CA2450932C - Film optique - Google Patents

Film optique Download PDF

Info

Publication number: CA2450932C
Authority: CA; Canada
Prior art keywords: light; film; angle; structures; structured
Prior art date: 1998-02-18
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

CA002450932A

Other languages

English (en)

Other versions

CA2450932A1 (fr

Inventor

Alan B. Campbell

Sanford Cobb

Wade D. Kretman

Marvin J. Niezgocki

Timothy L. Hoopman

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.)

3M Co

Original Assignee

Minnesota Mining and Manufacturing Co

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.)

1998-02-18

Filing date

1999-01-22

Publication date

2005-09-20

1999-01-22 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1999-01-22 Priority claimed from CA002318790A external-priority patent/CA2318790C/fr

1999-08-26 Publication of CA2450932A1 publication Critical patent/CA2450932A1/fr

2005-09-20 Application granted granted Critical

2005-09-20 Publication of CA2450932C publication Critical patent/CA2450932C/fr

2019-01-22 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000012788 optical film Substances 0.000 title claims abstract description 18
238000004519 manufacturing process Methods 0.000 claims description 10
229910003460 diamond Inorganic materials 0.000 claims description 8
239000010432 diamond Substances 0.000 claims description 8
238000000034 method Methods 0.000 claims description 4
238000005520 cutting process Methods 0.000 claims description 3
239000002184 metal Substances 0.000 claims 1
239000010408 film Substances 0.000 description 61
239000000463 material Substances 0.000 description 31
230000002708 enhancing effect Effects 0.000 description 14
230000007547 defect Effects 0.000 description 9
239000000758 substrate Substances 0.000 description 8
238000013459 approach Methods 0.000 description 7
230000003287 optical effect Effects 0.000 description 6
238000013461 design Methods 0.000 description 4
238000007516 diamond turning Methods 0.000 description 4
239000002537 cosmetic Substances 0.000 description 3
230000008878 coupling Effects 0.000 description 3
238000010168 coupling process Methods 0.000 description 3
238000005859 coupling reaction Methods 0.000 description 3
239000004973 liquid crystal related substance Substances 0.000 description 3
229920000515 polycarbonate Polymers 0.000 description 3
239000004417 polycarbonate Substances 0.000 description 3
229920006397 acrylic thermoplastic Polymers 0.000 description 2
238000013036 cure process Methods 0.000 description 2
238000001125 extrusion Methods 0.000 description 2
239000007788 liquid Substances 0.000 description 2
238000001000 micrograph Methods 0.000 description 2
238000009304 pastoral farming Methods 0.000 description 2
229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
239000007787 solid Substances 0.000 description 2
ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 2
239000012780 transparent material Substances 0.000 description 2
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
230000003098 cholesteric effect Effects 0.000 description 1
239000003086 colorant Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
239000005002 finish coating Substances 0.000 description 1
238000007689 inspection Methods 0.000 description 1
238000004890 malting Methods 0.000 description 1
230000001151 other effect Effects 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
229920006267 polyester film Polymers 0.000 description 1
-1 polyethylene Polymers 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000003908 quality control method Methods 0.000 description 1
238000004064 recycling Methods 0.000 description 1
238000003756 stirring Methods 0.000 description 1
238000012360 testing method Methods 0.000 description 1
230000007704 transition Effects 0.000 description 1
238000007514 turning Methods 0.000 description 1
230000000007 visual effect Effects 0.000 description 1
239000002699 waste material Substances 0.000 description 1

Landscapes

Optical Elements Other Than Lenses (AREA)
Polarising Elements (AREA)

CA002450932A 1998-02-18 1999-01-22 Film optique Expired - Lifetime CA2450932C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US2518398A	1998-02-18	1998-02-18
US09/025183		1998-02-18
CA002318790A CA2318790C (fr)	1998-02-18	1999-01-22	Couche optique

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002318790A Division CA2318790C (fr)	1998-02-18	1999-01-22	Couche optique

Publications (2)

Publication Number	Publication Date
CA2450932A1 CA2450932A1 (fr)	1999-08-26
CA2450932C true CA2450932C (fr)	2005-09-20

Family

ID=31716494

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002450932A Expired - Lifetime CA2450932C (fr)	1998-02-18	1999-01-22	Film optique

Country Status (1)

Country	Link
CA (1)	CA2450932C (fr)

1999
- 1999-01-22 CA CA002450932A patent/CA2450932C/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA2450932A1 (fr)	1999-08-26

Legal Events

Date	Code	Title	Description
2003-12-22	EEER	Examination request
2019-03-26	MKEX	Expiry	Effective date: 20190122

Publication	Publication Date	Title
EP1057049B1 (fr)	2008-10-01	Couche optique
US6581286B2 (en)	2003-06-24	Method of making tool to produce optical film
US7278771B2 (en)	2007-10-09	Optical film
KR100325673B1 (ko)	2002-02-25	렌즈 필름 및 면광원 장치
EP0879430B1 (fr)	2003-09-10	Film de renforcement de clarte avec disparition progressive du champ de vision
TW546520B (en)	2003-08-11	Backlight for liquid crystal display device
US7330315B2 (en)	2008-02-12	Light-redirecting optical structures
JP5827120B2 (ja)	2015-12-02	導光フィルム及び導光フィルムを製作するための方法
KR100867160B1 (ko)	2008-11-06	다양한 각도의 프리즘을 구비한 광학 필름
US7430358B2 (en)	2008-09-30	Elliptical diffusers used in displays
US6074069A (en)	2000-06-13	Backlight source device with circular arc diffusion units
US20080055937A1 (en)	2008-03-06	Optical film
KR20000005436A (ko)	2000-01-25	여러 가지 피치 형태로 구조화된 광학 필름
CA2450932C (fr)	2005-09-20	Film optique
KR100835155B1 (ko)	2008-06-04	광확산부재 조립체, 면광원장치 및 화상표시장치
EP1903357A2 (fr)	2008-03-26	Film optique
JP2015191181A (ja)	2015-11-02	面光源装置および表示装置
US10564458B2 (en)	2020-02-18	Connecting member and display including connecting member
KR20070101969A (ko)	2007-10-18	중공의 광 파이프
KR20160147199A (ko)	2016-12-22	광학시트 및 이를 포함하는 액정표시장치
KR20160147135A (ko)	2016-12-22	광학시트 및 이를 포함하는 액정표시장치