JP5273768B2 - バックライトアセンブリ - Google Patents

バックライトアセンブリ Download PDF

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Publication number
JP5273768B2
JP5273768B2 JP2008044691A JP2008044691A JP5273768B2 JP 5273768 B2 JP5273768 B2 JP 5273768B2 JP 2008044691 A JP2008044691 A JP 2008044691A JP 2008044691 A JP2008044691 A JP 2008044691A JP 5273768 B2 JP5273768 B2 JP 5273768B2
Authority
JP
Japan
Prior art keywords
light
inclined surface
light guide
prism pattern
guide plate
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
JP2008044691A
Other languages
English (en)
Japanese (ja)
Other versions
JP2009087916A5 (it
JP2009087916A (ja
Inventor
喜 坤 金
仁 ソン 黄
宅 善 辛
炳 端 尹
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.)
Samsung Display Co Ltd
Original Assignee
Samsung Display 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 Samsung Display Co Ltd filed Critical Samsung Display Co Ltd
Publication of JP2009087916A publication Critical patent/JP2009087916A/ja
Publication of JP2009087916A5 publication Critical patent/JP2009087916A5/ja
Application granted granted Critical
Publication of JP5273768B2 publication Critical patent/JP5273768B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02B6/0058—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
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides

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)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
JP2008044691A 2007-10-02 2008-02-26 バックライトアセンブリ Expired - Fee Related JP5273768B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070099058A KR101365091B1 (ko) 2007-10-02 2007-10-02 백라이트 어셈블리 및 이를 갖는 액정표시장치
KR10-2007-0099058 2007-10-02

Publications (3)

Publication Number Publication Date
JP2009087916A JP2009087916A (ja) 2009-04-23
JP2009087916A5 JP2009087916A5 (it) 2011-04-14
JP5273768B2 true JP5273768B2 (ja) 2013-08-28

Family

ID=40537895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008044691A Expired - Fee Related JP5273768B2 (ja) 2007-10-02 2008-02-26 バックライトアセンブリ

Country Status (3)

Country Link
JP (1) JP5273768B2 (it)
KR (1) KR101365091B1 (it)
CN (1) CN101403834B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10942310B2 (en) 2017-04-27 2021-03-09 Panasonic Intellectual Property Management Co., Ltd. On-board display device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054385B1 (ko) * 2009-11-19 2011-08-04 주식회사 엘엠에스 도광판 및 이를 구비하는 백라이트 유닛
JP5610202B2 (ja) * 2010-06-23 2014-10-22 ミネベア株式会社 面状照明装置
KR102157549B1 (ko) * 2010-10-15 2020-09-21 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
JP5861907B2 (ja) * 2011-04-14 2016-02-16 株式会社クラレ 面光源装置及び画像表示装置
WO2018186413A1 (ja) * 2017-04-04 2018-10-11 株式会社クラレ 導光体、及び面状発光モジュール

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2950219B2 (ja) * 1995-10-13 1999-09-20 オムロン株式会社 面光源装置、当該面光源装置を用いた画像表示装置及び当該面光源装置に用いるプリズムアレイ
JP3644787B2 (ja) * 1996-05-09 2005-05-11 松下電器産業株式会社 面状照明系
US6123431A (en) * 1997-03-19 2000-09-26 Sanyo Electric Co., Ltd Backlight apparatus and light guide plate
KR100271672B1 (ko) * 1998-05-20 2000-11-15 구본준 시이트 구조의 광학소자 및 그를 이용한 백라이트 유니트
JP3434465B2 (ja) * 1999-04-22 2003-08-11 三菱電機株式会社 液晶表示装置用バックライト
US6845212B2 (en) * 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
JP2002109924A (ja) * 2000-09-28 2002-04-12 Toyota Industries Corp 導光板
JP4152605B2 (ja) * 2001-05-30 2008-09-17 株式会社エンプラス 導光板、面光源装置及び液晶ディスプレイ
KR100799156B1 (ko) * 2001-07-13 2008-01-29 삼성전자주식회사 도광판, 이의 제조 방법, 이를 이용한 액정표시장치
JP2003098356A (ja) * 2001-09-20 2003-04-03 Pioneer Electronic Corp 導光板
KR20050042004A (ko) * 2001-10-31 2005-05-04 미쯔비시 가가꾸 가부시끼가이샤 디스플레이 장치
JP2005268201A (ja) * 2004-02-20 2005-09-29 Omron Corp 面光源装置
JP2006344598A (ja) * 2005-06-10 2006-12-21 Samsung Electronics Co Ltd 導光板、これを有するバックライトアセンブリ及び液晶表示装置
KR20060128448A (ko) * 2005-06-10 2006-12-14 삼성전자주식회사 도광판, 이를 갖는 백라이트 어셈블리 및 액정표시장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10942310B2 (en) 2017-04-27 2021-03-09 Panasonic Intellectual Property Management Co., Ltd. On-board display device

Also Published As

Publication number Publication date
KR20090033961A (ko) 2009-04-07
CN101403834A (zh) 2009-04-08
KR101365091B1 (ko) 2014-02-19
CN101403834B (zh) 2013-03-20
JP2009087916A (ja) 2009-04-23

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