WO2009078439A1 - Pellicule optique et unité de rétroéclairage qui utilise celle-ci - Google Patents

Pellicule optique et unité de rétroéclairage qui utilise celle-ci Download PDF

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Publication number
WO2009078439A1
WO2009078439A1 PCT/JP2008/072992 JP2008072992W WO2009078439A1 WO 2009078439 A1 WO2009078439 A1 WO 2009078439A1 JP 2008072992 W JP2008072992 W JP 2008072992W WO 2009078439 A1 WO2009078439 A1 WO 2009078439A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical sheet
backlight unit
ridges
ccfl
same
Prior art date
Application number
PCT/JP2008/072992
Other languages
English (en)
Japanese (ja)
Inventor
Yuji Kurokawa
Original Assignee
Takiron 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 Takiron Co., Ltd. filed Critical Takiron Co., Ltd.
Priority to JP2009546284A priority Critical patent/JPWO2009078439A1/ja
Publication of WO2009078439A1 publication Critical patent/WO2009078439A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • G02F1/133606—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)

Abstract

La présente invention concerne une pellicule optique (1) munie d'un ensemble (S) formé de façon à être disposé de manière répétée sur la surface supérieure de la pellicule, l'ensemble (S) étant constitué d'une pluralité de nervures (1a - 1c) qui possèdent chacune une forme de triangle isocèle avec différents angles de base, les irrégularités de brillance selon les distances par rapport au CCFL (2) pouvant être éliminées et la pellicule optique ne dépendant pas d'une position du CCFL (2) ; et une unité de rétroéclairage qui utilise la pellicule optique. Une pellicule optique (1) utilisée pour une unité de rétroéclairage de type direct est munie d'un certain nombre de nervures convexes formées de façon à être disposées sur la surface supérieure de la pellicule optique (1), les nervures situées dans une région de la pellicule optique (1) correspondant à chaque CCFL (2) étant constituées d'autres ensembles répétés (S) de trois types de nervures (1a-1c) ayant des formes mutuellement différentes.
PCT/JP2008/072992 2007-12-18 2008-12-17 Pellicule optique et unité de rétroéclairage qui utilise celle-ci WO2009078439A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009546284A JPWO2009078439A1 (ja) 2007-12-18 2008-12-17 光学シート及びこれを用いたバックライトユニット

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007325939 2007-12-18
JP2007-325939 2007-12-18

Publications (1)

Publication Number Publication Date
WO2009078439A1 true WO2009078439A1 (fr) 2009-06-25

Family

ID=40795552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/072992 WO2009078439A1 (fr) 2007-12-18 2008-12-17 Pellicule optique et unité de rétroéclairage qui utilise celle-ci

Country Status (3)

Country Link
JP (1) JPWO2009078439A1 (fr)
KR (1) KR20100095536A (fr)
WO (1) WO2009078439A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011128453A (ja) * 2009-12-18 2011-06-30 Takiron Co Ltd 光学シート及びこれを用いたバックライトユニット
WO2012043326A1 (fr) * 2010-09-28 2012-04-05 住友化学株式会社 Élément optique soumis à un traitement anti-éblouissement
JP2017228432A (ja) * 2016-06-22 2017-12-28 スタンレー電気株式会社 車両用灯具
WO2023105372A1 (fr) * 2021-12-07 2023-06-15 3M Innovative Properties Company Surface microstructurée et articles présentant une moindre visibilité des rayures et procédés associés
EP2887115B1 (fr) * 2013-12-18 2024-10-09 ERCO GmbH Éclairage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014092507A1 (fr) * 2012-12-14 2014-06-19 제일모직 주식회사 Plaque de guide de lumière multifaisceaux et dispositif d'affichage à cristaux liquides la comprenant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10214035A (ja) * 1997-01-30 1998-08-11 Canon Inc バックライト装置及びこれを用いた液晶表示装置
JP2007094400A (ja) * 2005-09-27 2007-04-12 Samsung Electronics Co Ltd 導光板、それを有するバックライトアセンブリ及び表示装置
WO2007049618A1 (fr) * 2005-10-28 2007-05-03 Zeon Corporation Plaque de diffusion de lumiere et dispositif de retroeclairage direct
WO2007066729A1 (fr) * 2005-12-09 2007-06-14 Sony Corporation Dispositif d’émission de lumière de surface et affichage à cristaux liquides
JP2008146025A (ja) * 2006-11-15 2008-06-26 Sumitomo Chemical Co Ltd 光拡散板及び面光源装置並びに液晶表示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10214035A (ja) * 1997-01-30 1998-08-11 Canon Inc バックライト装置及びこれを用いた液晶表示装置
JP2007094400A (ja) * 2005-09-27 2007-04-12 Samsung Electronics Co Ltd 導光板、それを有するバックライトアセンブリ及び表示装置
WO2007049618A1 (fr) * 2005-10-28 2007-05-03 Zeon Corporation Plaque de diffusion de lumiere et dispositif de retroeclairage direct
WO2007066729A1 (fr) * 2005-12-09 2007-06-14 Sony Corporation Dispositif d’émission de lumière de surface et affichage à cristaux liquides
JP2008146025A (ja) * 2006-11-15 2008-06-26 Sumitomo Chemical Co Ltd 光拡散板及び面光源装置並びに液晶表示装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011128453A (ja) * 2009-12-18 2011-06-30 Takiron Co Ltd 光学シート及びこれを用いたバックライトユニット
WO2012043326A1 (fr) * 2010-09-28 2012-04-05 住友化学株式会社 Élément optique soumis à un traitement anti-éblouissement
EP2887115B1 (fr) * 2013-12-18 2024-10-09 ERCO GmbH Éclairage
JP2017228432A (ja) * 2016-06-22 2017-12-28 スタンレー電気株式会社 車両用灯具
WO2023105372A1 (fr) * 2021-12-07 2023-06-15 3M Innovative Properties Company Surface microstructurée et articles présentant une moindre visibilité des rayures et procédés associés

Also Published As

Publication number Publication date
JPWO2009078439A1 (ja) 2011-04-28
KR20100095536A (ko) 2010-08-31

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