WO2009016913A1 - 照明装置および液晶表示装置 - Google Patents

照明装置および液晶表示装置 Download PDF

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Publication number
WO2009016913A1
WO2009016913A1 PCT/JP2008/062003 JP2008062003W WO2009016913A1 WO 2009016913 A1 WO2009016913 A1 WO 2009016913A1 JP 2008062003 W JP2008062003 W JP 2008062003W WO 2009016913 A1 WO2009016913 A1 WO 2009016913A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
temperature
thermistor
liquid crystal
crystal display
Prior art date
Application number
PCT/JP2008/062003
Other languages
English (en)
French (fr)
Inventor
Shinji Suminoe
Tomohiko Yamamoto
Akira Tomiyoshi
Naoto Inoue
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to JP2009525316A priority Critical patent/JP4980427B2/ja
Priority to EP08790807A priority patent/EP2141965A4/en
Priority to CN2008800159082A priority patent/CN101682961B/zh
Priority to BRPI0812456-6A2A priority patent/BRPI0812456A2/pt
Priority to US12/599,837 priority patent/US8111371B2/en
Publication of WO2009016913A1 publication Critical patent/WO2009016913A1/ja

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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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
    • H05B45/28—Controlling the colour of the light using temperature 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • 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
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Led Device Packages (AREA)

Abstract

　基板（１０）上に、ＬＥＤパッケージ（２０）と、ＦＥＴ（４２）を含むＬＥＤドライバと、サーミスタ（３０）とを配置する。ＬＥＤパッケージ（２０）は、基板（１０）上に複数配置する。これにより、基板（１０）上には、ＬＥＤパッケージ（２０）を頂点として画定された多角形の領域（５０）および領域（６０）が形成される。領域（５０）内にはサーミスタ（３０）を配置し、領域（５０）外となる領域（６０）内にはＦＥＴ（４２）を配置する。サーミスタ（３０）は、領域（５０）内の温度を検出する。このような構成によれば、サーミスタ（３０）は、領域（５０）内の温度に基づいて、ＦＥＴ（４２）からの発熱の影響を受けることなくＬＥＤパッケージ（２０）から伝わる温度を検出することができる。そのため、温度補正を効率よく行って、色温度および輝度を安定させることができる。
PCT/JP2008/062003 2007-07-27 2008-07-02 照明装置および液晶表示装置 WO2009016913A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2009525316A JP4980427B2 (ja) 2007-07-27 2008-07-02 照明装置および液晶表示装置
EP08790807A EP2141965A4 (en) 2007-07-27 2008-07-02 LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
CN2008800159082A CN101682961B (zh) 2007-07-27 2008-07-02 照明装置和液晶显示装置
BRPI0812456-6A2A BRPI0812456A2 (pt) 2007-07-27 2008-07-02 " dispositivo de iluminação e dispositivo de display de cristal líquido ".
US12/599,837 US8111371B2 (en) 2007-07-27 2008-07-02 Illumination device and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-196670 2007-07-27
JP2007196670 2007-07-27

Publications (1)

Publication Number Publication Date
WO2009016913A1 true WO2009016913A1 (ja) 2009-02-05

Family

ID=40304150

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062003 WO2009016913A1 (ja) 2007-07-27 2008-07-02 照明装置および液晶表示装置

Country Status (7)

Country Link
US (1) US8111371B2 (ja)
EP (1) EP2141965A4 (ja)
JP (1) JP4980427B2 (ja)
CN (1) CN101682961B (ja)
BR (1) BRPI0812456A2 (ja)
RU (1) RU2420930C1 (ja)
WO (1) WO2009016913A1 (ja)

