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WO2009019989A1 - Dispositif de rétroéclairage, dispositif d'affichage à cristaux liquides, élément optique et feuille à lentilles lenticulaires - Google Patents

Dispositif de rétroéclairage, dispositif d'affichage à cristaux liquides, élément optique et feuille à lentilles lenticulaires Download PDF

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Publication number
WO2009019989A1
WO2009019989A1 PCT/JP2008/063309 JP2008063309W WO2009019989A1 WO 2009019989 A1 WO2009019989 A1 WO 2009019989A1 JP 2008063309 W JP2008063309 W JP 2008063309W WO 2009019989 A1 WO2009019989 A1 WO 2009019989A1
Authority
WO
WIPO (PCT)
Prior art keywords
lenticular lens
lens sheet
backlight device
cylindrical lenses
liquid crystal
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/JP2008/063309
Other languages
English (en)
Japanese (ja)
Inventor
Yukinori Yamada
Motoshi Uehara
Nobuyasu Ishihara
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Publication of WO2009019989A1 publication Critical patent/WO2009019989A1/fr
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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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

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)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un dispositif de rétroéclairage qui comporte une source de lumière de surface, une feuille à lentilles lenticulaires (31) et une feuille de diffusion (32). La source de lumière de surface comporte des sources de lumière linéaires disposées les unes à côté des autres. La feuille à lentilles lenticulaires (31) est installée sur la zone de lumière de surface. La feuille à lentilles lenticulaires (31) comporte des lentilles cylindriques disposées les unes à côté des autres dans la direction dans laquelle les sources de lumière linéaires sont disposées les unes à côté des autres, et comporte également des sections plates formées chacune entre des lentilles cylindriques adjacentes. Le pas Pc des lentilles cylindriques, la largeur Wf d'une section plate et la hauteur Hc d'une lentille cylindrique satisfont la formule (1) et la formule (2). La feuille de diffusion (32) est installée sur les lentilles cylindriques et a un voile dans la plage de 70 % à 80 %. Dans le dispositif de rétroéclairage, une luminance irrégulière est supprimée et la largeur de la dépendance de la luminance à l'angle de visualisation dans la direction d'un axe spécifique est maintenue large. 1/16 ≤ Wf/Pc < 1/6 (1) 5/16 ≤ Hc/Pc ≤ 1/2 (2).
PCT/JP2008/063309 2007-08-08 2008-07-24 Dispositif de rétroéclairage, dispositif d'affichage à cristaux liquides, élément optique et feuille à lentilles lenticulaires Ceased WO2009019989A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-206168 2007-08-08
JP2007206168A JP4163243B1 (ja) 2007-08-08 2007-08-08 バックライト装置、液晶表示装置、光学部材及びレンチキュラレンズシート

Publications (1)

Publication Number Publication Date
WO2009019989A1 true WO2009019989A1 (fr) 2009-02-12

Family

ID=39916210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063309 Ceased WO2009019989A1 (fr) 2007-08-08 2008-07-24 Dispositif de rétroéclairage, dispositif d'affichage à cristaux liquides, élément optique et feuille à lentilles lenticulaires

Country Status (3)

Country Link
JP (1) JP4163243B1 (fr)
TW (1) TW200914947A (fr)
WO (1) WO2009019989A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020129015A3 (fr) * 2018-12-20 2020-09-03 3M Innovative Properties Company Film de commande de lumière avec film tournant et diffuseur lenticulaire pour amélioration de vue dans le plan horizontal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5822103B2 (ja) * 2009-10-22 2015-11-24 東洋紡株式会社 液晶表示装置用視野角向上フィルム、視野角向上機能付保護フィルム及び液晶表示装置
WO2011048987A1 (fr) * 2009-10-22 2011-04-28 東洋紡績株式会社 Fil d'augmentation de l'angle de vue pour un dispositif d'affichage à cristaux liquides, film de protection avec fonction d'augmentation de l'angle de vue, et dispositif d'affichage à cristaux liquides
JP2012220662A (ja) * 2011-04-07 2012-11-12 Toyobo Co Ltd 視野角向上フィルム及び液晶表示装置
JP2012226158A (ja) * 2011-04-20 2012-11-15 Toyobo Co Ltd 視野角向上フィルム、視野角向上フィルム積層体及び液晶表示装置
CN103578367A (zh) * 2013-11-13 2014-02-12 广东威创视讯科技股份有限公司 一种led显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11142622A (ja) * 1997-11-13 1999-05-28 Dainippon Printing Co Ltd レンズフィルム、面光源装置、液晶表示装置
JP2004006256A (ja) * 2002-03-26 2004-01-08 Sharp Corp バックライト及び液晶表示装置
JP2006164719A (ja) * 2004-12-07 2006-06-22 Sumitomo Rubber Ind Ltd 直下型バックライト
JP2007012517A (ja) * 2005-07-01 2007-01-18 Dainippon Printing Co Ltd 面光源装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11142622A (ja) * 1997-11-13 1999-05-28 Dainippon Printing Co Ltd レンズフィルム、面光源装置、液晶表示装置
JP2004006256A (ja) * 2002-03-26 2004-01-08 Sharp Corp バックライト及び液晶表示装置
JP2006164719A (ja) * 2004-12-07 2006-06-22 Sumitomo Rubber Ind Ltd 直下型バックライト
JP2007012517A (ja) * 2005-07-01 2007-01-18 Dainippon Printing Co Ltd 面光源装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020129015A3 (fr) * 2018-12-20 2020-09-03 3M Innovative Properties Company Film de commande de lumière avec film tournant et diffuseur lenticulaire pour amélioration de vue dans le plan horizontal
CN113196113A (zh) * 2018-12-20 2021-07-30 3M创新有限公司 用于在水平平面中增强视图的具有转向膜和透镜状扩散片的光控膜
US12189150B2 (en) 2018-12-20 2025-01-07 3M Innovative Properties Company Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane

Also Published As

Publication number Publication date
TW200914947A (en) 2009-04-01
JP2009043506A (ja) 2009-02-26
JP4163243B1 (ja) 2008-10-08

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