WO2010075357A1 - Internally patterned multilayer optical films using spatially selective birefringence reduction - Google Patents

Internally patterned multilayer optical films using spatially selective birefringence reduction Download PDF

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Publication number
WO2010075357A1
WO2010075357A1 PCT/US2009/069153 US2009069153W WO2010075357A1 WO 2010075357 A1 WO2010075357 A1 WO 2010075357A1 US 2009069153 W US2009069153 W US 2009069153W WO 2010075357 A1 WO2010075357 A1 WO 2010075357A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
zone
layers
reflective
optical
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.)
Ceased
Application number
PCT/US2009/069153
Other languages
English (en)
French (fr)
Inventor
William Ward Merrill
Douglas S. Dunn
Travis L. Potts
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 Innovative Properties Co
Original Assignee
3M Innovative Properties 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.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to US13/139,826 priority Critical patent/US8879151B2/en
Priority to EP09835743.7A priority patent/EP2376956A4/en
Priority to JP2011542563A priority patent/JP2012513608A/ja
Priority to KR1020117017035A priority patent/KR101689044B1/ko
Priority to CN2009801568334A priority patent/CN102317820B/zh
Publication of WO2010075357A1 publication Critical patent/WO2010075357A1/en
Anticipated expiration legal-status Critical
Priority to US14/315,778 priority patent/US9575233B2/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23—Identity cards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24—Passports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/391—Special inks absorbing or reflecting polarised light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
    • G02B5/0825—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only
    • G02B5/0841—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only comprising organic materials, e.g. polymers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G02B5/287—Interference filters comprising deposited thin solid films comprising at least one layer of organic material
    • 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
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding 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
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G02F1/133521—Interference filters
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Definitions

  • the polymers of the various layers are preferably chosen to have similar rheological properties, e.g., melt viscosities, so that they can be co-extruded without significant flow disturbances.
  • Extrusion conditions are chosen to adequately feed, melt, mix, and pump the respective polymers as feed streams or melt streams in a continuous and stable manner.
  • Temperatures used to form and maintain each of the melt streams may be chosen to be within a range that avoids freezing, crystallization, or unduly high pressure drops at the low end of the temperature range, and that avoids material degradation at the high end of the range.
  • Multilayer films 1 and 2 were made in this fashion from Cast Web 1 under the following conditions:
  • the thickness of the untreated film in the neighborhood of the treated square was 24 microns with variations between 23 and 25 microns.
  • the thickness of the treated zone was likewise measured as 24 microns over various locations, with variations between 24 and 25 microns.
  • the transmission and reflection spectra of the treated zone and a neighboring untreated zone of Patterned Film 1, for normally incident light were measured using the Perkin-Elmer 950 spectrophotometer as presented in FIGS. 13A and 13B respectively.
  • the IR-dye containing masterbatch was extruded into material stream 2 to achieve a nominal loading of 0.3 wt% in that material stream for Cast Web 4d.
  • Different loading amounts were used for the other Cast Webs 4a-c, which were otherwise made in identical fashion to Cast Web 4d.
  • the IR dye loadings of Cast Webs 4a, 4b, and 4c were calculated as 0.062, 0.105, and 0.185 wt %, respectively, and the loading for Cast Web 4d was 0.3 wt % as reported above.
  • the stack may also have one or more second areas or zones with a second degree of processing, a second reflective characteristic, and a second degree of birefringence.
  • the stack may further include one or more third areas or zones with a third degree of processing, a third reflective characteristic, and a third degree of birefringence, and so forth without limitation.
  • the first, second, third, etc. zones or areas of the stack may be arranged in any desired manner. The transition from an unprocessed first zone to a fully processed second zone may be spatially abrupt or gradual. If gradual, then areas of the film between the first and second zones may be characterized as third, fourth, etc. zones having intermediate levels of processing.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Polarising Elements (AREA)
  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)
  • Optical Filters (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)
PCT/US2009/069153 2008-12-22 2009-12-22 Internally patterned multilayer optical films using spatially selective birefringence reduction Ceased WO2010075357A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US13/139,826 US8879151B2 (en) 2008-12-22 2009-12-22 Internally patterned multilayer optical films using spatially selective birefringence reduction
EP09835743.7A EP2376956A4 (en) 2008-12-22 2009-12-22 Internally patterned multilayer optical films using spatially selective birefringence reduction
JP2011542563A JP2012513608A (ja) 2008-12-22 2009-12-22 空間的に選択的な複屈折性の低減を使用する内部パターン化多層光学フィルム
KR1020117017035A KR101689044B1 (ko) 2008-12-22 2009-12-22 공간 선택적 복굴절 감소를 사용한 내부 패턴화된 다층 광학 필름
CN2009801568334A CN102317820B (zh) 2008-12-22 2009-12-22 使用空间选择性双折射减少的内部图案化多层光学膜
US14/315,778 US9575233B2 (en) 2008-12-22 2014-06-26 Internally patterned multilayer optical films using spatially selective birefringence reduction

