WO2008123280A1 - Direct-lighting backlight apparatus - Google Patents

Direct-lighting backlight apparatus Download PDF

Info

Publication number
WO2008123280A1
WO2008123280A1 PCT/JP2008/055667 JP2008055667W WO2008123280A1 WO 2008123280 A1 WO2008123280 A1 WO 2008123280A1 JP 2008055667 W JP2008055667 W JP 2008055667W WO 2008123280 A1 WO2008123280 A1 WO 2008123280A1
Authority
WO
WIPO (PCT)
Prior art keywords
direct
linear light
backlight apparatus
outer diameter
lighting backlight
Prior art date
Application number
PCT/JP2008/055667
Other languages
French (fr)
Japanese (ja)
Inventor
Keisuke Tsukada
Original Assignee
Zeon Corporation
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 Zeon Corporation filed Critical Zeon Corporation
Priority to JP2009509128A priority Critical patent/JPWO2008123280A1/en
Priority to TW097110707A priority patent/TW200848879A/en
Publication of WO2008123280A1 publication Critical patent/WO2008123280A1/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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

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)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Liquid Crystal (AREA)

Abstract

Provided is a direct-lighting backlight apparatus which has high energy efficiency with less periodic illuminance nonuniformity. The direct-lighting backlight apparatus is provided with a plurality of linear light sources, light diffuser plate, and the like. The linear light source has an outer diameter of 5mm-30mm. At least a light outgoing surface or a light incoming surface has an uneven structure at least at one part. The uneven structure, which is in an area where the outer diameter of the linear light source is vertically projected on the light diffuser plate, and the uneven structure, which is in an area having the intermediate position of the adjacent linear light sources at the center and a width the same as the outer diameter of the linear light source, have different shapes.
PCT/JP2008/055667 2007-03-30 2008-03-26 Direct-lighting backlight apparatus WO2008123280A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009509128A JPWO2008123280A1 (en) 2007-03-30 2008-03-26 Direct backlight unit
TW097110707A TW200848879A (en) 2007-03-30 2008-03-26 Direct-lighting backlight apparatus

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007094143 2007-03-30
JP2007-094143 2007-03-30
JP2007147346 2007-06-01
JP2007-147346 2007-06-01

Publications (1)

Publication Number Publication Date
WO2008123280A1 true WO2008123280A1 (en) 2008-10-16

Family

ID=39830768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055667 WO2008123280A1 (en) 2007-03-30 2008-03-26 Direct-lighting backlight apparatus

Country Status (4)

Country Link
JP (1) JPWO2008123280A1 (en)
KR (1) KR20090125753A (en)
TW (1) TW200848879A (en)
WO (1) WO2008123280A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011053265A (en) * 2009-08-31 2011-03-17 Hitachi Chem Co Ltd Diffraction type condensing film and surface light source device
CN111435204A (en) * 2019-06-28 2020-07-21 宁波激智科技股份有限公司 Quadrangular frustum pyramid brightness enhancement film and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10214035A (en) * 1997-01-30 1998-08-11 Canon Inc Back light device and liquid crystal display device using the same
JPH11329030A (en) * 1998-05-21 1999-11-30 Mitsubishi Rayon Co Ltd Prism sheet and surface light source element
JP2000231103A (en) * 1999-02-09 2000-08-22 Mitsubishi Rayon Co Ltd Lens sheet and back light and liquid crystal display device using the same
JP2003022701A (en) * 2001-07-09 2003-01-24 Furukawa Electric Co Ltd:The Light box
JP2006302622A (en) * 2005-04-19 2006-11-02 Cheil Ind Co Ltd Surface light source device
JP2007003852A (en) * 2005-06-24 2007-01-11 Sony Corp Diffusion sheet, method for manufacturing diffusion sheet, backlight device and liquid crystal display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10214035A (en) * 1997-01-30 1998-08-11 Canon Inc Back light device and liquid crystal display device using the same
JPH11329030A (en) * 1998-05-21 1999-11-30 Mitsubishi Rayon Co Ltd Prism sheet and surface light source element
JP2000231103A (en) * 1999-02-09 2000-08-22 Mitsubishi Rayon Co Ltd Lens sheet and back light and liquid crystal display device using the same
JP2003022701A (en) * 2001-07-09 2003-01-24 Furukawa Electric Co Ltd:The Light box
JP2006302622A (en) * 2005-04-19 2006-11-02 Cheil Ind Co Ltd Surface light source device
JP2007003852A (en) * 2005-06-24 2007-01-11 Sony Corp Diffusion sheet, method for manufacturing diffusion sheet, backlight device and liquid crystal display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011053265A (en) * 2009-08-31 2011-03-17 Hitachi Chem Co Ltd Diffraction type condensing film and surface light source device
CN111435204A (en) * 2019-06-28 2020-07-21 宁波激智科技股份有限公司 Quadrangular frustum pyramid brightness enhancement film and preparation method thereof

Also Published As

Publication number Publication date
TW200848879A (en) 2008-12-16
JPWO2008123280A1 (en) 2010-07-15
KR20090125753A (en) 2009-12-07

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