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WO2008090821A1 - Plaque de diffusion et unité de rétroéclairage l'utilisant - Google Patents

Plaque de diffusion et unité de rétroéclairage l'utilisant Download PDF

Info

Publication number
WO2008090821A1
WO2008090821A1 PCT/JP2008/050624 JP2008050624W WO2008090821A1 WO 2008090821 A1 WO2008090821 A1 WO 2008090821A1 JP 2008050624 W JP2008050624 W JP 2008050624W WO 2008090821 A1 WO2008090821 A1 WO 2008090821A1
Authority
WO
WIPO (PCT)
Prior art keywords
strength
sheet
diffusion sheet
lighting unit
back lighting
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/JP2008/050624
Other languages
English (en)
Japanese (ja)
Inventor
Hiromitsu Takahashi
Mizuki Yamamoto
Kozo Takahashi
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP2008523058A priority Critical patent/JP5470846B2/ja
Priority to KR1020137034207A priority patent/KR101450020B1/ko
Publication of WO2008090821A1 publication Critical patent/WO2008090821A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • 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
    • G02B5/02—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
    • G02B5/0226—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 having particles on the surface
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une plaque de diffusion qui a une pluralité de parties convexes avec des axes longs et courts formés sur une surface de la plaque, dans laquelle les directions longitudinales des parties convexes sont sensiblement alignées dans une direction et dans laquelle, si des rayons lumineux sont incidents sur l'autre surface à un angle d'incidence de 0°, les rayons lumineux se projetant à partir de la première surface de la plaque satisfont les deux conditions (1) et (2) suivantes : (1) en ce qui concerne la distribution de force de projection [1] dans le plan perpendiculaire à la direction longitudinale de la partie convexe, l'angle de projection avec la force égale à 50 % de la force au niveau de l'angle d'incidence de 0° se trouve dans la plage de 15-25°. (2) en ce qui concerne la distribution de la force de projection [1] dans le plan perpendiculaire à la surface de la plaque et parallèle à la direction longitudinale de la partie convexe, l'angle de projection avec la force égale à 50 % de la force au niveau de l'angle d'incidence de 0° est dans la plage de 0,5-5°. Selon l'invention, une plaque de diffusion ayant un excellent effet de diffusion anisotrope de la lumière et une unité de rétroéclairage ayant une luminosité et une uniformité supérieures sont prévues.
PCT/JP2008/050624 2007-01-24 2008-01-18 Plaque de diffusion et unité de rétroéclairage l'utilisant Ceased WO2008090821A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008523058A JP5470846B2 (ja) 2007-01-24 2008-01-18 拡散シートおよびそれを用いたバックライトユニット
KR1020137034207A KR101450020B1 (ko) 2007-01-24 2008-01-18 확산 시트 및 그것을 이용한 백라이트 유닛

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007013503 2007-01-24
JP2007-013503 2007-01-24

Publications (1)

Publication Number Publication Date
WO2008090821A1 true WO2008090821A1 (fr) 2008-07-31

Family

ID=39644398

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050624 Ceased WO2008090821A1 (fr) 2007-01-24 2008-01-18 Plaque de diffusion et unité de rétroéclairage l'utilisant

Country Status (4)

