 (en) * 2006-11-20 2010-04-08 Hisashi Watanabe Display device
US9176318B2 (en) 2007-05-18 2015-11-03 Pixtronix, Inc. Methods for manufacturing fluid-filled MEMS displays
US7852546B2 (en) 2007-10-19 2010-12-14 Pixtronix, Inc. Spacers for maintaining display apparatus alignment
US7777954B2 (en) 2007-01-30 2010-08-17 Qualcomm Mems Technologies, Inc. Systems and methods of providing a light guiding layer
US7733439B2 (en) 2007-04-30 2010-06-08 Qualcomm Mems Technologies, Inc. Dual film light guide for illuminating displays
US20080298085A1 (en) * 2007-05-31 2008-12-04 Sheng-Hui Chiang Backlight module with uniform brightness
WO2008149919A1 (ja) 2007-06-05 2008-12-11 Asahi Kasei E-Materials Corporation 反射シート
US20090005685A1 (en) * 2007-06-29 2009-01-01 Canon Kabushiki Kaisha Ultrasonic probe and inspection apparatus equipped with the ultrasonic probe
JP5238222B2 (ja) 2007-10-31 2013-07-17 株式会社東芝 画像表示装置、画像表示方法及び画像処理装置
US7949213B2 (en) 2007-12-07 2011-05-24 Qualcomm Mems Technologies, Inc. Light illumination of displays with front light guide and coupling elements
US8068710B2 (en) 2007-12-07 2011-11-29 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
WO2009099547A2 (en) * 2008-01-30 2009-08-13 Digital Optics International, Llc Thin illumination system
US8721149B2 (en) 2008-01-30 2014-05-13 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
WO2009100560A1 (zh) * 2008-01-31 2009-08-20 Dingguo Pan 变截面不等边直角三角形棱镜圆盘形反光板和用它制成的灯具
WO2009102731A2 (en) 2008-02-12 2009-08-20 Qualcomm Mems Technologies, Inc. Devices and methods for enhancing brightness of displays using angle conversion layers
US8654061B2 (en) 2008-02-12 2014-02-18 Qualcomm Mems Technologies, Inc. Integrated front light solution
WO2009102733A2 (en) 2008-02-12 2009-08-20 Qualcomm Mems Technologies, Inc. Integrated front light diffuser for reflective displays
GB2457690A (en) * 2008-02-21 2009-08-26 Sharp Kk Viewer position tracking display
US8248560B2 (en) 2008-04-18 2012-08-21 Pixtronix, Inc. Light guides and backlight systems incorporating prismatic structures and light redirectors
WO2009129264A1 (en) 2008-04-15 2009-10-22 Qualcomm Mems Technologies, Inc. Light with bi-directional propagation
CN101566312B (zh) * 2008-04-24 2011-03-30 达方电子股份有限公司 导光结构及其制造方法与应用其的发光键盘
US8118468B2 (en) 2008-05-16 2012-02-21 Qualcomm Mems Technologies, Inc. Illumination apparatus and methods
EP2291694A2 (de) 2008-05-28 2011-03-09 QUALCOMM MEMS Technologies, Inc. Lichtleiterplatte mit lichtdrehungsmikrostruktur, verfahren zu ihrer herstellung und anzeigevorrichtung damit
TW200951560A (en) * 2008-06-06 2009-12-16 Univ Nat Taiwan Composite light guiding curved surface structure
JP4900439B2 (ja) 2008-10-01 2012-03-21 三菱電機株式会社 面状光源装置およびこれを用いた表示装置
US8169679B2 (en) 2008-10-27 2012-05-01 Pixtronix, Inc. MEMS anchors
US8172417B2 (en) 2009-03-06 2012-05-08 Qualcomm Mems Technologies, Inc. Shaped frontlight reflector for use with display
CN102449513B (zh) 2009-05-29 2015-01-21 高通Mems科技公司 照明装置及其制造方法
BR112012019383A2 (pt) 2010-02-02 2017-09-12 Pixtronix Inc Circuitos para controlar aparelho de exibição
KR20120132680A (ko) 2010-02-02 2012-12-07 픽스트로닉스 인코포레이티드 저온 실 유체 충전된 디스플레이 장치의 제조 방법
US8902484B2 (en) 2010-12-15 2014-12-02 Qualcomm Mems Technologies, Inc. Holographic brightness enhancement film
TWI442110B (zh) 2011-01-26 2014-06-21 Coretronic Corp 導光板及光源模組
TWI452359B (zh) 2011-04-29 2014-09-11 Coretronic Corp 導光板與光源模組
KR20130059140A (ko) * 2011-11-28 2013-06-05 주식회사 엘에스텍 백라이트장치
TWI539211B (zh) * 2012-04-30 2016-06-21 中強光電股份有限公司 導光板及使用導光板之背光模組
CN104006353A (zh) * 2013-02-22 2014-08-27 扬升照明股份有限公司 反射片、光源模块与显示装置
US9134552B2 (en) 2013-03-13 2015-09-15 Pixtronix, Inc. Display apparatus with narrow gap electrostatic actuators
JP2018522367A (ja) * 2015-05-13 2018-08-09 コーニング インコーポレイテッド ホットスポットを減少した導光体およびその製造方法
JPWO2016185684A1 (ja) * 2015-05-18 2017-12-14 パナソニックＩｐマネジメント株式会社 光学デバイス
US20190018186A1 (en) * 2016-01-30 2019-01-17 Leia Inc. Privacy display and dual-mode privacy display system
IL263519B (en) * 2018-12-05 2022-07-01 Elbit Systems Ltd Optics for monitor lighting
US10948310B2 (en) * 2018-12-10 2021-03-16 Dish Network L.L.C. Location-based in-vehicle restaurant menu
US11460627B2 (en) 2019-12-17 2022-10-04 Coretronic Corporation Backlight module
CN112987395B (zh) * 2019-12-17 2024-03-08 中强光电股份有限公司 背光模块

