TWI260446B - Planar light source device, and display device with planar light source - Google Patents

Planar light source device, and display device with planar light source Download PDF

Info

Publication number
TWI260446B
TWI260446B TW093123486A TW93123486A TWI260446B TW I260446 B TWI260446 B TW I260446B TW 093123486 A TW093123486 A TW 093123486A TW 93123486 A TW93123486 A TW 93123486A TW I260446 B TWI260446 B TW I260446B
Authority
TW
Taiwan
Prior art keywords
light
light source
incident
disposed
source device
Prior art date
Application number
TW093123486A
Other languages
English (en)
Chinese (zh)
Other versions
TW200508720A (en
Inventor
Seiji Sakai
Akihiro Mori
Toshiyuki Yoneda
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of TW200508720A publication Critical patent/TW200508720A/zh
Application granted granted Critical
Publication of TWI260446B publication Critical patent/TWI260446B/zh

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
    • G02F1/1336—Illuminating devices
    • 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
    • G02B6/0081—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
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
TW093123486A 2003-08-21 2004-08-05 Planar light source device, and display device with planar light source TWI260446B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003297460A JP4371733B2 (ja) 2003-08-21 2003-08-21 面状光源装置

Publications (2)

Publication Number Publication Date
TW200508720A TW200508720A (en) 2005-03-01
TWI260446B true TWI260446B (en) 2006-08-21

Family

ID=34403307

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093123486A TWI260446B (en) 2003-08-21 2004-08-05 Planar light source device, and display device with planar light source

Country Status (3)

Country Link
JP (1) JP4371733B2 (ko)
KR (1) KR100660238B1 (ko)
TW (1) TWI260446B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9897834B2 (en) 2013-02-25 2018-02-20 Eizo Corporation Light sensor attachment structure of image display device

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006269293A (ja) * 2005-03-24 2006-10-05 Fujinon Corp 照明装置および照明方法
JP4482473B2 (ja) * 2005-03-25 2010-06-16 シャープ株式会社 液晶表示装置
JP4823568B2 (ja) 2005-05-23 2011-11-24 三菱電機株式会社 面状光源装置及びこれを用いた表示装置
JP4507989B2 (ja) * 2005-06-07 2010-07-21 ソニー株式会社 支柱、バックライト装置及び液晶表示装置
JP3872810B1 (ja) * 2005-08-12 2007-01-24 シャープ株式会社 光源制御装置、照明装置及び液晶表示装置
JP4822502B2 (ja) * 2005-08-12 2011-11-24 シチズン電子株式会社 バックライト
US7230222B2 (en) * 2005-08-15 2007-06-12 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Calibrated LED light module
WO2007069382A1 (ja) * 2005-12-12 2007-06-21 Sharp Kabushiki Kaisha 光源装置、表示装置およびテレビ受信機
WO2007074568A1 (ja) * 2005-12-29 2007-07-05 Sharp Kabushiki Kaisha 光源装置、表示装置およびテレビ受信機
KR100709362B1 (ko) * 2006-01-20 2007-04-20 삼성전자주식회사 광학시트의 전면에 광센서를 배치한 디스플레이장치
JP2009087538A (ja) * 2006-01-20 2009-04-23 Sharp Corp 光源ユニット、及びそれを用いた照明装置、及びそれを用いた表示装置
JP2009087537A (ja) * 2006-01-20 2009-04-23 Sharp Corp 光源ユニット、及びそれを用いた照明装置、及びそれを用いた表示装置
JP2007240649A (ja) 2006-03-06 2007-09-20 Sony Corp 光学表示装置
TWI342974B (en) * 2006-07-06 2011-06-01 Chimei Innolux Corp Liquid crystal display and backlight module thereof
KR100793581B1 (ko) 2006-08-29 2008-01-14 엘지이노텍 주식회사 백라이트 유닛 및 이를 이용한 디스플레이 장치
JP4264558B2 (ja) 2006-11-10 2009-05-20 ソニー株式会社 バックライト装置、バックライト駆動方法及びカラー画像表示装置
WO2008072160A1 (en) * 2006-12-13 2008-06-19 Koninklijke Philips Electronics N.V. Method for light emitting diode control and corresponding light sensor array, backlight and liquid crystal display
JP2008251230A (ja) * 2007-03-29 2008-10-16 Harison Toshiba Lighting Corp 中空式面照明装置
KR20080093220A (ko) * 2007-04-16 2008-10-21 엘지이노텍 주식회사 광원 장치 및 표시 장치, 광원 제어 장치 및 방법
JP2009014901A (ja) * 2007-07-03 2009-01-22 Totoku Electric Co Ltd 液晶表示ユニット
KR100919461B1 (ko) * 2007-07-09 2009-09-28 심현섭 색온도가 변환되는 조명기기용 광원장치
JP5093720B2 (ja) 2007-09-04 2012-12-12 Ｎｌｔテクノロジー株式会社 バックライトユニット、表示装置
JP2009092724A (ja) * 2007-10-04 2009-04-30 Mitsubishi Electric Corp 液晶表示装置
JP5052298B2 (ja) * 2007-11-16 2012-10-17 三菱電機株式会社 面状光源装置および表示装置
WO2009093363A1 (ja) * 2008-01-22 2009-07-30 Sharp Kabushiki Kaisha 照明装置、表示装置、及びテレビ受信装置
KR101532571B1 (ko) * 2008-04-21 2015-07-09 삼성디스플레이 주식회사 액정 표시 장치
JP2010085854A (ja) * 2008-10-01 2010-04-15 Seiko Epson Corp 電気光学装置、光検出装置及び電子機器
JP5025682B2 (ja) * 2009-05-08 2012-09-12 三菱電機株式会社 Ｌｅｄ照明装置
JP4786750B2 (ja) * 2010-03-12 2011-10-05 シャープ株式会社 照明装置
JP5116865B2 (ja) * 2011-07-13 2013-01-09 シャープ株式会社 照明装置
US8568000B2 (en) * 2011-08-29 2013-10-29 Tai-Her Yang Annular-arranged lamp capable of backward projecting by concave sphere
EP2795380A1 (en) * 2011-12-22 2014-10-29 3M Innovative Properties Company Optical device with sensor and method of making and using same
CN205609112U (zh) * 2013-05-31 2016-09-28 Nec显示器解决方案株式会社 显示装置
GB2522175A (en) * 2013-10-31 2015-07-22 Barco Nv Display system
KR200477456Y1 (ko) * 2014-01-21 2015-06-09 주식회사 아이디시스 센서가 장착된 조명장치
CN110017895B (zh) * 2019-03-26 2023-11-14 广州市轩士佳电子科技有限公司 一种光源监控系统
CN110536525A (zh) * 2019-08-16 2019-12-03 安徽信息工程学院 智能车载照明系统
CN115171547B (zh) * 2022-05-16 2023-11-28 昆山国显光电有限公司 显示基板及其驱动方法和显示装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9897834B2 (en) 2013-02-25 2018-02-20 Eizo Corporation Light sensor attachment structure of image display device
US10175512B2 (en) 2013-02-25 2019-01-08 Eizo Corporation Light sensor attachment structure of image display device
US10175513B2 (en) 2013-02-25 2019-01-08 Eizo Corporation Light sensor attachment structure of image display device
US10295851B2 (en) 2013-02-25 2019-05-21 Eizo Corporation Light sensor attachment structure of image display device

Also Published As

Publication number Publication date
KR20050020667A (ko) 2005-03-04
JP2005071702A (ja) 2005-03-17
KR100660238B1 (ko) 2006-12-20
JP4371733B2 (ja) 2009-11-25
TW200508720A (en) 2005-03-01

Similar Documents

Publication Publication Date Title
TWI260446B (en) Planar light source device, and display device with planar light source
US7569807B2 (en) Light source with photosensor light guide
TWI236713B (en) Flat-panel light source device, liquid crystal display device, and display device
KR100624408B1 (ko) 백라이트 유닛
EP1794811B1 (en) Illumination system
TWI353478B (ko)
US7364343B2 (en) Compact lighting system and display device
US7172328B2 (en) Compact lighting system and display device
US20100060172A1 (en) Hollow Planar Illuminating Apparatus
EP1913434B1 (en) Illumination system, use of a light-sensing plate in an illumination system and display device
US20070222741A1 (en) Liquid crystal display apparatus and backlight unit used in liquid crystal display apparatus
JP2005340212A (ja) 平面発光装置
KR20070091576A (ko) 광학 표시 장치
JP6481471B2 (ja) 光学部材、発光装置及び照明装置
JP2006310307A (ja) Ｌｃｄバックライトディスプレイの光源
US7014347B2 (en) Illumination device for a color liquid crystal display
EP2330338A1 (en) Illuminating device, display device and television receiver
JP2007149402A (ja) 照明装置及び液晶表示装置
JP2011044379A (ja) バックライト装置
JP2004309543A (ja) 投写型表示装置
JP2011198479A (ja) 面光源および液晶ディスプレイ装置
KR100634554B1 (ko) 백라이트 유닛
JP2018190557A (ja) 光源装置及び表示装置
JP2006004848A (ja) 発光装置及び表示装置

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees