CN1332255C - 液晶显示装置的背照光组件构造 - Google Patents

液晶显示装置的背照光组件构造 Download PDF

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CN1332255C
CN1332255C CNB031327826A CN03132782A CN1332255C CN 1332255 C CN1332255 C CN 1332255C CN B031327826 A CNB031327826 A CN B031327826A CN 03132782 A CN03132782 A CN 03132782A CN 1332255 C CN1332255 C CN 1332255C
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illumination beam
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CN1495482A (zh
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安致旭
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Hydis Technologies Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133604Direct backlight with lamps
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133605Direct backlight including specially adapted reflectors

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本发明提供液晶显示装置的背照光组件构造。本发明的构造是安装于面板下部的液晶显示装置直下式背照光组件构造,包括:安装于面板下部的灯、通过开口部将光集中到面板下部的反射板,所述反射板以能在灯周围转动的方式安装并形成所述开口部,通过应用具有本发明反射板的背照光组件,能改善响应速度并与已有CRT类似提高动图像的画面品位,也能实现附加的高辉度。

Description

液晶显示装置的背照光组件构造
技术领域
本发明是关于一种液晶显示装置的背照光组件,更具体地说是关于为了能实现改善RT(响应时间)和提高辉度具有有反射板的闪亮(blink)式背照光构造的液晶显示装置的背照光组件构造。
背景技术
在液晶显示装置中,为了改善响应时间,使用高速响应用液晶的技术正在通用起来。并且,用VA、IPS、OCB等这样构造比通常的TN构造方面能够实现改善响应时间(RT)。除这样的面板构造以外,还能像CCD驱动方法那样在驱动上改善反应时间。
即使使用提高上述列举的各种响应速度的技术,也不可能实现象CRT那样的反应时间(RT)。
其理由是因为,CRT显示原理是脉冲光发射系统(impulse light-emitionsystem)。即,在帧(16.7ms、60Hz)期间进行一次发光(2~3ms)实现显示。
但是,因为LCD在一帧期间持续发光(16.7ms),所以与CRT比较,发生模糊(blur)现象。特别是,发生移动动图像场合的图像信号与使用者眼睛的不合适(mismatch)现象严重。这种现象不仅LCD,而且是象PDP、EL之类使用持续性(steady)光发出方法的显示装置共同现象。
如图1a和图1b所示,在显示的面板15下设置几个模块背照光11以后,实施与CRT显示装置相似原理的顺序地点灭,实现脉冲系统。
这时,为了获得可能满意程度的显示图像质量,与选通信号同时实行同步。换句话说,如图2中所示,位于给选通行施加信号的行下的背照光(backlight)11变成了动作状态(on state),如果将选通行信号移动就变成停止状态(off state)。即,背照光11的动作状态在显示器上从上到下逐渐地移动。
根据日本国日立(HITACHI)公司的研究资料,在具有6个灯的闪亮式背照光系统上,使用顺序点灭方式的场合,与持续地点亮配置灯的系统比较,减少16%的辉度,若把灯接通状态时间(duty time)设定为60%,就能够达到60%的辉度。
