WO2008129946A1 - 光拡散フィルムおよびそれを用いた液晶バックライトユニット - Google Patents

光拡散フィルムおよびそれを用いた液晶バックライトユニット Download PDF

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Publication number
WO2008129946A1
WO2008129946A1 PCT/JP2008/056971 JP2008056971W WO2008129946A1 WO 2008129946 A1 WO2008129946 A1 WO 2008129946A1 JP 2008056971 W JP2008056971 W JP 2008056971W WO 2008129946 A1 WO2008129946 A1 WO 2008129946A1
Authority
WO
WIPO (PCT)
Prior art keywords
light diffusive
diffusive film
liquid crystal
film
crystal backlight
Prior art date
Application number
PCT/JP2008/056971
Other languages
English (en)
French (fr)
Inventor
Mizuki Yamamoto
Hiromitsu Takahashi
Kozo Takahashi
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 JP2008549304A priority Critical patent/JP5359275B2/ja
Publication of WO2008129946A1 publication Critical patent/WO2008129946A1/ja

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
    • 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
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • 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
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0247—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of voids or pores
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)

Abstract

　本発明は、マトリックス樹脂内部に有機粒子の拡散素子を含有して構成される内部拡散フィルムの少なくとも片面に光拡散層が形成され、かつ、該光拡散層が少なくともバインダー樹脂と粒子とから構成されている光拡散フィルムに課する。本発明により、液晶バックライトに用いた際に、輝度ムラ解消、輝度の角度依存性の抑制を十分に満足させることができる優れた光拡散フィルムが提供される。
PCT/JP2008/056971 2007-04-13 2008-04-09 光拡散フィルムおよびそれを用いた液晶バックライトユニット WO2008129946A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008549304A JP5359275B2 (ja) 2007-04-13 2008-04-09 光拡散フィルムおよびそれを用いた液晶バックライトユニット

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-105565 2007-04-13
JP2007105565 2007-04-13

Publications (1)

Publication Number Publication Date
WO2008129946A1 true WO2008129946A1 (ja) 2008-10-30

Family

ID=39875474

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056971 WO2008129946A1 (ja) 2007-04-13 2008-04-09 光拡散フィルムおよびそれを用いた液晶バックライトユニット

Country Status (3)

Country Link
JP (1) JP5359275B2 (ja)
TW (1) TWI422872B (ja)
WO (1) WO2008129946A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010256431A (ja) * 2009-04-22 2010-11-11 Toppan Printing Co Ltd 積層樹脂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装置
JP2011526004A (ja) * 2009-07-22 2011-09-29 ネクソン カンパニー，リミテッド 面発光装置およびその製造方法
JP2012009187A (ja) * 2010-06-23 2012-01-12 Toyobo Co Ltd バックライト装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102928900B (zh) * 2012-10-19 2015-06-24 宁波激智科技股份有限公司 一种抗翘曲光学薄膜、其制备方法及使用该光学薄膜的显示器件
KR20180036999A (ko) * 2015-08-05 2018-04-10 쓰리엠 이노베이티브 프로퍼티즈 컴파니 광학 확산 필름 라미네이트 및 제조 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003050306A (ja) * 2001-06-01 2003-02-21 Daicel Chem Ind Ltd 異方性拡散フィルム
JP2004004777A (ja) * 2002-04-24 2004-01-08 Dainippon Printing Co Ltd 防眩性フィルム、偏光素子、および画像表示装置
JP2004103335A (ja) * 2002-09-06 2004-04-02 Daicel Chem Ind Ltd 面状光源装置
JP2005326586A (ja) * 2004-05-13 2005-11-24 Sun Tec Kk 拡散シート

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4517442B2 (ja) * 2000-03-28 2010-08-04 東レ株式会社 積層光拡散性フィルムの製造方法
JP2005352238A (ja) * 2004-06-11 2005-12-22 Dainippon Printing Co Ltd 光拡散部材
KR100665781B1 (ko) * 2004-09-10 2007-01-09 주식회사 새 한 광학특성 및 내열성과 내흡습성이 우수한 광확산판
KR100680126B1 (ko) * 2005-03-16 2007-02-07 도레이새한 주식회사 박막트랜지스터 액정디스플레이용 공극형성 광확산 시트
KR100737979B1 (ko) * 2005-03-18 2007-07-13 도레이새한 주식회사 기공이 형성된 광확산 필름
JP2007023227A (ja) * 2005-07-21 2007-02-01 Mitsubishi Engineering Plastics Corp 光拡散性部材用樹脂組成物及び光拡散性部材
KR100775850B1 (ko) * 2006-07-24 2007-11-12 도레이새한 주식회사 백라이트유니트용 광확산 시트

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003050306A (ja) * 2001-06-01 2003-02-21 Daicel Chem Ind Ltd 異方性拡散フィルム
JP2004004777A (ja) * 2002-04-24 2004-01-08 Dainippon Printing Co Ltd 防眩性フィルム、偏光素子、および画像表示装置
JP2004103335A (ja) * 2002-09-06 2004-04-02 Daicel Chem Ind Ltd 面状光源装置
JP2005326586A (ja) * 2004-05-13 2005-11-24 Sun Tec Kk 拡散シート

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010256431A (ja) * 2009-04-22 2010-11-11 Toppan Printing Co Ltd 積層樹脂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装置
JP2011526004A (ja) * 2009-07-22 2011-09-29 ネクソン カンパニー，リミテッド 面発光装置およびその製造方法
JP2012009187A (ja) * 2010-06-23 2012-01-12 Toyobo Co Ltd バックライト装置

Also Published As

Publication number Publication date
JPWO2008129946A1 (ja) 2010-07-22
JP5359275B2 (ja) 2013-12-04
TW200903037A (en) 2009-01-16
TWI422872B (zh) 2014-01-11

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