JP4652527B2 - 光拡散性シート - Google Patents

光拡散性シート Download PDF

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Publication number
JP4652527B2
JP4652527B2 JP2000143465A JP2000143465A JP4652527B2 JP 4652527 B2 JP4652527 B2 JP 4652527B2 JP 2000143465 A JP2000143465 A JP 2000143465A JP 2000143465 A JP2000143465 A JP 2000143465A JP 4652527 B2 JP4652527 B2 JP 4652527B2
Authority
JP
Japan
Prior art keywords
light
light diffusing
sheet
resin particles
resin
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.)
Expired - Lifetime
Application number
JP2000143465A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001324609A5 (enExample
JP2001324609A (ja
Inventor
剛久 木村
健治 福井
淳二 市之川
輝雄 大沼
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.)
Kimoto Co Ltd
Original Assignee
Kimoto 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 Kimoto Co Ltd filed Critical Kimoto Co Ltd
Priority to JP2000143465A priority Critical patent/JP4652527B2/ja
Priority to US09/854,609 priority patent/US6602596B2/en
Publication of JP2001324609A publication Critical patent/JP2001324609A/ja
Publication of JP2001324609A5 publication Critical patent/JP2001324609A5/ja
Application granted granted Critical
Publication of JP4652527B2 publication Critical patent/JP4652527B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G02B5/0226—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
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/06—Substrate layer characterised by chemical composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24364—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] with transparent or protective coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)
  • Laminated Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
JP2000143465A 2000-05-16 2000-05-16 光拡散性シート Expired - Lifetime JP4652527B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000143465A JP4652527B2 (ja) 2000-05-16 2000-05-16 光拡散性シート
US09/854,609 US6602596B2 (en) 2000-05-16 2001-05-15 Light diffusion sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000143465A JP4652527B2 (ja) 2000-05-16 2000-05-16 光拡散性シート

Publications (3)

Publication Number Publication Date
JP2001324609A JP2001324609A (ja) 2001-11-22
JP2001324609A5 JP2001324609A5 (enExample) 2007-07-12
JP4652527B2 true JP4652527B2 (ja) 2011-03-16

Family

ID=18650280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000143465A Expired - Lifetime JP4652527B2 (ja) 2000-05-16 2000-05-16 光拡散性シート

Country Status (2)

Country Link
US (1) US6602596B2 (enExample)
JP (1) JP4652527B2 (enExample)

Families Citing this family (59)

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JP4945032B2 (ja) * 2001-05-08 2012-06-06 恵和株式会社 反射シート及びこれを用いたバックライトユニット
KR200248620Y1 (ko) * 2001-06-09 2001-10-31 김경환 목지압 넥타이
US6906761B2 (en) * 2001-09-19 2005-06-14 Keiwa Inc. Reflection sheet and backlight unit using the same
KR100951285B1 (ko) * 2002-03-06 2010-04-02 키모토 컴파니 리미티드 광확산 시이트 및 면 광원소자
US7072115B2 (en) * 2002-03-26 2006-07-04 Keiwa Inc. Light diffusion sheet and backlight unit using the same
US20030214719A1 (en) * 2002-05-16 2003-11-20 Eastman Kodak Company Light diffuser containing perimeter light director
JP2004093848A (ja) * 2002-08-30 2004-03-25 Toppan Printing Co Ltd 光拡散性スクリーンおよびこのスクリーンを用いた表示装置
JP4574942B2 (ja) * 2002-10-28 2010-11-04 株式会社 日立ディスプレイズ 液晶表示装置
JP4800549B2 (ja) * 2002-12-18 2011-10-26 恵和株式会社 光学シート及びこれを用いたバックライトユニット
DE10336130A1 (de) * 2003-08-04 2005-02-24 Röhm GmbH & Co. KG Streuscheibe für LCD-Anwendungen, Verfahren zu deren Herstellung und Verwendung
US20050069678A1 (en) * 2003-09-25 2005-03-31 General Electric Company Joined multi functional optical device
JP2005107068A (ja) * 2003-09-30 2005-04-21 Nippon Shokubai Co Ltd 光学シート用組成物
ATE395630T1 (de) * 2004-03-12 2008-05-15 Evonik Roehm Gmbh Rückprojektionsschirm für die 3d-projektion, sowie verfahren zu dessen herstellung
TWI310471B (en) * 2004-05-25 2009-06-01 Au Optronics Corp Backlight module equipped with brightness convergence function
TWI289217B (en) * 2004-07-16 2007-11-01 Hon Hai Prec Ind Co Ltd Light guide plate
US20060103777A1 (en) * 2004-11-15 2006-05-18 3M Innovative Properties Company Optical film having a structured surface with rectangular based prisms
US7220026B2 (en) * 2004-12-30 2007-05-22 3M Innovative Properties Company Optical film having a structured surface with offset prismatic structures
US7320538B2 (en) * 2004-12-30 2008-01-22 3M Innovative Properties Company Optical film having a structured surface with concave pyramid-shaped structures
US7416309B2 (en) * 2004-12-30 2008-08-26 3M Innovative Properties Company Optical film having a surface with rounded structures
JP5102955B2 (ja) * 2005-01-06 2012-12-19 株式会社ジロオコーポレートプラン 光拡散シート及びこれを用いたバックライトユニット
US20060250707A1 (en) * 2005-05-05 2006-11-09 3M Innovative Properties Company Optical film having a surface with rounded pyramidal structures
US20060286395A1 (en) * 2005-06-15 2006-12-21 Konica Minolta Medical & Graphic, Inc. Optical film and support thereof
US20070024994A1 (en) * 2005-07-29 2007-02-01 3M Innovative Properties Company Structured optical film with interspersed pyramidal structures
JP5102951B2 (ja) * 2005-10-14 2012-12-19 株式会社ジロオコーポレートプラン 光拡散シート及びこれを用いたバックライトユニット
JP5270170B2 (ja) * 2006-01-24 2013-08-21 株式会社きもと 光学フィルムおよびそれを用いたバックライト装置
US20080002256A1 (en) 2006-06-30 2008-01-03 3M Innovative Properties Company Optical article including a beaded layer
JP5176958B2 (ja) * 2006-08-02 2013-04-03 旭硝子株式会社 光拡散層形成用塗布液および光拡散板
US7905650B2 (en) * 2006-08-25 2011-03-15 3M Innovative Properties Company Backlight suitable for display devices
JP2008139736A (ja) * 2006-12-05 2008-06-19 Sumitomo Chemical Co Ltd 光拡散板
US7567383B2 (en) * 2007-02-14 2009-07-28 Sony Corporation Anti-glare film, method for manufacturing the same, and display device using the same
WO2008117720A1 (ja) * 2007-03-26 2008-10-02 Kimoto Co., Ltd. バックライト装置
JP2008282010A (ja) * 2007-04-13 2008-11-20 Nippon Shokubai Co Ltd 光拡散板
WO2008140108A1 (ja) * 2007-05-09 2008-11-20 Sony Corporation 防眩性フィルムおよびその製造方法、並びにそれを用いた表示装置
KR100916502B1 (ko) 2007-08-10 2009-09-08 삼성전기주식회사 초소형 촬상 광학계
WO2009041279A1 (ja) * 2007-09-27 2009-04-02 Kimoto Co., Ltd. 表面凹凸フィルム及び光拡散性シート
TWI384283B (zh) * 2007-10-04 2013-02-01 Au Optronics Corp 發光二極體之背光模組
WO2009088247A2 (ko) * 2008-01-10 2009-07-16 Kolon Industries, Inc. 광학 시트
CN101910879B (zh) * 2008-01-24 2013-10-09 木本股份有限公司 光扩散性薄片及使用其的背光装置
KR100867919B1 (ko) * 2008-02-29 2008-11-10 주식회사 엘엠에스 광학소자, 이를 포함하는 백라이트 유닛 및 액정표시장치
JP2010103068A (ja) * 2008-10-27 2010-05-06 Kuroda Denki Kk 導光板の製造方法、導光板及び光源装置
KR101040552B1 (ko) * 2008-11-06 2011-06-16 엘지전자 주식회사 광학 필름, 이를 포함하는 백라이트 유닛 및 액정표시장치
US20100128351A1 (en) * 2008-11-21 2010-05-27 3M Innovative Properties Company Curved sided cone structures for controlling gain and viewing angle in an optical film
US20100129617A1 (en) * 2008-11-21 2010-05-27 Corrigan Thomas R Laser ablation tooling via sparse patterned masks
US20110070398A1 (en) * 2009-09-18 2011-03-24 3M Innovative Properties Company Laser ablation tooling via distributed patterned masks
KR101718571B1 (ko) 2009-10-23 2017-03-21 쓰리엠 이노베이티브 프로퍼티즈 컴파니 광학 구조물 및 그의 제조 방법
KR101696005B1 (ko) * 2009-12-17 2017-01-12 키모토 컴파니 리미티드 광확산성 시트 및 이를 사용한 백라이트
CN103154777B (zh) 2010-10-20 2015-11-25 3M创新有限公司 具有互连空隙的低折射率漫射体元件
TWI475723B (zh) * 2010-12-16 2015-03-01 Ind Tech Res Inst 發光元件
US9383484B2 (en) * 2011-03-28 2016-07-05 Kimoto Co. Ltd. Light-shielding material for optical instrument
KR102046290B1 (ko) * 2011-03-28 2019-11-18 키모토 컴파니 리미티드 광학기기용 차광재 및 그의 제조방법
US9164642B2 (en) * 2011-08-02 2015-10-20 Panasonic Intellectual Property Management Co., Ltd. Touch panel
CN102540290B (zh) * 2012-02-03 2014-04-16 凯鑫森(上海)功能性薄膜产业有限公司 扩散片及液晶显示装置
TW201438936A (zh) * 2013-04-03 2014-10-16 Hon Hai Prec Ind Co Ltd 車燈系統
WO2016040308A1 (en) 2014-09-08 2016-03-17 Qd Vision, Inc. Quantum dot-containing materials and products including same
CN105182455B (zh) * 2015-07-20 2017-10-03 苏州环明电子科技有限公司 扩散板的生产方法
JP7286269B2 (ja) * 2018-03-23 2023-06-05 恵和株式会社 バックライトユニット
JP7482444B2 (ja) * 2020-12-25 2024-05-14 パナソニックＩｐマネジメント株式会社 導光板、面光源装置、照明装置、建築部材及び導光板の製造方法
US12032244B1 (en) 2023-04-13 2024-07-09 Tcl China Star Optoelectronics Technology Co., Ltd. Light diffusion film, polarizer, and liquid crystal display device
CN116106999B (zh) * 2023-04-13 2023-08-22 Tcl华星光电技术有限公司 光扩散膜及偏光片