而且,维持接通状态时间越短,动图像越加鲜明而且形成辉度降低的折衷选择(trade-off)关系。根据日本国日立公司的研究资料报告,用于改善LCD动图像的画面模糊(blur)现象的最小接通状态时间设定为70%以上,才有改善效果。
并且,一般的发光体(CFL)的管内电流越大,灯的温度上升而使辉度效率越降低。
在闪亮式背照光系统(blink back light system)的情况下,因为灯在断开状态防止灯的温度上升,与稳定动作状态的灯比较,存在增加管内电流的余地,能够提高辉度。
这就是本发明为解决上述现有技术诸多问题而提出的方案,其目的在于提供一种具有安装了反射板的闪亮式背照光构造的液晶显示装置背照光组件构造。
发明内容
为了达到上述目的,本发明的液晶显示装置背照光组件构造是安装于面板下部的液晶显示装置直下式背照光组件构造,其特征在于包括:安装于面板下部的灯、通过开口部使光集中到面板下部的反射板,所述反射板以能在灯周围转动的方式安装并形成有所述开口部。该背照光组件构造由能使带有所述反射板的灯的闪亮转动速度与选通扫描同步的构造构成。
该背照光组件构造借助于使灯随着反射板转动的并形成在反射板上的开口部使光集中到面板下部,所述反射板在所述灯上构成为一体。
为了使灯与所述反射板一起转动,而在所述背照光组件上装有转动驱动装置,使灯和反射板转动。
在所述直下式背照光组件上用与灯独立的构造形成反射板以后,用使反射板转动的构造构成。
所述反射板具有一个转动速度,该转动速度能使被反射板反射的光朝向施加选通信号的选通行正下方照射。
在所述背照光组件上装有转动驱动装置,使灯和反射板转动。
所述背照光组件动作时灯点亮,所述背照光组件停止时灯熄灭。
本发明以上的这个目的和其它特征以及优点等,可以从对以下参照本发明最佳实施例的说明变得更清楚。
附图说明
图1a是现有技术液晶显示装置的背照光组件平面图,图1b是通过图1a的Ib-Ib线剖面图。
图2是用于说明图1液晶显示装置的闪亮式背照光组件驱动原理的示意图。
图3a是具有本发明反射板的闪亮式背照光组件平面图,图3b是通过图3a的IIIb-IIIb的线剖面图,图3c是图3b的A部放大剖面图。
图4是关于本发明液晶显示装置的背照光组件,随时间而变化的光方向与显示区域的变化图。
图5是具有本发明反射板的闪亮式背照光组件立体图。
图6是具有本发明另一实施例反射板的闪亮式背照光组件剖面图。
具体实施方式
以下,参照添加了本发明液晶显示装置的背照光组件构造的附图进行详细说明。
图3a是具有本发明反射板的部件背照光组件平面图,图3b是通过图3a的IIIb-IIIb的线剖面图,图3c是图3b的A部放大剖面图。
图4是关于本发明液晶显示装置的背照光随时间而变化的光方向与显示区域的变化图。
并且,图5是具有本发明反射板的闪亮式背照光组件立体图,图6是具有本发明另一实施例的反射板的闪亮式背照光组件剖面图。
本发明中提出以下方法,即,着眼于能够获得鲜明动图像这一点,使得闪亮式背照光系统中可以减少接通状态时间(duty time),可在不降低辉度下减少接通状态时间。
本发明的液晶显示装置的背照光组件构造,如图3a到图3c所示,在使反射板27隔离到一定区域程度以后,借助于转动装置31转动背照光灯23。这里未说明标号29是显示区域。
这时,使背照光灯23的转动速度与选通信号扫描速度一致是重要的。即,把背照光集中到与信号同步的像素上。
并且,为了使背照光灯反射板的构造能够集中光,而由挖有开口部或孔的圆形构造制成,。
上述方法是用闪亮式背照光组件,理论上可把动作状态时间减少到选通扫描时间,能使动图像模糊现象的改善和光效率达到极大,使辉度提高。
图5是详细图解表示具有本发明反射板的闪亮式背照光组件的立体图,而且是表示借助于转动驱动装置31独立转动反射板27的图。
作为本发明的另外实施例,如图6所示,固定灯23a以后,只让反射板27转动,实现闪亮式背照光组件21。这时,使反射板27的转动速度与选通扫描速度一致。
正如上述说过的一样,倘若采用具有本发明反射板的液晶显示装置的背照光组件,通过应用具有本发明反射板的背照光组件,就能够改善响应速度,与已有的CRT相类似地提高动图像的画面品位,也能实现附加的高辉度。
另一方面,本发明不限于详述过的特定理想的实施例,不仅提出要求专利保护范围内的本发明要旨,而且也包括本发明所属领域内普通技术人员可能实施各种各样的变更。

Claims (7)

