WO2002069032A8 - Optical bodies containing cholesteric liquid crystal material and methods of manufacture - Google Patents

Optical bodies containing cholesteric liquid crystal material and methods of manufacture

Info

Publication number
WO2002069032A8
WO2002069032A8 PCT/US2001/044716 US0144716W WO02069032A8 WO 2002069032 A8 WO2002069032 A8 WO 2002069032A8 US 0144716 W US0144716 W US 0144716W WO 02069032 A8 WO02069032 A8 WO 02069032A8
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
cholesteric liquid
crystal layer
methods
manufacture
Prior art date
Application number
PCT/US2001/044716
Other languages
French (fr)
Other versions
WO2002069032A3 (en
WO2002069032A2 (en
Inventor
Richard J Pokorny
Marc D Radcliffe
Philip E Watson
Christopher C Bowley
Ikuko Ebihara
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 CA002438920A priority Critical patent/CA2438920A1/en
Priority to EP01989790A priority patent/EP1370902B1/en
Priority to DE60134053T priority patent/DE60134053D1/en
Priority to JP2002568093A priority patent/JP4763224B2/en
Priority to MXPA03007489A priority patent/MXPA03007489A/en
Priority to AU2002228669A priority patent/AU2002228669A1/en
Publication of WO2002069032A2 publication Critical patent/WO2002069032A2/en
Publication of WO2002069032A3 publication Critical patent/WO2002069032A3/en
Priority to KR1020037010971A priority patent/KR100906834B1/en
Publication of WO2002069032A8 publication Critical patent/WO2002069032A8/en

Links

Classifications

    • 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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements

Abstract

An optical body includes a substrate and a cholesteric liquid crystal layer disposed on the substrate. The cholesteric liquid crystal layer has a non-uniform pitch along a thickness direction of the layer and comprises a crosslinked polymer material that substantially fixes the cholesteric liquid crystal layer. The crosslinking hinders diffusion of cholesteric liquid crystal material within the cholesteric liquid crystal layer. In other methods of making an optical body, a reservoir of chiral material is provided during the process over a first cholesteric liquid crystal layer to diffuse into the layer and provide a non-uniform pitch. Alternatively, two coating compositions can be disposed on a substrate where the material of the first coating composition is not substantially soluble in the second coating composition.
PCT/US2001/044716 2001-02-22 2001-11-29 Optical bodies containing cholesteric liquid crystal material and methods of manufacture WO2002069032A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002438920A CA2438920A1 (en) 2001-02-22 2001-11-29 Optical bodies containing cholesteric liquid crystal material and methods of manufacture
EP01989790A EP1370902B1 (en) 2001-02-22 2001-11-29 Optical bodies containing cholesteric liquid crystal material and methods of manufacture
DE60134053T DE60134053D1 (en) 2001-02-22 2001-11-29 OPTICAL BODIES CONTAINING CHLOSTERIC LIQUID CRYSTAL MATERIAL, AND METHOD FOR THE PRODUCTION THEREOF;
JP2002568093A JP4763224B2 (en) 2001-02-22 2001-11-29 Optical body containing cholesteric liquid crystal material and method for producing the same
MXPA03007489A MXPA03007489A (en) 2001-02-22 2001-11-29 Optical bodies containing cholesteric liquid crystal material and methods of manufacture.
AU2002228669A AU2002228669A1 (en) 2001-02-22 2001-11-29 Optical bodies containing cholesteric liquid crystal material and methods of manufacture
KR1020037010971A KR100906834B1 (en) 2001-02-22 2003-08-21 Optical bodies containing cholesteric liquid crystal material and methods of manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/791,157 US6917399B2 (en) 2001-02-22 2001-02-22 Optical bodies containing cholesteric liquid crystal material and methods of manufacture
US09/791,157 2001-02-22

Publications (3)

Publication Number Publication Date
WO2002069032A2 WO2002069032A2 (en) 2002-09-06
WO2002069032A3 WO2002069032A3 (en) 2003-03-27
WO2002069032A8 true WO2002069032A8 (en) 2003-11-20

Family

ID=25152853

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/044716 WO2002069032A2 (en) 2001-02-22 2001-11-29 Optical bodies containing cholesteric liquid crystal material and methods of manufacture

Country Status (11)

Country Link
US (2) US6917399B2 (en)
EP (1) EP1370902B1 (en)
JP (2) JP4763224B2 (en)
KR (2) KR100862110B1 (en)
CN (1) CN1285954C (en)
AT (1) ATE395627T1 (en)
AU (1) AU2002228669A1 (en)
CA (1) CA2438920A1 (en)
DE (1) DE60134053D1 (en)
MX (1) MXPA03007489A (en)
WO (1) WO2002069032A2 (en)

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AU2002228669A1 (en) 2003-10-10
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US20060197903A1 (en) 2006-09-07
EP1370902B1 (en) 2008-05-14
CA2438920A1 (en) 2002-09-06
KR100862110B1 (en) 2008-10-09
WO2002069032A3 (en) 2003-03-27
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JP4763224B2 (en) 2011-08-31
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US7277141B2 (en) 2007-10-02
WO2002069032A2 (en) 2002-09-06
MXPA03007489A (en) 2003-12-08
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DE60134053D1 (en) 2008-06-26
EP1370902A2 (en) 2003-12-17

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