JP2007178792A5 - - Google Patents

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Publication number
JP2007178792A5
JP2007178792A5 JP2005378338A JP2005378338A JP2007178792A5 JP 2007178792 A5 JP2007178792 A5 JP 2007178792A5 JP 2005378338 A JP2005378338 A JP 2005378338A JP 2005378338 A JP2005378338 A JP 2005378338A JP 2007178792 A5 JP2007178792 A5 JP 2007178792A5
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JP
Japan
Prior art keywords
light
translucent
light source
sensitive adhesive
film
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JP2005378338A
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Japanese (ja)
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JP4695509B2 (en
JP2007178792A (en
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Priority to JP2005378338A priority Critical patent/JP4695509B2/en
Priority claimed from JP2005378338A external-priority patent/JP4695509B2/en
Publication of JP2007178792A publication Critical patent/JP2007178792A/en
Publication of JP2007178792A5 publication Critical patent/JP2007178792A5/ja
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Publication of JP4695509B2 publication Critical patent/JP4695509B2/en
Expired - Fee Related legal-status Critical Current
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Claims (8)

透光性フィルム基材と、該透光性フィルム基材の第１面上に形成された微細凹凸構造層と、前記透光性フィルム基材の第２面上に形成された感圧型接着剤からなる凸部とを備えており、
前記凸部は前記透光性フィルム基材の第２面上にて異方性パターンにて離散的に形成されており、
前記凸部は透光性を持ち且つ内部に光拡散剤を含有することを特徴とする光拡散フィルム。 And the transparent film substrate, and the micro-relief structure layer formed on the first surface of the light-transmitting film substrate, a pressure sensitive adhesive was made form on the second surface of the translucent film substrate And a convex portion made of an agent ,
The convex portions are discretely formed in an anisotropic pattern on the second surface of the translucent film substrate,
Light diffusing film the convex portion, characterized that you containing a light diffusing agent therein and having a light transmitting property. 前記凸部は前記透光性フィルム基材の第２面上にて互いに略平行な線状または線分状のパターンにて形成されていることを特徴とする、請求項１に記載の光拡散フィルム。 2. The light diffusion according to claim 1, wherein the convex portions are formed in a linear or segmental pattern substantially parallel to each other on the second surface of the translucent film substrate. the film. 前記微細凹凸構造層は透光性バインダ樹脂と該透光性バインダ樹脂により保持され上部が前記透光性バインダ樹脂から突出している透光性微粒子とを含んでなることを特徴とする、請求項１〜２のいずれかに記載の光拡散フィルム。 The fine concavo-convex structure layer includes a translucent binder resin and translucent fine particles held by the translucent binder resin and having an upper portion protruding from the translucent binder resin. The light-diffusion film in any one of 1-2 . 前記透光性微粒子と前記透光性バインダ樹脂とは互いに屈折率が異なることを特徴とする、請求項３に記載の光拡散フィルム。 The light diffusing film according to claim 3, wherein the translucent fine particles and the translucent binder resin have different refractive indexes. 直下方式面光源装置において一次光源を覆うように配置される光拡散板の光出射側の表面に、請求項１〜４のいずれかの光拡散フィルムを前記凸部の感圧型接着剤により接着してなることを特徴とする複合光学素子。 The light diffusing film of any one of claims 1 to 4 is adhered to the surface of the light diffusing plate disposed so as to cover the primary light source in the direct type surface light source device with the pressure-sensitive adhesive of the convex portion. A composite optical element characterized by comprising: エッジライト方式面光源装置において一次光源からの光が導入される導光板の光出射面に、請求項１〜４のいずれかの光拡散フィルムを前記凸部の感圧型接着剤により接着してなることを特徴とする複合光学素子。 The light emitting surface of the light guide plate for introducing light thereinto from the primary light source in e Jjiraito scheme surface light source device, comprising one of the light-diffusing film according to claim 1-4 and adhered by pressure sensitive adhesive of the convex portion A composite optical element characterized by the above. エッジライト方式面光源装置において一次光源からの光が導入される導光板と組み合わせて使用されるプリズムシートのプリズム列形成面に、請求項１〜４のいずれかの光拡散フィルムを前記凸部の感圧型接着剤により接着してなることを特徴とする複合光学素子。 The light diffusion film according to any one of claims 1 to 4 is formed on a prism row forming surface of a prism sheet used in combination with a light guide plate into which light from a primary light source is introduced in an edge light type surface light source device. A composite optical element characterized by being bonded with a pressure-sensitive adhesive. エッジライト方式面光源装置において一次光源からの光が導入される導光板と組み合わせて使用されるプリズムシートのプリズム列形成面と反対側の面に、請求項１〜４のいずれかの光拡散フィルムを前記凸部の感圧型接着剤により接着してなることを特徴とする複合光学素子。
イの光学性能評価方法。 The light diffusion film according to any one of claims 1 to 4, wherein the edge light type surface light source device has a prism sheet used in combination with a light guide plate into which light from a primary light source is introduced, on a surface opposite to a prism row forming surface. Is bonded with a pressure-sensitive adhesive of the convex portion.
(B) Optical performance evaluation method.
JP2005378338A 2005-12-28 2005-12-28 Light diffusion film and composite optical element using the same Expired - Fee Related JP4695509B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005378338A JP4695509B2 (en) 2005-12-28 2005-12-28 Light diffusion film and composite optical element using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005378338A JP4695509B2 (en) 2005-12-28 2005-12-28 Light diffusion film and composite optical element using the same

