TW200643564A - Planar light source device and display device using the same - Google Patents

Planar light source device and display device using the same

Info

Publication number
TW200643564A
TW200643564A TW095112631A TW95112631A TW200643564A TW 200643564 A TW200643564 A TW 200643564A TW 095112631 A TW095112631 A TW 095112631A TW 95112631 A TW95112631 A TW 95112631A TW 200643564 A TW200643564 A TW 200643564A
Authority
TW
Taiwan
Prior art keywords
light
light source
planar light
same
emitting diodes
Prior art date
Application number
TW095112631A
Other languages
English (en)
Chinese (zh)
Inventor
Seiji Sakai
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 TW200643564A publication Critical patent/TW200643564A/zh

Links

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
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • H05B45/22—Controlling the colour of the light using optical feedback
    • 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
    • H05B47/16—Controlling the light source by timing means
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination 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
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Led Devices (AREA)
TW095112631A 2005-05-23 2006-04-10 Planar light source device and display device using the same TW200643564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005148992A JP4823568B2 (ja) 2005-05-23 2005-05-23 面状光源装置及びこれを用いた表示装置

Publications (1)

Publication Number Publication Date
TW200643564A true TW200643564A (en) 2006-12-16

Family

ID=37387886

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095112631A TW200643564A (en) 2005-05-23 2006-04-10 Planar light source device and display device using the same

Country Status (5)

Country Link
US (1) US7393128B2 (enExample)
JP (1) JP4823568B2 (enExample)
CN (1) CN100435004C (enExample)
DE (1) DE102006023694A1 (enExample)
TW (1) TW200643564A (enExample)

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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
JP5052860B2 (ja) * 2005-12-15 2012-10-17 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
JP4899527B2 (ja) * 2006-02-23 2012-03-21 パナソニック電工株式会社 Ｌｅｄ照明装置
JP2007234261A (ja) * 2006-02-28 2007-09-13 Casio Comput Co Ltd 照明装置
US8144115B2 (en) 2006-03-17 2012-03-27 Konicek Jeffrey C Flat panel display screen operable for touch position determination system and methods
US7859526B2 (en) * 2006-05-01 2010-12-28 Konicek Jeffrey C Active matrix emissive display and optical scanner system, methods and applications
GB2458095A (en) * 2007-06-15 2009-09-09 Sharp Kk Solid state illumination system with elements employed as both light source and light sensor
US8044899B2 (en) * 2007-06-27 2011-10-25 Hong Kong Applied Science and Technology Research Institute Company Limited Methods and apparatus for backlight calibration
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
JP4938697B2 (ja) * 2008-01-24 2012-05-23 日東光学株式会社 ラインスキャナ装置
JP5174567B2 (ja) * 2008-07-16 2013-04-03 パナソニック株式会社 表示灯
FR2934354B1 (fr) * 2008-07-28 2015-09-04 Phlox Appareil d'eclairage actif
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
US8496348B2 (en) 2008-10-02 2013-07-30 Sharp Kabushiki Kaisha Linear light source and electronic apparatus
CN101404144B (zh) * 2008-11-10 2010-10-06 友达光电（苏州）有限公司 可自动调整亮度的电子装置
RU2011128779A (ru) * 2009-01-23 2013-02-27 Квалкомм Мемс Текнолоджис, Инк. Интегрированное светоизлучающее и фотоэлектрическое устройство
US8324830B2 (en) * 2009-02-19 2012-12-04 Microsemi Corp.—Analog Mixed Signal Group Ltd. Color management for field-sequential LCD display
JP2010250979A (ja) * 2009-04-10 2010-11-04 Nittoh Kogaku Kk 照明装置、照明システムおよび照明制御方法
JP5025682B2 (ja) * 2009-05-08 2012-09-12 三菱電機株式会社 Ｌｅｄ照明装置
WO2010141269A2 (en) * 2009-06-02 2010-12-09 Dolby Laboratories Licensing Corporation Multi-die led package and backlight unit using the same
US9485919B2 (en) * 2009-08-07 2016-11-08 Showa Denko K.K. Multicolor light emitting diode lamp for plant growth, illumination apparatus, and plant growth method
WO2011048832A1 (ja) * 2009-10-23 2011-04-28 シャープ株式会社 線状光源、バックライト装置および表示装置
CN102597605B (zh) 2009-11-09 2016-02-10 三菱电机株式会社 面状光源装置及使用它的显示装置
FR2955011B1 (fr) * 2010-01-05 2012-02-24 Phlox Appareil d'eclairage et systeme d'alimentation par induction d'un tel appareil
DE102010013379A1 (de) * 2010-03-30 2011-10-06 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Beleuchtungsvorrichtung und Betriebsverfahren dafür
WO2011125359A1 (ja) * 2010-04-07 2011-10-13 シャープ株式会社 Ｌｅｄバックライト
US9360613B2 (en) 2010-04-28 2016-06-07 Mitsubishi Electric Corporation Planar light source apparatus and display apparatus using same
CN102376200B (zh) * 2010-08-12 2015-02-04 上海本星电子科技有限公司 具有红外显示功能的显示器
CN104485057B (zh) * 2010-08-12 2017-03-01 佛山逸扬广告标识制造有限公司 具有红外显示功能的显示器
GB201207503D0 (en) * 2012-04-30 2012-06-13 Sec Dep For Business Innovation & Skills The Apparatus and method for monitoring led efficiency
GB201207505D0 (en) * 2012-04-30 2012-06-13 Sec Dep For Business Innovation & Skills The Apparatus and method for monitoring led colour mix
DE102012014715A1 (de) * 2012-07-25 2014-05-15 Dräger Medical GmbH Verfahren für die Detektion optischer Signale
DE102018004485B4 (de) * 2018-06-04 2024-12-19 Sioptica Gmbh Verfahren zur physischen Überprüfung einer Betriebsart eines Bildschirms sowie dessen Verwendung
CN111103724B (zh) * 2018-10-26 2025-04-18 佛山市国星电子制造有限公司 Led背光模组、显示屏及led背光模组检测方法
CN112985587B (zh) * 2019-12-13 2024-04-09 旺矽科技股份有限公司 发光物料影像处理方法
US11538424B2 (en) 2021-04-27 2022-12-27 Microsoft Technology Licensing, Llc Self-calibrating illumination modules for display backlight

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JP3480594B2 (ja) * 1994-02-23 2003-12-22 豊田合成株式会社 集合型ｌｅｄランプ
JP4050802B2 (ja) * 1996-08-02 2008-02-20 シチズン電子株式会社 カラー表示装置
JPH11260572A (ja) 1998-03-13 1999-09-24 Omron Corp 照明装置
US6510995B2 (en) * 2001-03-16 2003-01-28 Koninklijke Philips Electronics N.V. RGB LED based light driver using microprocessor controlled AC distributed power system
US6630801B2 (en) * 2001-10-22 2003-10-07 Lümileds USA Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes
JP2003163090A (ja) * 2001-11-26 2003-06-06 Matsushita Electric Works Ltd 照明装置
US6664744B2 (en) 2002-04-03 2003-12-16 Mitsubishi Electric Research Laboratories, Inc. Automatic backlight for handheld devices
JP2004021147A (ja) 2002-06-20 2004-01-22 Advanced Display Inc 面状光源装置及びそれを用いた液晶表示装置
JP2004193029A (ja) * 2002-12-13 2004-07-08 Advanced Display Inc 光源装置及び表示装置
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
JP2006524841A (ja) * 2003-04-25 2006-11-02 ビジョニアード・イメージ・システムズ・インコーポレイテッド 個々のｌｅｄの明度モニタリング能力および較正方法を有するｌｅｄの光源／ディスプレイ
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JP4371733B2 (ja) 2003-08-21 2009-11-25 三菱電機株式会社 面状光源装置
US20060097978A1 (en) * 2004-10-22 2006-05-11 Ng Kee Y Field-sequential color display with feedback control
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
US8717647B2 (en) * 2005-10-13 2014-05-06 Hewlett-Packard Development Company, L.P. Imaging methods, imaging device calibration methods, imaging devices, and hard imaging device sensor assemblies
US8315534B2 (en) * 2005-11-01 2012-11-20 Ricoh Company, Ltd. Image forming device to supply DC power to a load from both a main power supply device and a capacitor supply device

Also Published As

Publication number Publication date
JP4823568B2 (ja) 2011-11-24
US7393128B2 (en) 2008-07-01
JP2006331659A (ja) 2006-12-07
DE102006023694A1 (de) 2006-11-30
CN1869787A (zh) 2006-11-29
US20060262530A1 (en) 2006-11-23
CN100435004C (zh) 2008-11-19

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