JP5242049B2 - 表示装置用バックライトユニット - Google Patents

表示装置用バックライトユニット Download PDF

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Publication number
JP5242049B2
JP5242049B2 JP2006348272A JP2006348272A JP5242049B2 JP 5242049 B2 JP5242049 B2 JP 5242049B2 JP 2006348272 A JP2006348272 A JP 2006348272A JP 2006348272 A JP2006348272 A JP 2006348272A JP 5242049 B2 JP5242049 B2 JP 5242049B2
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JP
Japan
Prior art keywords
diffusion sheet
light guide
areas
light
display device
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.)
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Application number
JP2006348272A
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English (en)
Japanese (ja)
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JP2008159451A (ja
Inventor
克彦 岸田
Original Assignee
エルジー ディスプレイ カンパニー リミテッド
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 エルジー ディスプレイ カンパニー リミテッド filed Critical エルジー ディスプレイ カンパニー リミテッド
Priority to JP2006348272A priority Critical patent/JP5242049B2/ja
Priority to KR1020070038717A priority patent/KR20080059489A/ko
Publication of JP2008159451A publication Critical patent/JP2008159451A/ja
Application granted granted Critical
Publication of JP5242049B2 publication Critical patent/JP5242049B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • 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
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
JP2006348272A 2006-12-25 2006-12-25 表示装置用バックライトユニット Active JP5242049B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006348272A JP5242049B2 (ja) 2006-12-25 2006-12-25 表示装置用バックライトユニット
KR1020070038717A KR20080059489A (ko) 2006-12-25 2007-04-20 표시장치용 백 라이트 유니트

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006348272A JP5242049B2 (ja) 2006-12-25 2006-12-25 表示装置用バックライトユニット

Publications (2)

Publication Number Publication Date
JP2008159451A JP2008159451A (ja) 2008-07-10
JP5242049B2 true JP5242049B2 (ja) 2013-07-24

Family

ID=39660120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006348272A Active JP5242049B2 (ja) 2006-12-25 2006-12-25 表示装置用バックライトユニット

Country Status (2)

Country Link
JP (1) JP5242049B2 (ko)
KR (1) KR20080059489A (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9035975B2 (en) 2009-10-14 2015-05-19 Dolby Laboratories Licensing Corporation Variable flower display backlight system
JP5496344B2 (ja) * 2009-10-14 2014-05-21 ドルビー ラボラトリーズ ライセンシング コーポレイション バリアブルなフラワーディスプレイのバックライトシステム
JP5931079B2 (ja) * 2010-10-28 2016-06-08 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 照明装置、照明器具及び照明システム
JP7064147B2 (ja) * 2018-09-28 2022-05-10 日亜化学工業株式会社 発光装置
CN110970408A (zh) 2018-09-28 2020-04-07 日亚化学工业株式会社 发光装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021114B4 (de) * 2000-05-02 2009-04-30 Robert Bosch Gmbh Beleuchtungsvorrichtung
KR20050007940A (ko) * 2003-07-12 2005-01-21 삼성전자주식회사 면광원 장치, 이의 제조 방법, 이를 이용한 백라이트어셈블리 및 이를 갖는 액정표시장치
KR20050045422A (ko) * 2003-11-11 2005-05-17 삼성전자주식회사 면광원 장치, 이의 제조 방법 및 이를 갖는 표시장치
WO2006059265A1 (en) * 2004-12-03 2006-06-08 Philips Intellectual Property & Standards Gmbh Lighting device
JP4979906B2 (ja) * 2005-08-04 2012-07-18 日産ライトトラック株式会社 液晶表示装置

Also Published As

Publication number Publication date
JP2008159451A (ja) 2008-07-10
KR20080059489A (ko) 2008-06-30

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