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WO2010044300A1 (ja) * 2008-10-14 2010-04-22 シャープ株式会社 液晶表示装置
WO2010099647A1 (en) * 2009-03-02 2010-09-10 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Light emitting device package for temperature detection
JP2010230860A (ja) * 2009-03-26 2010-10-14 Victor Co Of Japan Ltd 映像表示装置およびその光源制御方法
WO2010146885A1 (ja) * 2009-06-17 2010-12-23 シャープ株式会社 画像表示装置およびその制御方法
JP2011134902A (ja) * 2009-12-24 2011-07-07 Toyoda Gosei Co Ltd Ｌｅｄ発光装置
WO2011158523A1 (ja) * 2010-06-17 2011-12-22 パナソニック液晶ディスプレイ株式会社 液晶表示装置及びテレビ受像機
US8093788B2 (en) 2009-03-02 2012-01-10 Hong Kong Applied Science And Technology Research Institute Co. Ltd. Light emitting device package for temeperature detection
JP2012155268A (ja) * 2011-01-28 2012-08-16 Casio Comput Co Ltd 光源装置、投影装置及び光源制御方法
JP2013004263A (ja) * 2011-06-15 2013-01-07 Canon Inc バックライト装置、その制御方法、及び画像表示装置
JPWO2011125885A1 (ja) * 2010-03-31 2013-07-11 インテックス株式会社 光源装置
JP2013170727A (ja) * 2012-02-20 2013-09-02 Panasonic Corp 冷蔵庫
JP2013204894A (ja) * 2012-03-28 2013-10-07 Panasonic Corp 冷蔵庫
US9036113B2 (en) 2010-06-17 2015-05-19 Japan Display Inc. Liquid crystal display device and television set
CN110177668A (zh) * 2017-01-13 2019-08-27 Lg伊诺特有限公司 固化装置
CN111788867A (zh) * 2018-06-15 2020-10-16 伊诺瓦半导体有限责任公司 设定恒定波长的方法和系统装置
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CN105376351A (zh) * 2014-08-21 2016-03-02 中兴通讯股份有限公司 屏幕显示方法及装置、屏幕
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DE102016104440A1 (de) 2016-03-10 2017-09-14 Inova Semiconductors Gmbh Verfahren und Vorrichtung zur Helligkeitskompensation einer LED
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CN110767179B (zh) * 2019-06-10 2020-11-24 惠科股份有限公司 一种背光控制方法、驱动模块和显示装置
JP2021028887A (ja) * 2019-08-09 2021-02-25 キヤノン株式会社 発光装置および表示装置
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Cited By (21)

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Publication number Priority date Publication date Assignee Title
WO2010044300A1 (ja) * 2008-10-14 2010-04-22 シャープ株式会社 液晶表示装置
WO2010099647A1 (en) * 2009-03-02 2010-09-10 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Light emitting device package for temperature detection
US8093788B2 (en) 2009-03-02 2012-01-10 Hong Kong Applied Science And Technology Research Institute Co. Ltd. Light emitting device package for temeperature detection
JP2010230860A (ja) * 2009-03-26 2010-10-14 Victor Co Of Japan Ltd 映像表示装置およびその光源制御方法
WO2010146885A1 (ja) * 2009-06-17 2010-12-23 シャープ株式会社 画像表示装置およびその制御方法
JP2011134902A (ja) * 2009-12-24 2011-07-07 Toyoda Gosei Co Ltd Ｌｅｄ発光装置
JPWO2011125885A1 (ja) * 2010-03-31 2013-07-11 インテックス株式会社 光源装置
JP2017022137A (ja) * 2010-03-31 2017-01-26 インテックス株式会社 光源装置
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WO2011158523A1 (ja) * 2010-06-17 2011-12-22 パナソニック液晶ディスプレイ株式会社 液晶表示装置及びテレビ受像機
JP2012155268A (ja) * 2011-01-28 2012-08-16 Casio Comput Co Ltd 光源装置、投影装置及び光源制御方法
JP2013004263A (ja) * 2011-06-15 2013-01-07 Canon Inc バックライト装置、その制御方法、及び画像表示装置
JP2013170727A (ja) * 2012-02-20 2013-09-02 Panasonic Corp 冷蔵庫
JP2013204894A (ja) * 2012-03-28 2013-10-07 Panasonic Corp 冷蔵庫
CN110177668A (zh) * 2017-01-13 2019-08-27 Lg伊诺特有限公司 固化装置
CN110177668B (zh) * 2017-01-13 2022-07-12 Lg伊诺特有限公司 固化装置
US11897171B2 (en) 2017-01-13 2024-02-13 Lg Innotek Co., Ltd. Curing-device
CN111788867A (zh) * 2018-06-15 2020-10-16 伊诺瓦半导体有限责任公司 设定恒定波长的方法和系统装置

Also Published As

Publication number Publication date
EP2141965A4 (en) 2011-03-23
RU2420930C1 (ru) 2011-06-10
BRPI0812456A2 (pt) 2014-12-02
JP4980427B2 (ja) 2012-07-18
US8111371B2 (en) 2012-02-07
CN101682961B (zh) 2013-01-02
EP2141965A1 (en) 2010-01-06
US20100271565A1 (en) 2010-10-28
CN101682961A (zh) 2010-03-24
JPWO2009016913A1 (ja) 2010-10-14

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