1.一种液晶显示装置的背照光组件构造,是安装于面板下部的液晶显示装置直下式背照光组件构造,其特征在于包括:安装于面板下部的灯、通过开口部使光集中到面板下部的反射板,所述反射板以能在灯周围转动的方式安装并形成有所述开口部,
该背照光组件构造由能使带有所述反射板的灯的闪亮转动速度与选通扫描同步的构造构成。
2.按照权利要求1所述的液晶显示装置的背照光组件构造,其特征在于:借助于使灯随着反射板转动的并形成在反射板上的开口部使光集中到面板下部,所述反射板在所述灯上构成为一体。
3.按照权利要求2所述的液晶显示装置的背照光组件构造,其特征在于:为了使灯与所述反射板一起转动,而在所述背照光组件上装有转动驱动装置,使灯和反射板转动。
4.按照权利要求1所述的液晶显示装置的背照光组件构造,其特征在于:在所述直下式背照光组件上用与灯独立的构造形成反射板以后,用使反射板转动的构造构成。
5.按照权利要求3所述的液晶显示装置的背照光组件构造,其特征在于:所述反射板具有一个转动速度,该转动速度能使被反射板反射的光朝向施加选通信号的选通行正下方照射。
6.按照权利要求4所述的液晶显示装置的背照光组件构造,其特征在于:在所述背照光组件上装有转动驱动装置,使灯和反射板转动。
7.按照权利要求1所述的液晶显示装置的背照光组件构造,其特征在于:所述背照光组件动作时灯点亮,所述背照光组件停止时灯熄灭。
CNB031327826A 2002-08-05 2003-08-05 液晶显示装置的背照光组件构造 Expired - Lifetime CN1332255C (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019127733A1 (zh) * 2017-12-28 2019-07-04 惠州市华星光电技术有限公司 可控背光结构及显示装置

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4310243B2 (ja) 2004-06-23 2009-08-05 株式会社 日立ディスプレイズ 液晶表示装置
CN100405160C (zh) * 2004-12-03 2008-07-23 鸿富锦精密工业(深圳)有限公司 背光模组及其导光板
TW200705005A (en) * 2005-07-22 2007-02-01 Ind Tech Res Inst Liquid crystal display
US20070183151A1 (en) * 2006-02-08 2007-08-09 Litesnow, Inc. Electrical lighting system
TWI308627B (en) * 2006-12-05 2009-04-11 Ind Tech Res Inst Illumination device of flexible lighting angle
US20080186699A1 (en) * 2007-02-02 2008-08-07 Humanscale Corporation Task Light System
CN101377580B (zh) * 2007-08-31 2010-08-25 群康科技(深圳)有限公司 背光模组与液晶显示装置
JP4923110B2 (ja) * 2007-10-19 2012-04-25 ベイジン ティアンヤン プタイ インベストメント アンド コンサルティング カンパニー リミテッド 新規構造の蛍光放電灯管及びlcd表示装置
WO2009050818A1 (ja) * 2007-10-19 2009-04-23 Daiken Chemical Co., Ltd. 蛍光放電灯管及び液晶表示装置
WO2009054030A1 (en) * 2007-10-24 2009-04-30 Daiken Chemical Co., Ltd. Mercury-free flat fluorescent lamps
US8118447B2 (en) 2007-12-20 2012-02-21 Altair Engineering, Inc. LED lighting apparatus with swivel connection
WO2009081482A1 (ja) * 2007-12-25 2009-07-02 Daiken Chemical Co., Ltd. 外部電極蛍光放電灯管、平面型光源及び液晶表示装置
US8360599B2 (en) 2008-05-23 2013-01-29 Ilumisys, Inc. Electric shock resistant L.E.D. based light
US8324817B2 (en) 2008-10-24 2012-12-04 Ilumisys, Inc. Light and light sensor
US8901823B2 (en) 2008-10-24 2014-12-02 Ilumisys, Inc. Light and light sensor
US8653984B2 (en) 2008-10-24 2014-02-18 Ilumisys, Inc. Integration of LED lighting control with emergency notification systems
US7938562B2 (en) 2008-10-24 2011-05-10 Altair Engineering, Inc. Lighting including integral communication apparatus
US8214084B2 (en) 2008-10-24 2012-07-03 Ilumisys, Inc. Integration of LED lighting with building controls
US8016456B2 (en) * 2009-02-13 2011-09-13 Pilux & Danpex, S.A. Rotatable reflector support system
CN101666589B (zh) * 2009-09-23 2010-12-01 上海交通大学 组合热管换热器
WO2011119921A2 (en) 2010-03-26 2011-09-29 Altair Engineering, Inc. Led light with thermoelectric generator
WO2011119958A1 (en) 2010-03-26 2011-09-29 Altair Engineering, Inc. Inside-out led bulb
WO2012058556A2 (en) 2010-10-29 2012-05-03 Altair Engineering, Inc. Mechanisms for reducing risk of shock during installation of light tube
US9072171B2 (en) 2011-08-24 2015-06-30 Ilumisys, Inc. Circuit board mount for LED light
WO2013131002A1 (en) 2012-03-02 2013-09-06 Ilumisys, Inc. Electrical connector header for an led-based light
WO2014008463A1 (en) 2012-07-06 2014-01-09 Ilumisys, Inc. Power supply assembly for led-based light tube
US9271367B2 (en) 2012-07-09 2016-02-23 Ilumisys, Inc. System and method for controlling operation of an LED-based light
US9285084B2 (en) 2013-03-14 2016-03-15 Ilumisys, Inc. Diffusers for LED-based lights
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light
EP3097748A1 (en) 2014-01-22 2016-11-30 iLumisys, Inc. Led-based light with addressed leds
US9510400B2 (en) 2014-05-13 2016-11-29 Ilumisys, Inc. User input systems for an LED-based light
CN104317103B (zh) * 2014-11-13 2017-07-28 合肥京东方光电科技有限公司 背光模组及显示装置
CN104763923B (zh) * 2015-03-05 2017-12-29 惠州德赛信息科技有限公司 一种移动式led背光装置
US10161568B2 (en) 2015-06-01 2018-12-25 Ilumisys, Inc. LED-based light with canted outer walls
KR102626169B1 (ko) 2019-03-19 2024-01-18 삼성전자주식회사 디스플레이 장치 및 디스플레이 장치의 제어 방법
CN110032002B (zh) * 2019-04-12 2022-03-01 深圳康佳电子科技有限公司 一种灯条旋转式背光模组及显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000057832A (ja) * 1998-07-31 2000-02-25 Hitachi Ltd 照明装置及びこれを用いた液晶表示装置
JP2000111909A (ja) * 1998-10-05 2000-04-21 Canon Inc 液晶装置の照明装置
US6186649B1 (en) * 1998-04-16 2001-02-13 Honeywell International Inc. Linear illumination sources and systems
CN1316668A (zh) * 2000-03-24 2001-10-10 株式会社日立制作所 液晶显示设备

