JP4801159B2 - 光源駆動回路および該光源駆動回路を備える光源部品、並びに表示装置 - Google Patents
光源駆動回路および該光源駆動回路を備える光源部品、並びに表示装置 Download PDFInfo
- Publication number
- JP4801159B2 JP4801159B2 JP2008532037A JP2008532037A JP4801159B2 JP 4801159 B2 JP4801159 B2 JP 4801159B2 JP 2008532037 A JP2008532037 A JP 2008532037A JP 2008532037 A JP2008532037 A JP 2008532037A JP 4801159 B2 JP4801159 B2 JP 4801159B2
- Authority
- JP
- Japan
- Prior art keywords
- light source
- temperature
- driving circuit
- light
- driver
- 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.)
- Expired - Fee Related
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-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
-
- 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
- H05B35/00—Electric light sources using a combination of different types of light generation
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
-
- 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]
- H05B45/10—Controlling the intensity of the light
-
- 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]
- H05B45/10—Controlling the intensity of the light
- H05B45/18—Controlling the intensity 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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- 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
- 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
- G02F1/133604—Direct backlight with lamps
-
- 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
- G02F1/133612—Electrical details
-
- 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]
- H05B45/30—Driver circuits
- H05B45/395—Linear regulators
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
Y 光源部品
Z 液晶表示装置
C 駆動回路
E 外部電源
L1 第1光源
L2 第2光源
10 選択手段
11 温度依存部
12 切り替え部
13 温度幅付与部
20 調整手段
30 制御手段
40 配線
50 支持基体
60 液晶表示パネル
61 液晶層
62 第1基体
63 第2基体
64 封止部材
70 筐体
71 上側筐体
72 下側筐体
Claims (9)
- 第1光源と、基準温度以下の環境温度で少なくとも一つの光源特性が前記第1光源より高い第2光源との駆動を制御するためのコントローラを備える光源駆動回路であって、
前記コントローラは、前記環境温度が前記基準温度を超えると前記第1光源を駆動するための第1ドライバを選択し、前記環境温度が前記基準温度以下になると前記第2光源を駆動するための第2ドライバを選択するセレクタを有することを特徴とする、光源駆動回路。 - 前記セレクタは、前記環境温度に応じて特性が変化する温度依存部と、該温度依存部における特性変化に応じて、前記第1ドライバと前記第2ドライバとを切り替える切り替え部とを含んでなる、請求項1に記載の光源駆動回路。
- 前記コントローラは、前記第1光源または前記第2光源に入力される電力の電圧または電流を調節するアジャスタを更に有する、請求項1に記載の光源駆動回路。
- 前記コントローラは、前記第1光源または前記第2光源からの帰還信号を前記アジャスタに帰還させて該アジャスタを帰還制御するフィードバックコントローラを更に有する、請求項3に記載の光源駆動回路。
- 前記基準温度は温度幅を有する、請求項1に記載の光源駆動回路。
- 前記光源特性は発光特性である、請求項1に記載の光源駆動回路。
- 前記第1光源は放電管であり、前記第2光源は発光ダイオードである、請求項1に記載の光源駆動回路。
- 第1光源と、基準温度以下の環境温度で少なくとも一つの光源特性が前記第1光源より高い第2光源と、請求項1から7のいずれかに記載の光源駆動回路と、を備えることを特徴とする、光源部品。
- 表示パネルと、該表示パネルの一方主面に対向配置される請求項8に記載の光源部品と、を備えることを特徴とする、表示装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008532037A JP4801159B2 (ja) | 2006-08-31 | 2007-08-23 | 光源駆動回路および該光源駆動回路を備える光源部品、並びに表示装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006235494 | 2006-08-31 | ||
JP2006235494 | 2006-08-31 | ||
JP2008532037A JP4801159B2 (ja) | 2006-08-31 | 2007-08-23 | 光源駆動回路および該光源駆動回路を備える光源部品、並びに表示装置 |
PCT/JP2007/066385 WO2008026508A1 (fr) | 2006-08-31 | 2007-08-23 | Circuit de commande de source de lumière, composant de source de lumière dotée du circuit de commande de source de lumière et appareil d'affichage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2008026508A1 JPWO2008026508A1 (ja) | 2010-01-21 |
JP4801159B2 true JP4801159B2 (ja) | 2011-10-26 |
Family
ID=39135791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008532037A Expired - Fee Related JP4801159B2 (ja) | 2006-08-31 | 2007-08-23 | 光源駆動回路および該光源駆動回路を備える光源部品、並びに表示装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100007283A1 (ja) |
EP (1) | EP2063687A4 (ja) |
