WO2008155869A1 - Light source unit and display apparatus - Google Patents

Light source unit and display apparatus Download PDF

Info

Publication number
WO2008155869A1
WO2008155869A1 PCT/JP2008/000190 JP2008000190W WO2008155869A1 WO 2008155869 A1 WO2008155869 A1 WO 2008155869A1 JP 2008000190 W JP2008000190 W JP 2008000190W WO 2008155869 A1 WO2008155869 A1 WO 2008155869A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
light diffusion
display apparatus
diffusion plate
source unit
Prior art date
Application number
PCT/JP2008/000190
Other languages
French (fr)
Japanese (ja)
Inventor
Keiji Hayashi
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
Publication of WO2008155869A1 publication Critical patent/WO2008155869A1/en

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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist

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)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

A support pin is provided which is fixedly mounted on a chassis via a reflective sheet to support a curved light diffusion plate, wherein a clearance gap is provided between a front edge of the support pin and the light diffusion plate which exhibits no thermal expansion. The support pin extends on a tilt towards a center position of the light diffusion plate viewing from the direction of a normal line of the bottom face on the chassis.
PCT/JP2008/000190 2007-06-20 2008-02-08 Light source unit and display apparatus WO2008155869A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007162702 2007-06-20
JP2007-162702 2007-06-20

Publications (1)

Publication Number Publication Date
WO2008155869A1 true WO2008155869A1 (en) 2008-12-24

Family

ID=40156033

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000190 WO2008155869A1 (en) 2007-06-20 2008-02-08 Light source unit and display apparatus

Country Status (1)

Country Link
WO (1) WO2008155869A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102803823A (en) * 2009-06-15 2012-11-28 夏普株式会社 Illuminating device, display device, and television receiver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005208408A (en) * 2004-01-23 2005-08-04 Nec Lcd Technologies Ltd Direct backlight and display device
WO2007000851A1 (en) * 2005-06-28 2007-01-04 Sharp Kabushiki Kaisha Illumination device for display device, display device, and television receiver
JP2007033962A (en) * 2005-07-28 2007-02-08 Sharp Corp Liquid crystal display

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005208408A (en) * 2004-01-23 2005-08-04 Nec Lcd Technologies Ltd Direct backlight and display device
WO2007000851A1 (en) * 2005-06-28 2007-01-04 Sharp Kabushiki Kaisha Illumination device for display device, display device, and television receiver
JP2007033962A (en) * 2005-07-28 2007-02-08 Sharp Corp Liquid crystal display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102803823A (en) * 2009-06-15 2012-11-28 夏普株式会社 Illuminating device, display device, and television receiver

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