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346988A (en) * 1941-03-18 1944-04-18 Gen Electric Photographic printing apparatus
US3538322A (en) * 1968-05-29 1970-11-03 Wurlitzer Co Polarized light display
US4074124A (en) * 1976-09-22 1978-02-14 Maute Charles J Illumination apparatus for simulating night, dawn and morning, mid-day and afternoon and dusk natural light conditions
JPS5570189A (en) * 1978-11-21 1980-05-27 Sony Corp Beam index type color television picture receiver
US4229783A (en) * 1979-03-12 1980-10-21 Timex Corporation Backlight for electrooptic display
US4855818A (en) * 1984-07-04 1989-08-08 Sharp Kabushiki Kaisha Document reading apparatus with color filter
FI73325C (fi) * 1985-03-05 1987-09-10 Elkoteade Ag Foerfarande foer alstring av individuellt reglerbara bildelement och pao dessa baserad faergdisplay.
US4714983A (en) * 1985-06-10 1987-12-22 Motorola, Inc. Uniform emission backlight
US4899175A (en) * 1986-04-24 1990-02-06 Canon Kabushiki Kaisha Recording system with illumination means utilizing a plurality of fluorescent substances
US4739454A (en) * 1986-06-17 1988-04-19 Starbrite Lighting Ltd. Adjustable display light
JPS63200102A (ja) * 1987-02-17 1988-08-18 Alps Electric Co Ltd バツクライト照光装置
EP0288317B1 (en) * 1987-04-24 1993-06-16 Matsushita Electric Industrial Co., Ltd. Drive method for synchronizing scanning and modulation of flat-configuration color crt
US5038259A (en) * 1987-07-09 1991-08-06 Dai-Ichi Seiko Co., Ltd. Illumination device
US4991070A (en) * 1989-07-12 1991-02-05 Herman Miller, Inc. Sleeve for a light element
US6535187B1 (en) * 1998-04-21 2003-03-18 Lawson A. Wood Method for using a spatial light modulator
US5040101A (en) * 1990-04-19 1991-08-13 Aspenwall John E Lighting system for display cabinet
JPH04147127A (ja) * 1990-10-09 1992-05-20 Brother Ind Ltd 液晶露光装置
JPH06149162A (ja) * 1992-11-02 1994-05-27 Toshiba Corp 照明装置
BE1007433A3 (nl) * 1993-07-30 1995-06-13 Philips Electronics Nv Platte beeldweergeefinrichting, belichtingsstelsel en stralingsbron geschikt voor toepassing in een dergelijke platte beeldweergeefinrichting.
US5510965A (en) * 1994-09-15 1996-04-23 Plast-D-Fusers, Inc. Adjustable reflector/director for fluorescent light fixture
US6002452A (en) * 1995-06-08 1999-12-14 Texas Instruments Incorporated Sequential color display system with spoke synchronous frame rate conversion
US5889366A (en) * 1996-04-30 1999-03-30 Ushiodenki Kabushiki Kaisha Fluorescent lamp of the external electrode type and irradiation unit
JP3107369B2 (ja) * 1997-03-14 2000-11-06 スタンレー電気株式会社 蛍光ランプ
JPH1198330A (ja) * 1997-09-22 1999-04-09 Toshiba Corp 画像読取装置と画像読取方法および画像形成装置と画像形成方法
US6232963B1 (en) * 1997-09-30 2001-05-15 Texas Instruments Incorporated Modulated-amplitude illumination for spatial light modulator
KR20000003311A (ko) * 1998-06-27 2000-01-15 윤종용 백라이트의 휘도조절용 램프 어셈블리
JP2000075802A (ja) * 1998-08-26 2000-03-14 Matsushita Electric Ind Co Ltd バックライト装置およびバックライト素子
KR20000018710A (ko) * 1998-09-04 2000-04-06 윤종용 엘씨디 모듈
JP3689589B2 (ja) * 1999-05-20 2005-08-31 キヤノン株式会社 液晶表示装置
JP3674695B2 (ja) * 1999-06-07 2005-07-20 東芝ライテック株式会社 放電ランプ、放電ランプ装置
JP2001125547A (ja) * 1999-10-28 2001-05-11 Sony Corp 液晶表示装置及びその表示方法
JP3604606B2 (ja) * 2000-01-07 2004-12-22 コニカミノルタビジネステクノロジーズ株式会社 発光制御装置とこの発光制御装置を使用した画像形成装置
JP3535799B2 (ja) * 2000-03-30 2004-06-07 キヤノン株式会社 液晶表示装置およびその駆動方法
JP3971892B2 (ja) * 2000-09-08 2007-09-05 株式会社日立製作所 液晶表示装置
KR100476369B1 (ko) * 2002-12-30 2005-03-17 엘지.필립스 엘시디 주식회사 백라이트 유니트 및 이를 이용한 액정표시장치의 구동장치
JP5188372B2 (ja) * 2008-11-26 2013-04-24 株式会社デンソーアイティーラボラトリ 情報提示装置、方法およびプログラム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6186649B1 (en) * 1998-04-16 2001-02-13 Honeywell International Inc. Linear illumination sources and systems
JP2000057832A (ja) * 1998-07-31 2000-02-25 Hitachi Ltd 照明装置及びこれを用いた液晶表示装置
JP2000111909A (ja) * 1998-10-05 2000-04-21 Canon Inc 液晶装置の照明装置
CN1316668A (zh) * 2000-03-24 2001-10-10 株式会社日立制作所 液晶显示设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019127733A1 (zh) * 2017-12-28 2019-07-04 惠州市华星光电技术有限公司 可控背光结构及显示装置

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