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04329522A (ja) * 1991-05-01 1992-11-18 Sharp Corp 液晶用照明装置
JPH05196820A (ja) * 1992-01-22 1993-08-06 Hitachi Ltd バックライト導光板
US5485354A (en) * 1993-09-09 1996-01-16 Precision Lamp, Inc. Flat panel display lighting system
US6305811B1 (en) * 1998-09-25 2001-10-23 Honeywell International Inc. Illumination system having an array of linear prisms
JP2001035222A (ja) * 1999-07-23 2001-02-09 Minebea Co Ltd 面状照明装置
JP2001051272A (ja) * 1999-08-11 2001-02-23 Semiconductor Energy Lab Co Ltd フロントライト及び電子機器
JP3457591B2 (ja) * 1999-10-08 2003-10-20 インターナショナル・ビジネス・マシーンズ・コーポレーション 液晶表示装置
JP2001229725A (ja) * 2000-02-16 2001-08-24 Citizen Electronics Co Ltd 導光板
JP2002131552A (ja) 2000-10-24 2002-05-09 Nitto Denko Corp 導光板、面光源装置及び反射型液晶表示装置

Also Published As

Publication number Publication date
CN1410817A (zh) 2003-04-16
CN1220907C (zh) 2005-09-28
TWI222533B (en) 2004-10-21
KR100483209B1 (ko) 2005-04-15
EP1296094B1 (de) 2010-05-19
EP1296094A1 (de) 2003-03-26
US20030058382A1 (en) 2003-03-27
JP2003100129A (ja) 2003-04-04
KR20030025817A (ko) 2003-03-29
US6967698B2 (en) 2005-11-22
JP3928395B2 (ja) 2007-06-13

Similar Documents

Publication Publication Date Title
DE60236395D1 (de) Flache Lichtquelleneinrichtung
DE60130520D1 (de) Lichtquelle
DE60323780D1 (de) Beleuchtungsvorrichtung
DE60237686D1 (de) Lichtprojektor
DE60303328D1 (de) Ringförmige Lichtquelle
NO20040925L (no) Flat belysningsanordning.
DE50113389D1 (de) Lichtquelle
DE60223313D1 (de) Lichtquellenvorrichtung
DE60207131D1 (de) Lichtquellenvorrichtung
DE60305807D1 (de) Beleuchtungsvorrichtung
NO20013324L (no) Flat lyskilde
DE60221941D1 (de) Lichtquellenvorrichtung
DE60209048T8 (de) Weisslichtquelle
DE50211445D1 (de) Beleuchtungseinrichtung
DE50307713D1 (de) Leuchtenvorrichtung
NO20020533L (no) Lysbane
ITMI20022498A1 (it) Apparecchio di illuminazione
ES1052605Y (es) Dispositivo de alumbrado
DE60044013D1 (de) Lichtquellen vorrichtung
DE50300036D1 (de) Beleuchtungseinrichtung
SE0202191L (sv) Optisk anordning
SE0203511L (sv) Optisk anordning
DE50302172D1 (de) Beleuchtungseinrichtung
DE60214536D1 (de) Optisches Gerät
DE60320195D1 (de) Beleuchtungsvorrichtung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition