CN102419959A - 有效利用有色led光源的白光背光源等 - Google Patents

有效利用有色led光源的白光背光源等 Download PDF

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Publication number
CN102419959A
CN102419959A CN2011103588952A CN201110358895A CN102419959A CN 102419959 A CN102419959 A CN 102419959A CN 2011103588952 A CN2011103588952 A CN 2011103588952A CN 201110358895 A CN201110358895 A CN 201110358895A CN 102419959 A CN102419959 A CN 102419959A
Authority
CN
China
Prior art keywords
light
led
light source
backlight
led light
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.)
Pending
Application number
CN2011103588952A
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English (en)
Chinese (zh)
Inventor
瓦迪姆·萨瓦蒂夫
罗尔夫·W·比尔纳特
约翰·A·惠特利
迈克尔·A·梅斯
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties 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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of CN102419959A publication Critical patent/CN102419959A/zh
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
CN2011103588952A 2007-05-20 2008-05-19 有效利用有色led光源的白光背光源等 Pending CN102419959A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93908307P 2007-05-20 2007-05-20
US60/939,083 2007-05-23

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN200880015846A Division CN101681597A (zh) 2007-05-20 2008-05-19 有效利用有色led光源的白光背光源等

Publications (1)

Publication Number Publication Date
CN102419959A true CN102419959A (zh) 2012-04-18

Family

ID=39584935

Family Applications (2)

Application Number Title Priority Date Filing Date
CN2011103588952A Pending CN102419959A (zh) 2007-05-20 2008-05-19 有效利用有色led光源的白光背光源等
CN200880015846A Pending CN101681597A (zh) 2007-05-20 2008-05-19 有效利用有色led光源的白光背光源等

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN200880015846A Pending CN101681597A (zh) 2007-05-20 2008-05-19 有效利用有色led光源的白光背光源等

Country Status (7)

Country Link
US (1) US20100165001A1 (enExample)
EP (1) EP2160729A2 (enExample)
JP (1) JP2010528432A (enExample)
KR (1) KR20100021477A (enExample)
CN (2) CN102419959A (enExample)
TW (1) TW200916916A (enExample)
WO (1) WO2008147753A2 (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2160645A2 (en) 2007-05-20 2010-03-10 3M Innovative Properties Company Light recycling hollow cavity type display backlight
WO2008144644A2 (en) 2007-05-20 2008-11-27 3M Innovative Properties Company Semi-specular components in hollow cavity light recycling backlights
WO2008144636A2 (en) 2007-05-20 2008-11-27 3M Innovative Properties Company Design parameters for thin hollow cavity backlights of the light-recycling type
TWI439641B (zh) 2007-05-20 2014-06-01 3M Innovative Properties Co 用於側面發光型背光之準直光注入器
EP2255231A1 (en) 2008-02-07 2010-12-01 3M Innovative Properties Company Hollow backlight with structured films
JP5792464B2 (ja) 2008-02-22 2015-10-14 スリーエム イノベイティブ プロパティズ カンパニー 選択的出力光束分布を有するバックライト及びそれを使用した表示システム並びにバックライトの形成方法
EP2297607B1 (en) 2008-06-04 2014-04-23 3M Innovative Properties Company Hollow backlight with tilted light source
CN102356424A (zh) 2009-03-17 2012-02-15 皇家飞利浦电子股份有限公司 驱动彩色顺序显示器的方法
US8716952B2 (en) 2009-08-04 2014-05-06 Cree, Inc. Lighting device having first, second and third groups of solid state light emitters, and lighting arrangement
US8727565B2 (en) 2009-09-14 2014-05-20 James L. Ecker LED lighting devices having improved light diffusion and thermal performance
US20110062868A1 (en) * 2009-09-14 2011-03-17 Domagala Thomas W High luminous output LED lighting devices
US8228463B2 (en) * 2009-11-18 2012-07-24 3M Innovative Properties Company Passive daylight-coupled backlight with turning film having prisms with chaos for sunlight viewable displays
US8384852B2 (en) 2010-11-22 2013-02-26 3M Innovative Properties Company Hybrid daylight-coupled backlights for sunlight viewable displays
JP2015503820A (ja) 2011-12-22 2015-02-02 スリーエム イノベイティブ プロパティズ カンパニー センサを備える光学装置、及びその製造及び使用方法
CN103453333A (zh) * 2012-05-30 2013-12-18 致茂电子(苏州)有限公司 具有连续光谱的发光二极管光源
KR20140089879A (ko) * 2013-01-08 2014-07-16 삼성디스플레이 주식회사 액정 표시 장치
US9210768B2 (en) 2013-02-15 2015-12-08 Osram Sylvania Inc. Illumination techniques and devices
US9196855B2 (en) 2013-03-13 2015-11-24 Vizio Inc Zone backlighting for LCD displays LCD displays through use of field-induced polymer electro luminescence panels
US9171509B2 (en) 2013-04-19 2015-10-27 VIZIO Inc. Single backlight source where the backlight emits pure colored light in a sequential manner where the sequence is red, blue and green
GB2534698B (en) * 2013-10-22 2020-11-25 Daisho Denki Kk Illumination system
US9046637B1 (en) 2014-02-25 2015-06-02 3M Innovative Properties Company Tubular lighting systems with inner and outer structured surfaces
US10161593B2 (en) 2014-02-25 2018-12-25 3M Innovative Properties Company Solid state lighting device with virtual filament(s)
CN104537217B (zh) * 2014-12-17 2017-04-26 青岛海信电器股份有限公司 照明体及显示器背光光谱功率分布的优化方法
JP2017168744A (ja) * 2016-03-17 2017-09-21 東芝ライテック株式会社 発光装置、および照明装置
IL311948A (en) 2017-03-21 2024-06-01 Magic Leap Inc Methods, devices and systems for illuminating spatial light modulators
CN109493809B (zh) * 2017-09-12 2021-01-01 纬创资通（中山）有限公司 显示装置以及背光驱动方法
US11083059B2 (en) * 2019-10-03 2021-08-03 Creeled, Inc. Lumiphoric arrangements for light emitting diode packages

Family Cites Families (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711176A (en) * 1971-01-14 1973-01-16 Dow Chemical Co Highly reflective thermoplastic bodies for infrared, visible or ultraviolet light
US3884606A (en) * 1971-10-01 1975-05-20 Dow Chemical Co Apparatus for multilayer coextrusion of sheet or film
US4446305A (en) * 1981-03-02 1984-05-01 Polaroid Corporation Optical device including birefringent polymer
US4456336A (en) * 1981-10-06 1984-06-26 Minnesota Mining And Manufacturing Company High brightness internal reflector for liquid crystal displays and its method of fabrication
US5103337A (en) * 1990-07-24 1992-04-07 The Dow Chemical Company Infrared reflective optical interference film
US5126880A (en) * 1990-12-18 1992-06-30 The Dow Chemical Company Polymeric reflective bodies with multiple layer types
US5586013A (en) * 1991-07-19 1996-12-17 Minnesota Mining And Manufacturing Company Nonimaging optical illumination system
US5528720A (en) * 1992-03-23 1996-06-18 Minnesota Mining And Manufacturing Co. Tapered multilayer luminaire devices
US5440197A (en) * 1993-10-05 1995-08-08 Tir Technologies, Inc. Backlighting apparatus for uniformly illuminating a display panel
US5882774A (en) * 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
DE69602588T2 (de) * 1995-03-03 1999-10-14 Minnesota Mining & Mfg Lichtlenkender film mit in der höhe variierender strukturierter oberfläche und daraus hergestellter lichtlenkender artikel
US5751388A (en) * 1995-04-07 1998-05-12 Honeywell Inc. High efficiency polarized display
JP3187280B2 (ja) * 1995-05-23 2001-07-11 シャープ株式会社 面照明装置
EP0871923A1 (en) * 1995-06-26 1998-10-21 Minnesota Mining And Manufacturing Company Transflective displays with reflective polarizing transflector
US6080467A (en) * 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
CN1106937C (zh) * 1995-06-26 2003-04-30 美国3M公司 带有附加涂层或附加层的多层聚合物薄膜
EP0832392B1 (en) * 1995-06-26 2003-08-13 Minnesota Mining And Manufacturing Company Backlight system with multilayer optical film reflector
US6712481B2 (en) * 1995-06-27 2004-03-30 Solid State Opto Limited Light emitting panel assemblies
US5867316A (en) * 1996-02-29 1999-02-02 Minnesota Mining And Manufacturing Company Multilayer film having a continuous and disperse phase
US6600175B1 (en) * 1996-03-26 2003-07-29 Advanced Technology Materials, Inc. Solid state white light emitter and display using same
JP4007461B2 (ja) * 1996-07-24 2007-11-14 シチズン電子株式会社 カラー表示装置
US6531230B1 (en) * 1998-01-13 2003-03-11 3M Innovative Properties Company Color shifting film
EP1057049B1 (en) * 1998-02-18 2008-10-01 Minnesota Mining And Manufacturing Company Optical film
US6752505B2 (en) * 1999-02-23 2004-06-22 Solid State Opto Limited Light redirecting films and film systems
EP1153240B1 (en) * 1999-02-24 2003-11-19 3M Innovative Properties Company Illumination device for producing predetermined intensity patterns
US6267492B1 (en) * 1999-04-15 2001-07-31 3M Innovative Properties Company Illumination device with side emitting light guide
US6738349B1 (en) * 2000-03-01 2004-05-18 Tektronix, Inc. Non-intrusive measurement of end-to-end network properties
US6893135B2 (en) * 2000-03-16 2005-05-17 3M Innovative Properties Company Light guides suitable for illuminated displays
EP1410076A4 (en) * 2000-04-25 2008-10-01 Honeywell Int Inc HOLLOW CAVITY OPTICAL GUIDE FOR COLLIMIZED LIGHT DISTRIBUTION TO A LIQUID CRYSTAL DISPLAY
JP4288553B2 (ja) * 2000-07-25 2009-07-01 富士フイルム株式会社 カメラのストロボ装置
US6673425B1 (en) * 2000-10-27 2004-01-06 3M Innovative Properties Company Method and materials for preventing warping in optical films
US6888529B2 (en) * 2000-12-12 2005-05-03 Koninklijke Philips Electronics N.V. Control and drive circuit arrangement for illumination performance enhancement with LED light sources
US6917399B2 (en) * 2001-02-22 2005-07-12 3M Innovative Properties Company Optical bodies containing cholesteric liquid crystal material and methods of manufacture
JP4115844B2 (ja) * 2001-05-08 2008-07-09 ルミレッズ ライティング ネザーランズ ベスローテン フェンノートシャップ 照明システム及びディスプレイ装置
DE60237084D1 (de) * 2001-06-07 2010-09-02 Genoa Color Technologies Ltd System und verfahren zur datenumsetzung für anzeigen mit grosser stufenleiter
JP2003029720A (ja) * 2001-07-16 2003-01-31 Fujitsu Ltd 表示装置
ATE374338T1 (de) * 2001-08-27 2007-10-15 Koninkl Philips Electronics Nv Lichtpaneel mit vergrössertem sichtfenster
GB0123813D0 (en) * 2001-10-03 2001-11-21 3M Innovative Properties Co Light-guide lights suitable for use in illuminated displays
IL161732A0 (en) * 2001-11-02 2005-11-20 Honeywell Int Inc Hollow wedge shape light guide for back illumination
EP2410357A3 (en) * 2001-12-14 2012-05-02 QUALCOMM MEMS Technologies, Inc. Uniform illumination system
CN1643344A (zh) * 2002-03-20 2005-07-20 三井金属矿业株式会社 流量测定方法和流量计、其中所使用的流量测定部组件和使用了该组件的流量测定单元、以及使用了流量计的配管泄漏检查装置
JP2004111357A (ja) * 2002-07-09 2004-04-08 Topcon Corp 光源装置
US7460196B2 (en) * 2002-09-25 2008-12-02 Lg Displays Co., Ltd. Backlight device for liquid crystal display and method of fabricating the same
JP4091414B2 (ja) * 2002-12-18 2008-05-28 三菱電機株式会社 面状光源装置、表示装置及び液晶表示装置
US6846089B2 (en) * 2003-05-16 2005-01-25 3M Innovative Properties Company Method for stacking surface structured optical films
EP1653149B1 (en) * 2003-06-16 2011-10-19 Mitsubishi Denki Kabushiki Kaisha Planar light source device and display device using the same
US6905212B2 (en) * 2003-07-02 2005-06-14 Hewlett-Packard Development Company, L.P. Varying light beam for a display system
TW594264B (en) * 2003-07-09 2004-06-21 Chunghwa Picture Tubes Ltd A light-projecting device for a backlight module in a flat panel display device
TWI264511B (en) * 2003-07-11 2006-10-21 Hon Hai Prec Ind Co Ltd Light source system and backlight module using the same
US7114839B2 (en) * 2003-10-06 2006-10-03 Chia Shin Kuo Light-inverse type guidelight plate
JP3984214B2 (ja) * 2003-10-21 2007-10-03 ローム株式会社 発光制御装置
US7052168B2 (en) * 2003-12-17 2006-05-30 3M Innovative Properties Company Illumination device
US7223005B2 (en) * 2003-12-23 2007-05-29 Lamb David J Hybrid lightguide backlight
US7303322B2 (en) * 2003-12-23 2007-12-04 3M Innovative Properties Company Multiple lightguide backlight
WO2005073952A1 (ja) * 2004-01-28 2005-08-11 Matsushita Electric Industrial Co., Ltd. 発光方法、発光装置、投写型表示装置
US7009343B2 (en) * 2004-03-11 2006-03-07 Kevin Len Li Lim System and method for producing white light using LEDs
JP4590283B2 (ja) * 2004-05-21 2010-12-01 シャープ株式会社 バックライトユニット及びそれを備えた液晶表示装置
US7213958B2 (en) * 2004-06-30 2007-05-08 3M Innovative Properties Company Phosphor based illumination system having light guide and an interference reflector
US7436469B2 (en) * 2004-10-15 2008-10-14 3M Innovative Properties Company Composite diffuser plates and direct-lit liquid crystal displays using same
US7329982B2 (en) * 2004-10-29 2008-02-12 3M Innovative Properties Company LED package with non-bonded optical element
US20060103777A1 (en) * 2004-11-15 2006-05-18 3M Innovative Properties Company Optical film having a structured surface with rectangular based prisms
US7745814B2 (en) * 2004-12-09 2010-06-29 3M Innovative Properties Company Polychromatic LED's and related semiconductor devices
US20060131601A1 (en) * 2004-12-21 2006-06-22 Ouderkirk Andrew J Illumination assembly and method of making same
US7220026B2 (en) * 2004-12-30 2007-05-22 3M Innovative Properties Company Optical film having a structured surface with offset prismatic structures
US7416309B2 (en) * 2004-12-30 2008-08-26 3M Innovative Properties Company Optical film having a surface with rounded structures
US7320538B2 (en) * 2004-12-30 2008-01-22 3M Innovative Properties Company Optical film having a structured surface with concave pyramid-shaped structures
US7220036B2 (en) * 2005-05-20 2007-05-22 3M Innovative Properties Company Thin direct-lit backlight for LCD display
US7196483B2 (en) * 2005-06-16 2007-03-27 Au Optronics Corporation Balanced circuit for multi-LED driver
JP4935004B2 (ja) * 2005-07-01 2012-05-23 ソニー株式会社 表示装置
US20070024994A1 (en) * 2005-07-29 2007-02-01 3M Innovative Properties Company Structured optical film with interspersed pyramidal structures
US7537374B2 (en) * 2005-08-27 2009-05-26 3M Innovative Properties Company Edge-lit backlight having light recycling cavity with concave transflector
WO2007027521A1 (en) * 2005-08-27 2007-03-08 3M Innovative Properties Company Illumination assembly and system
US20070047228A1 (en) * 2005-08-27 2007-03-01 3M Innovative Properties Company Methods of forming direct-lit backlights having light recycling cavity with concave transflector
US7438442B2 (en) * 2005-10-12 2008-10-21 Lg Display Co., Ltd. Light emitting package, backlight unit and liquid crystal display device including the same
TWI331694B (en) * 2005-10-20 2010-10-11 Ind Tech Res Inst Back-lighted structure
US20070147037A1 (en) * 2005-12-22 2007-06-28 Dynascan Technology Corp. Super slim LCD backlight device using uniforming chamber
US20070153384A1 (en) * 2005-12-30 2007-07-05 Ouderkirk Andrew J Reinforced reflective polarizer films
US20070153162A1 (en) * 2005-12-30 2007-07-05 Wright Robin E Reinforced reflective polarizer films
TW200728851A (en) * 2006-01-20 2007-08-01 Hon Hai Prec Ind Co Ltd Backlight module
US7525126B2 (en) * 2006-05-02 2009-04-28 3M Innovative Properties Company LED package with converging optical element
US7660509B2 (en) * 2006-05-24 2010-02-09 3M Innovative Properties Company Backlight asymmetric light input wedge
US7317182B2 (en) * 2006-05-24 2008-01-08 3M Innovative Properties Company Backlight wedge with encapsulated light source
US7740387B2 (en) * 2006-05-24 2010-06-22 3M Innovative Properties Company Backlight wedge with side mounted light source
US20080002256A1 (en) * 2006-06-30 2008-01-03 3M Innovative Properties Company Optical article including a beaded layer
TWM317024U (en) * 2006-07-25 2007-08-11 Longtech Systems Corp Brightness improved structure of lateral backlight for LCD
US7905650B2 (en) * 2006-08-25 2011-03-15 3M Innovative Properties Company Backlight suitable for display devices
US20080057277A1 (en) * 2006-08-30 2008-03-06 3M Innovative Properties Company Polymer fiber polarizers
US7481563B2 (en) * 2006-09-21 2009-01-27 3M Innovative Properties Company LED backlight
WO2008144636A2 (en) * 2007-05-20 2008-11-27 3M Innovative Properties Company Design parameters for thin hollow cavity backlights of the light-recycling type
TWI439641B (zh) * 2007-05-20 2014-06-01 3M Innovative Properties Co 用於側面發光型背光之準直光注入器
EP2160645A2 (en) * 2007-05-20 2010-03-10 3M Innovative Properties Company Light recycling hollow cavity type display backlight
US7513634B2 (en) * 2007-05-21 2009-04-07 National Tsing Hua University Structure of planar illuminator
EP2255231A1 (en) * 2008-02-07 2010-12-01 3M Innovative Properties Company Hollow backlight with structured films
JP5792464B2 (ja) * 2008-02-22 2015-10-14 スリーエム イノベイティブ プロパティズ カンパニー 選択的出力光束分布を有するバックライト及びそれを使用した表示システム並びにバックライトの形成方法
EP2297607B1 (en) * 2008-06-04 2014-04-23 3M Innovative Properties Company Hollow backlight with tilted light source
JP5390604B2 (ja) * 2008-06-13 2014-01-15 スリーエム イノベイティブ プロパティズ カンパニー コリメート光エンジン

Also Published As

Publication number Publication date
WO2008147753A3 (en) 2009-02-05
WO2008147753A2 (en) 2008-12-04
WO2008147753A8 (en) 2010-04-01
KR20100021477A (ko) 2010-02-24
US20100165001A1 (en) 2010-07-01
TW200916916A (en) 2009-04-16
JP2010528432A (ja) 2010-08-19
CN101681597A (zh) 2010-03-24
EP2160729A2 (en) 2010-03-10

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