Publications (3)

Publication Number Publication Date
JP2007178792A JP2007178792A (en) 2007-07-12
JP2007178792A5 true JP2007178792A5 (en) 2009-02-05
JP4695509B2 JP4695509B2 (en) 2011-06-08

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JP2005378338A Expired - Fee Related JP4695509B2 (en) 2005-12-28 2005-12-28 Light diffusion film and composite optical element using the same

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JP (1) JP4695509B2 (en)

Families Citing this family (18)

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WO2009069304A1 (en) * 2007-11-28 2009-06-04 Goyo Paper Working Co., Ltd. Lens sheet composite
JP2009175166A (en) * 2007-12-25 2009-08-06 Toppan Printing Co Ltd Optical sheet, backlight unit and display device
JP2009157074A (en) * 2007-12-26 2009-07-16 Asahi Kasei Corp Beam control unit
JP2009272067A (en) * 2008-04-30 2009-11-19 Toppan Printing Co Ltd El element, backlight device for liquid-crystal display using the element, lighting device using the element, electronic advertising display device using the element, display device using the device, and optical sheet
WO2009139380A1 (en) * 2008-05-13 2009-11-19 株式会社浅葱クリエイト Light guide fabrication method
NL1035448C2 (en) * 2008-05-20 2009-11-23 Sumitomo Chemical Co Light combination light and light diffusion plate combination for direct type LCD device, has light collection layer laminated on bottom side of light diffusion plate via adhesive layer, where bottom side is provided with unevenness
JP5369840B2 (en) * 2009-04-01 2013-12-18 ソニー株式会社 Method for manufacturing light guide plate
JP2012173441A (en) * 2011-02-21 2012-09-10 Asahi Kasei E-Materials Corp Wire grid polarizing plate
JP5503621B2 (en) * 2011-10-28 2014-05-28 住友化学株式会社 Light guide plate
JP6706033B2 (en) * 2014-07-09 2020-06-03 恵和株式会社 Optical sheet and edge light type backlight unit
KR101710097B1 (en) 2015-04-03 2017-02-27 주식회사 엘엠에스 Optical Sheet and Back Light Unit having the Same
JP2017207736A (en) * 2016-05-16 2017-11-24 恵和株式会社 Optical sheet for liquid crystal display device, backlight unit for liquid crystal display device and production method of optical sheet for liquid crystal display device
JP6744759B2 (en) * 2016-05-20 2020-08-19 恵和株式会社 Optical unit and method of manufacturing optical unit
JP7214334B2 (en) * 2016-06-14 2023-01-30 恵和株式会社 Prism sheet for backlight unit and backlight unit for liquid crystal display device
CN107831620A (en) * 2016-12-07 2018-03-23 常州华威新材料有限公司 A kind of novel and multifunctional optical compound film and preparation method thereof
CN111443408A (en) * 2019-09-25 2020-07-24 宁波激智科技股份有限公司 Brightening diffusion film and preparation method thereof
JP2023524804A (en) 2020-05-08 2023-06-13 スリーエム イノベイティブ プロパティズ カンパニー Optical structure and display system
CN116802524A (en) * 2020-12-07 2023-09-22 3M创新有限公司 Optical film, optical structure, and display system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08184704A (en) * 1995-01-06 1996-07-16 Sekisui Chem Co Ltd Optical control sheet
JP2003140145A (en) * 2001-10-31 2003-05-14 Mitsubishi Chemicals Corp Light control film, and surface light source device and liquid crystal display device using the same

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