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JP2958191B2 (ja) * 1992-08-11 1999-10-06 株式会社きもと 光拡散性シート
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JP3352832B2 (ja) * 1993-10-27 2002-12-03 富士写真フイルム株式会社 光拡散板
JP3545447B2 (ja) * 1994-02-04 2004-07-21 大日本印刷株式会社 光拡散フィルム
JPH09113708A (ja) * 1995-10-19 1997-05-02 Dainippon Printing Co Ltd 光拡散フィルム
JP3373106B2 (ja) * 1996-03-27 2003-02-04 株式会社きもと 光学フィルム
JPH1096806A (ja) * 1996-09-20 1998-04-14 Dainippon Printing Co Ltd ディスプレイ用反射材
JPH10239504A (ja) * 1997-02-25 1998-09-11 Nitto Denko Corp 光拡散フィルム
JP3520903B2 (ja) * 1998-04-22 2004-04-19 積水化成品工業株式会社 光拡散剤粒子及び光拡散性シート
JP3515401B2 (ja) * 1998-12-18 2004-04-05 大日本印刷株式会社 防眩フィルム、偏光板及び透過型表示装置

Also Published As

Publication number Publication date
US6602596B2 (en) 2003-08-05
US20020009573A1 (en) 2002-01-24
JP2001324609A (ja) 2001-11-22

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