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WO2009057443A1 - Illuminating device and liquid crystal display device - Google Patents

Illuminating device and liquid crystal display device Download PDF

Info

Publication number
WO2009057443A1
WO2009057443A1 PCT/JP2008/068570 JP2008068570W WO2009057443A1 WO 2009057443 A1 WO2009057443 A1 WO 2009057443A1 JP 2008068570 W JP2008068570 W JP 2008068570W WO 2009057443 A1 WO2009057443 A1 WO 2009057443A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
fluorescent lamp
liquid crystal
crystal display
light emitting
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.)
Ceased
Application number
PCT/JP2008/068570
Other languages
French (fr)
Japanese (ja)
Inventor
Tsutomu Fujita
Yoshinori Saito
Haruo Takada
Yutaka Sakaida
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.)
Sanyo Electric Co Ltd
Shinsei System Solutions Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Electric System Solutions Co Ltd
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 Sanyo Electric Co Ltd, Sanyo Electric System Solutions Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2009538995A priority Critical patent/JP5508021B2/en
Publication of WO2009057443A1 publication Critical patent/WO2009057443A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/133628—Illuminating devices with cooling means

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Liquid Crystal (AREA)

Abstract

Provided are an illuminating device which suitably cools a fluorescent lamp, and a liquid crystal display device. A cold cathode fluorescent lamp (205) having a light emitting section and an electrode section is arranged in a case (201). Slit-like suction holes (201a) are formed on the top and bottom side surfaces of the case (201) at positions facing the light emitting section of the cold cathode fluorescent lamp (205). Exhaust holes (201c) are formed adjacent to the electrode section of the cold cathode fluorescent lamp (205), on the bottom surface of the case (201). An exhaust fan (213) is arranged outside the case (201). External air is taken in through the suction holes (201a) by the exhaust fan (213) and exhausted through the exhaust holes (201c). At this time, the light emitting section and the electrode section are cooled by air that passes through.
PCT/JP2008/068570 2007-11-01 2008-10-14 Illuminating device and liquid crystal display device Ceased WO2009057443A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009538995A JP5508021B2 (en) 2007-11-01 2008-10-14 Illumination device and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-285575 2007-11-01
JP2007285575 2007-11-01

Publications (1)

Publication Number Publication Date
WO2009057443A1 true WO2009057443A1 (en) 2009-05-07

Family

ID=40590835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068570 Ceased WO2009057443A1 (en) 2007-11-01 2008-10-14 Illuminating device and liquid crystal display device

Country Status (2)

Country Link
JP (1) JP5508021B2 (en)
WO (1) WO2009057443A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011064991A (en) * 2009-09-18 2011-03-31 Hitachi Displays Ltd Liquid crystal display device
JP2012181940A (en) * 2011-02-28 2012-09-20 Canon Inc Display device, and its heat radiation method
WO2012157548A1 (en) * 2011-05-18 2012-11-22 シャープ株式会社 Illumination device and display device
JP2015222283A (en) * 2014-05-22 2015-12-10 三菱電機株式会社 Liquid crystal display
JP2015230751A (en) * 2014-06-03 2015-12-21 三菱重工業株式会社 Lighting device, vehicle photographing system including the same, and housing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1096898A (en) * 1996-09-19 1998-04-14 Sony Corp Liquid crystal display device
JPH10302540A (en) * 1997-04-22 1998-11-13 Sony Corp Apparatus provided with lamp cooling mechanism and lamp cooling method
JP2001297623A (en) * 2000-04-11 2001-10-26 Tama Electric Co Ltd Backlight
JP2003307492A (en) * 2002-04-15 2003-10-31 Ushio Inc Flat light source for liquid crystal display panel inspection equipment
JP2007053078A (en) * 2005-08-18 2007-03-01 Paikomu Corp Backlight device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4553762B2 (en) * 2005-03-18 2010-09-29 シャープ株式会社 Backlight unit and liquid crystal display device using the backlight unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1096898A (en) * 1996-09-19 1998-04-14 Sony Corp Liquid crystal display device
JPH10302540A (en) * 1997-04-22 1998-11-13 Sony Corp Apparatus provided with lamp cooling mechanism and lamp cooling method
JP2001297623A (en) * 2000-04-11 2001-10-26 Tama Electric Co Ltd Backlight
JP2003307492A (en) * 2002-04-15 2003-10-31 Ushio Inc Flat light source for liquid crystal display panel inspection equipment
JP2007053078A (en) * 2005-08-18 2007-03-01 Paikomu Corp Backlight device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011064991A (en) * 2009-09-18 2011-03-31 Hitachi Displays Ltd Liquid crystal display device
JP2012181940A (en) * 2011-02-28 2012-09-20 Canon Inc Display device, and its heat radiation method
WO2012157548A1 (en) * 2011-05-18 2012-11-22 シャープ株式会社 Illumination device and display device
US9046255B2 (en) 2011-05-18 2015-06-02 Sharp Kabushiki Kaisha Illumination device and display device
JP2015222283A (en) * 2014-05-22 2015-12-10 三菱電機株式会社 Liquid crystal display
JP2015230751A (en) * 2014-06-03 2015-12-21 三菱重工業株式会社 Lighting device, vehicle photographing system including the same, and housing

Also Published As

Publication number Publication date
JPWO2009057443A1 (en) 2011-03-10
JP5508021B2 (en) 2014-05-28

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