Country Link
JP (2) JP5470846B2 (fr)
KR (2) KR101450020B1 (fr)
TW (1) TWI432793B (fr)
WO (1) WO2008090821A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010016557A1 (fr) * 2008-08-07 2010-02-11 東洋紡績株式会社 Film de diffusion de lumière anisotrope, stratifié de diffusion de lumière anisotrope, stratifié de réflexion de lumière anisotrope et leurs utilisations
JP2010078774A (ja) * 2008-09-25 2010-04-08 Gamma Optical Co Ltd 光学膜片、及び、光学膜片を使用したバックライトモジュール
JP2010079292A (ja) * 2008-08-27 2010-04-08 Toppan Printing Co Ltd 光学部品の製造用金型、光学部品の製造方法、光学部品、および液晶表示ディスプレイユニット
JP2010123542A (ja) * 2008-11-21 2010-06-03 Toshiba Lighting & Technology Corp 高圧放電ランプ用拡散膜の塗布用液剤及び高圧放電ランプ
JP2010139754A (ja) * 2008-12-11 2010-06-24 Toppan Printing Co Ltd 光拡散デバイス、バックライトユニットおよびディスプレイ装置
JP2012042820A (ja) * 2010-08-20 2012-03-01 Oji Paper Co Ltd 異方性面発光ユニットおよび液晶表示装置
JP2012173688A (ja) * 2011-02-24 2012-09-10 Asahi Kasei Corp 光拡散体、及びその製造方法、並びに立体映像システム
JP2012524300A (ja) * 2009-04-15 2012-10-11 スリーエム イノベイティブ プロパティズ カンパニー 光結合を防止するための光学フィルム
JP2014160187A (ja) * 2013-02-20 2014-09-04 Suntechopt Co Ltd 自己治癒型高輝度プリズムシートおよび面光源ユニット
US9291752B2 (en) 2013-08-19 2016-03-22 3M Innovative Properties Company Retroreflecting optical construction
JP2017059472A (ja) * 2015-09-18 2017-03-23 ミネベアミツミ株式会社 照明装置
JP2017223937A (ja) * 2016-06-14 2017-12-21 恵和株式会社 バックライトユニット用プリズムシート及び液晶表示装置用バックライトユニット

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075463A (ja) * 1993-06-16 1995-01-10 Dainippon Printing Co Ltd 面光源及びそれを用いた表示装置
JP2000280267A (ja) * 1999-03-30 2000-10-10 Fuji Photo Film Co Ltd 光拡散体の製造方法
JP2001159704A (ja) * 1999-09-21 2001-06-12 Daicel Chem Ind Ltd 異方性光散乱フィルム
JP2002107510A (ja) * 2000-09-27 2002-04-10 Keiwa Inc 異方性拡散シート及びこれを用いたバックライトユニット
JP2005148095A (ja) * 2003-11-11 2005-06-09 Toppan Printing Co Ltd 光学シートとそれを用いたバックライトユニットおよびディスプレイ
JP2006058780A (ja) * 2004-08-23 2006-03-02 Nippon Hoso Kyokai <Nhk> 光学素子及び表示装置
JP2006078743A (ja) * 2004-09-09 2006-03-23 Toray Ind Inc 拡散フィルム
JP2006251395A (ja) * 2005-03-10 2006-09-21 Daicel Chem Ind Ltd 異方性散乱シート
WO2006101011A1 (fr) * 2005-03-18 2006-09-28 Hitachi Chemical Co., Ltd. Plaque de guide de lumiere et dispositif a retro-eclairage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4638752B2 (ja) * 2004-04-12 2011-02-23 株式会社クラレ 光拡散板
JP2005316095A (ja) * 2004-04-28 2005-11-10 Toray Ind Inc 異方拡散フィルム
JP4584133B2 (ja) * 2004-11-30 2010-11-17 株式会社クラレ 照明装置およびこれを用いた表示装置
JP2006284697A (ja) 2005-03-31 2006-10-19 Toppan Printing Co Ltd 液晶表示装置に適用されるバックライトユニット
JP4604823B2 (ja) 2005-05-10 2011-01-05 ソニー株式会社 面状照明装置及び液晶表示装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075463A (ja) * 1993-06-16 1995-01-10 Dainippon Printing Co Ltd 面光源及びそれを用いた表示装置
JP2000280267A (ja) * 1999-03-30 2000-10-10 Fuji Photo Film Co Ltd 光拡散体の製造方法
JP2001159704A (ja) * 1999-09-21 2001-06-12 Daicel Chem Ind Ltd 異方性光散乱フィルム
JP2002107510A (ja) * 2000-09-27 2002-04-10 Keiwa Inc 異方性拡散シート及びこれを用いたバックライトユニット
JP2005148095A (ja) * 2003-11-11 2005-06-09 Toppan Printing Co Ltd 光学シートとそれを用いたバックライトユニットおよびディスプレイ
JP2006058780A (ja) * 2004-08-23 2006-03-02 Nippon Hoso Kyokai <Nhk> 光学素子及び表示装置
JP2006078743A (ja) * 2004-09-09 2006-03-23 Toray Ind Inc 拡散フィルム
JP2006251395A (ja) * 2005-03-10 2006-09-21 Daicel Chem Ind Ltd 異方性散乱シート
WO2006101011A1 (fr) * 2005-03-18 2006-09-28 Hitachi Chemical Co., Ltd. Plaque de guide de lumiere et dispositif a retro-eclairage

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010016557A1 (fr) * 2008-08-07 2010-02-11 東洋紡績株式会社 Film de diffusion de lumière anisotrope, stratifié de diffusion de lumière anisotrope, stratifié de réflexion de lumière anisotrope et leurs utilisations
US8979330B2 (en) 2008-08-07 2015-03-17 Toyo Boseki Kabushiki Kaisha Anisotropic light-diffusing film, anisotropic light-diffusing laminate, anisotropic light-reflecting laminate, and use thereof
JP2010079292A (ja) * 2008-08-27 2010-04-08 Toppan Printing Co Ltd 光学部品の製造用金型、光学部品の製造方法、光学部品、および液晶表示ディスプレイユニット
JP2010078774A (ja) * 2008-09-25 2010-04-08 Gamma Optical Co Ltd 光学膜片、及び、光学膜片を使用したバックライトモジュール
JP2010123542A (ja) * 2008-11-21 2010-06-03 Toshiba Lighting & Technology Corp 高圧放電ランプ用拡散膜の塗布用液剤及び高圧放電ランプ
JP2010139754A (ja) * 2008-12-11 2010-06-24 Toppan Printing Co Ltd 光拡散デバイス、バックライトユニットおよびディスプレイ装置
US8964146B2 (en) 2009-04-15 2015-02-24 3M Innovative Properties Company Optical film for preventing optical coupling
JP2012524300A (ja) * 2009-04-15 2012-10-11 スリーエム イノベイティブ プロパティズ カンパニー 光結合を防止するための光学フィルム
US9551816B2 (en) 2009-04-15 2017-01-24 3M Innovative Properties Company Retroreflecting optical construction
JP2012042820A (ja) * 2010-08-20 2012-03-01 Oji Paper Co Ltd 異方性面発光ユニットおよび液晶表示装置
JP2012173688A (ja) * 2011-02-24 2012-09-10 Asahi Kasei Corp 光拡散体、及びその製造方法、並びに立体映像システム
JP2014160187A (ja) * 2013-02-20 2014-09-04 Suntechopt Co Ltd 自己治癒型高輝度プリズムシートおよび面光源ユニット
US9291752B2 (en) 2013-08-19 2016-03-22 3M Innovative Properties Company Retroreflecting optical construction
JP2017059472A (ja) * 2015-09-18 2017-03-23 ミネベアミツミ株式会社 照明装置
JP2017223937A (ja) * 2016-06-14 2017-12-21 恵和株式会社 バックライトユニット用プリズムシート及び液晶表示装置用バックライトユニット

Also Published As

Publication number Publication date
JP2014013393A (ja) 2014-01-23
TW200839305A (en) 2008-10-01
KR20090114354A (ko) 2009-11-03
KR101450020B1 (ko) 2014-10-15
JPWO2008090821A1 (ja) 2010-05-20
KR20140010463A (ko) 2014-01-24
JP5470846B2 (ja) 2014-04-16
KR101392288B1 (ko) 2014-05-07
TWI432793B (zh) 2014-04-01

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