JP (1) | JP4801159B2 (ja) |
CN (1) | CN101523985B (ja) |
WO (1) | WO2008026508A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8075668B2 (en) | 2005-03-29 | 2011-12-13 | Dresser-Rand Company | Drainage system for compressor separators |
DE102009054067A1 (de) * | 2009-11-20 | 2011-05-26 | Osram Opto Semiconductors Gmbh | Licht emittierende Vorrichtung |
US8663483B2 (en) | 2010-07-15 | 2014-03-04 | Dresser-Rand Company | Radial vane pack for rotary separators |
WO2012029360A1 (ja) * | 2010-08-30 | 2012-03-08 | シャープ株式会社 | 照明装置および表示装置 |
US8994237B2 (en) | 2010-12-30 | 2015-03-31 | Dresser-Rand Company | Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems |
EP2659277B8 (en) | 2010-12-30 | 2018-05-23 | Dresser-Rand Company | Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems |
WO2012138545A2 (en) | 2011-04-08 | 2012-10-11 | Dresser-Rand Company | Circulating dielectric oil cooling system for canned bearings and canned electronics |
EP2715167B1 (en) | 2011-05-27 | 2017-08-30 | Dresser-Rand Company | Segmented coast-down bearing for magnetic bearing systems |
US8851756B2 (en) | 2011-06-29 | 2014-10-07 | Dresser-Rand Company | Whirl inhibiting coast-down bearing for magnetic bearing systems |
RU2595783C2 (ru) * | 2011-11-14 | 2016-08-27 | Конинклейке Филипс Н.В. | Система и способ регулировки максимального выходного управляющего напряжения твердотельного осветительного устройства |
SI2900038T1 (sl) * | 2014-01-27 | 2017-05-31 | Odelo Gmbh | Svetilno sredstvo in z njim opremljena luč motornega vozila |
US9603213B1 (en) | 2016-02-05 | 2017-03-21 | Abl Ip Holding Llc | Controlling multiple groups of LEDs |
US10874006B1 (en) | 2019-03-08 | 2020-12-22 | Abl Ip Holding Llc | Lighting fixture controller for controlling color temperature and intensity |
CN113189831B (zh) * | 2020-01-14 | 2023-04-25 | 青岛海信激光显示股份有限公司 | 激光投影设备及其驱动方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000048970A (ja) * | 1998-07-28 | 2000-02-18 | Matsushita Electric Works Ltd | 補助照明装置 |
JP2003330424A (ja) * | 2002-05-10 | 2003-11-19 | Hitachi Ltd | 液晶表示装置 |
JP2004139876A (ja) * | 2002-10-18 | 2004-05-13 | Sharp Corp | 照明装置、バックライト装置、液晶表示装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0241667A (ja) | 1988-07-29 | 1990-02-09 | Kuroi Electric Ind Co | けい光灯点灯用インバータ回路 |
JP3927011B2 (ja) * | 2001-08-20 | 2007-06-06 | 株式会社 日立ディスプレイズ | 液晶表示装置とその駆動回路 |
US6995355B2 (en) * | 2003-06-23 | 2006-02-07 | Advanced Optical Technologies, Llc | Optical integrating chamber lighting using multiple color sources |
JP2006091610A (ja) * | 2004-09-27 | 2006-04-06 | Sanyo Electric Co Ltd | 投写型映像表示装置 |
-
2007
- 2007-08-23 EP EP07806014A patent/EP2063687A4/en not_active Withdrawn
- 2007-08-23 US US12/439,060 patent/US20100007283A1/en not_active Abandoned
- 2007-08-23 WO PCT/JP2007/066385 patent/WO2008026508A1/ja active Application Filing
- 2007-08-23 CN CN2007800319123A patent/CN101523985B/zh not_active Expired - Fee Related
- 2007-08-23 JP JP2008532037A patent/JP4801159B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000048970A (ja) * | 1998-07-28 | 2000-02-18 | Matsushita Electric Works Ltd | 補助照明装置 |
JP2003330424A (ja) * | 2002-05-10 | 2003-11-19 | Hitachi Ltd | 液晶表示装置 |
JP2004139876A (ja) * | 2002-10-18 | 2004-05-13 | Sharp Corp | 照明装置、バックライト装置、液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2063687A4 (en) | 2010-11-24 |
JPWO2008026508A1 (ja) | 2010-01-21 |
US20100007283A1 (en) | 2010-01-14 |
CN101523985A (zh) | 2009-09-02 |
EP2063687A1 (en) | 2009-05-27 |
CN101523985B (zh) | 2013-01-02 |
WO2008026508A1 (fr) | 2008-03-06 |
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