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US13973608P 2008-12-22 2008-12-22
US61/139,736 2008-12-22
US15799609P 2009-03-06 2009-03-06
US15800609P 2009-03-06 2009-03-06
US61/157,996 2009-03-06
US61/158,006 2009-03-06

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/139,826 A-371-Of-International US8879151B2 (en) 2008-12-22 2009-12-22 Internally patterned multilayer optical films using spatially selective birefringence reduction
US14/315,778 Division US9575233B2 (en) 2008-12-22 2014-06-26 Internally patterned multilayer optical films using spatially selective birefringence reduction

Publications (1)

Publication Number Publication Date
WO2010075357A1 true WO2010075357A1 (en) 2010-07-01

Family

ID=42288117

Family Applications (5)

Application Number Title Priority Date Filing Date
PCT/US2009/069153 Ceased WO2010075357A1 (en) 2008-12-22 2009-12-22 Internally patterned multilayer optical films using spatially selective birefringence reduction
PCT/US2009/069160 Ceased WO2010075363A1 (en) 2008-12-22 2009-12-22 Internally patterned multilayer optical films with multiple birefringent layers
PCT/US2009/069192 Ceased WO2010075383A1 (en) 2008-12-22 2009-12-22 Multilayer optical films having side-by-side polarizer/polarizer zones
PCT/US2009/069173 Ceased WO2010075373A1 (en) 2008-12-22 2009-12-22 Multilayer optical films suitable for bi-level internal patterning
PCT/US2009/069120 Ceased WO2010075340A1 (en) 2008-12-22 2009-12-22 Multilayer optical films having side-by-side mirror/polarizer zones

Family Applications After (4)

Application Number Title Priority Date Filing Date
PCT/US2009/069160 Ceased WO2010075363A1 (en) 2008-12-22 2009-12-22 Internally patterned multilayer optical films with multiple birefringent layers
PCT/US2009/069192 Ceased WO2010075383A1 (en) 2008-12-22 2009-12-22 Multilayer optical films having side-by-side polarizer/polarizer zones
PCT/US2009/069173 Ceased WO2010075373A1 (en) 2008-12-22 2009-12-22 Multilayer optical films suitable for bi-level internal patterning
PCT/US2009/069120 Ceased WO2010075340A1 (en) 2008-12-22 2009-12-22 Multilayer optical films having side-by-side mirror/polarizer zones

Country Status (6)

Country Link
US (9) US8792165B2 (enExample)
EP (5) EP2373480A4 (enExample)
JP (8) JP2012513608A (enExample)
KR (5) KR101689043B1 (enExample)
CN (5) CN102317820B (enExample)
WO (5) WO2010075357A1 (enExample)

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WO2012003215A1 (en) 2010-06-30 2012-01-05 3M Innovative Properties Company Retarder film combinations with spatially selective birefringence reduction
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WO2012012177A1 (en) 2010-06-30 2012-01-26 3M Innovative Properties Company Mask processing using films with spatially selective birefringence reduction
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US8792165B2 (en) 2008-12-22 2014-07-29 3M Innovative Properties Company Internally patterned multilayer optical films with multiple birefringent layers
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