WO2002069001A8 - Cholesteric liquid crystal optical bodies and methods of manufacture - Google Patents

Cholesteric liquid crystal optical bodies and methods of manufacture

Info

Publication number
WO2002069001A8
WO2002069001A8 PCT/US2001/043988 US0143988W WO02069001A8 WO 2002069001 A8 WO2002069001 A8 WO 2002069001A8 US 0143988 W US0143988 W US 0143988W WO 02069001 A8 WO02069001 A8 WO 02069001A8
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
cholesteric liquid
manufacture
methods
crystal optical
Prior art date
Application number
PCT/US2001/043988
Other languages
French (fr)
Other versions
WO2002069001A1 (en
Inventor
Andrew J Ouderkirk
John D Munter
Marvin R Kammin
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 KR1020037010969A priority Critical patent/KR100854554B1/en
Priority to EP01991948A priority patent/EP1362248A1/en
Priority to JP2002568064A priority patent/JP2004524563A/en
Publication of WO2002069001A1 publication Critical patent/WO2002069001A1/en
Publication of WO2002069001A8 publication Critical patent/WO2002069001A8/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements

Abstract

An optical body can be formed using cholesteric liquid crystal materials. At least two different coating compositions containing cholesteric liquid crystal material are coated on a substrate. At least a portion of each composition is allowed to interdiffuse to generate a change in pitch along a thickness dimension of the optical body. This optical body can be used, for example, as a reflective polarizer in an optical display.
PCT/US2001/043988 2001-02-22 2001-11-19 Cholesteric liquid crystal optical bodies and methods of manufacture WO2002069001A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020037010969A KR100854554B1 (en) 2001-02-22 2001-11-19 Methods of manufacture of cholesteric liquid crystal optical bodies
EP01991948A EP1362248A1 (en) 2001-02-22 2001-11-19 Cholesteric liquid crystal optical bodies and methods of manufacture
JP2002568064A JP2004524563A (en) 2001-02-22 2001-11-19 Cholesteric liquid crystal optical body and manufacturing method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/790,832 2001-02-22
US09/790,832 US6573963B2 (en) 2001-02-22 2001-02-22 Cholesteric liquid crystal optical bodies and methods of manufacture

Publications (2)

Publication Number Publication Date
WO2002069001A1 WO2002069001A1 (en) 2002-09-06
WO2002069001A8 true WO2002069001A8 (en) 2003-10-30

Family

ID=25151858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/043988 WO2002069001A1 (en) 2001-02-22 2001-11-19 Cholesteric liquid crystal optical bodies and methods of manufacture

Country Status (6)

Country Link
US (1) US6573963B2 (en)
EP (1) EP1362248A1 (en)
JP (3) JP2004524563A (en)
KR (4) KR100995238B1 (en)
CN (1) CN1253734C (en)
WO (1) WO2002069001A1 (en)

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Also Published As

Publication number Publication date
CN1253734C (en) 2006-04-26
KR100995238B1 (en) 2010-11-17
US20020113937A1 (en) 2002-08-22
KR20100091236A (en) 2010-08-18
WO2002069001A1 (en) 2002-09-06
JP2008310339A (en) 2008-12-25
KR20030085535A (en) 2003-11-05
EP1362248A1 (en) 2003-11-19
KR100854554B1 (en) 2008-08-26
JP2010015170A (en) 2010-01-21
US6573963B2 (en) 2003-06-03
KR20080030097A (en) 2008-04-03
JP2004524563A (en) 2004-08-12
KR20090064475A (en) 2009-06-18
CN1493006A (en) 2004-04-28

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