WO2007079148A3 - An optical film composite for tf systems having integrated functions of light diffusion and reflective polarization - Google Patents

An optical film composite for tf systems having integrated functions of light diffusion and reflective polarization Download PDF

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Publication number
WO2007079148A3
WO2007079148A3 PCT/US2006/049436 US2006049436W WO2007079148A3 WO 2007079148 A3 WO2007079148 A3 WO 2007079148A3 US 2006049436 W US2006049436 W US 2006049436W WO 2007079148 A3 WO2007079148 A3 WO 2007079148A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical film
film composite
systems
light diffusion
reflective polarizing
Prior art date
Application number
PCT/US2006/049436
Other languages
French (fr)
Other versions
WO2007079148A2 (en
Inventor
Seo-Hern Lee
Myeong-Kyun Kang
Youn-Sihn Kim
Jong-Bok Choi
Original Assignee
3M Innovative Properties Co
Seo-Hern Lee
Myeong-Kyun Kang
Youn-Sihn Kim
Jong-Bok Choi
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 3M Innovative Properties Co, Seo-Hern Lee, Myeong-Kyun Kang, Youn-Sihn Kim, Jong-Bok Choi filed Critical 3M Innovative Properties Co
Publication of WO2007079148A2 publication Critical patent/WO2007079148A2/en
Publication of WO2007079148A3 publication Critical patent/WO2007079148A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
    • 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
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers

Abstract

The present invention provides an optical film composite that comprises a linear reflective polarizing film; a birefringent polymeric substrate layer placed on the reflective polarizing film; and a TF (turning film) layer placed beneath the reflective polarizing film. The optical axis of the birefringent polymeric substrate layer is oriented with respect to the transmission axis of the reflective polarizing film to have 0° to 25° of an angular difference between the axes. The optical film composite can be employed in LCD devices to improve optical performance.
PCT/US2006/049436 2005-12-30 2006-12-28 An optical film composite for tf systems having integrated functions of light diffusion and reflective polarization WO2007079148A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2005-0134699 2005-12-30
KR1020050134699A KR20070071347A (en) 2005-12-30 2005-12-30 An optical film composite for tf systems having integrated functions of light diffusion and reflective polarization

Publications (2)

Publication Number Publication Date
WO2007079148A2 WO2007079148A2 (en) 2007-07-12
WO2007079148A3 true WO2007079148A3 (en) 2007-08-30

Family

ID=38228836

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049436 WO2007079148A2 (en) 2005-12-30 2006-12-28 An optical film composite for tf systems having integrated functions of light diffusion and reflective polarization

Country Status (3)

Country Link
KR (1) KR20070071347A (en)
TW (1) TW200741262A (en)
WO (1) WO2007079148A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070071346A (en) 2005-12-30 2007-07-04 쓰리엠 이노베이티브 프로퍼티즈 컴파니 An optical film composite for bright enhancement comprising a birefringent polymer layer
KR100989311B1 (en) * 2008-05-15 2010-10-25 제일모직주식회사 Optical laminated-film with higher brightness
KR100989046B1 (en) * 2008-05-28 2010-10-25 엘지전자 주식회사 Optical Sheet, Back Light Unit And Liquid Crystal Display Device Comprising The Same
KR101052799B1 (en) * 2008-05-28 2011-07-29 엘지전자 주식회사 Optical sheet, backlight unit and liquid crystal display including the same
KR101016623B1 (en) * 2008-05-28 2011-02-23 엘지전자 주식회사 Optical sheet and Liquid Crystal Display using the same
US7787074B2 (en) 2008-05-28 2010-08-31 Lg Electronics Inc. Optical sheet, backlight unit, and liquid crystal display
JP2013513133A (en) * 2009-12-07 2013-04-18 クリスオプティクス株式会社 Polarizer and liquid crystal display with polarizer
KR101888132B1 (en) * 2017-05-26 2018-08-14 에스케이씨 주식회사 Polyester film for polarzing reflective sheet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825542A (en) * 1995-06-26 1998-10-20 Minnesota Mining And Manufacturing Company Diffusely reflecting multilayer polarizers and mirrors
US6101032A (en) * 1994-04-06 2000-08-08 3M Innovative Properties Company Light fixture having a multilayer polymeric film
USRE37377E1 (en) * 1992-10-09 2001-09-18 Asahi Glass Company, Ltd. LCD device including an illumination device having a polarized light separating sheet between a light guide and the display
US6737154B2 (en) * 1995-06-26 2004-05-18 3M Innovative Properties Company Multilayer polymer film with additional coatings or layers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37377E1 (en) * 1992-10-09 2001-09-18 Asahi Glass Company, Ltd. LCD device including an illumination device having a polarized light separating sheet between a light guide and the display
US6101032A (en) * 1994-04-06 2000-08-08 3M Innovative Properties Company Light fixture having a multilayer polymeric film
US5825542A (en) * 1995-06-26 1998-10-20 Minnesota Mining And Manufacturing Company Diffusely reflecting multilayer polarizers and mirrors
US6737154B2 (en) * 1995-06-26 2004-05-18 3M Innovative Properties Company Multilayer polymer film with additional coatings or layers

Also Published As

Publication number Publication date
WO2007079148A2 (en) 2007-07-12
TW200741262A (en) 2007-11-01
KR20070071347A (en) 2007-07-04

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