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WO2008123281A1 - Process for producing laminate comprising resin layer having cholesteric regularity, circularly polarized light separating sheet, and liquid crystal display device - Google Patents

Process for producing laminate comprising resin layer having cholesteric regularity, circularly polarized light separating sheet, and liquid crystal display device Download PDF

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Publication number
WO2008123281A1
WO2008123281A1 PCT/JP2008/055668 JP2008055668W WO2008123281A1 WO 2008123281 A1 WO2008123281 A1 WO 2008123281A1 JP 2008055668 W JP2008055668 W JP 2008055668W WO 2008123281 A1 WO2008123281 A1 WO 2008123281A1
Authority
WO
WIPO (PCT)
Prior art keywords
resin layer
liquid crystal
less
display device
crystal display
Prior art date
Application number
PCT/JP2008/055668
Other languages
French (fr)
Japanese (ja)
Inventor
Nobuyuki Goto
Original Assignee
Zeon Corporation
Future Vision Inc.
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 Zeon Corporation, Future Vision Inc. filed Critical Zeon Corporation
Priority to JP2009509129A priority Critical patent/JPWO2008123281A1/en
Publication of WO2008123281A1 publication Critical patent/WO2008123281A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material

Landscapes

  • Laminated Bodies (AREA)
  • Polarising Elements (AREA)

Abstract

This invention provides a process for producing a laminate comprising a cholesteric resin layer, which is less likely to cause a shift of a broader banded reflection spectrum due to a deterioration with the elapse of time, and a circularly polarized light separating sheet comprising the resin layer, and a liquid crystal display device. In the production process, the resin layer having cholesteric regularity is formed by a process comprising the step of coating a photopolymerizable composition containing a photopolymerization initiator having an average molar extinction coefficient of not less than 2000 M-1cm-1 at a wavelength of 350 to 400 nm and a photopolymerizable liquid crystal compound having an average molar extinction coefficient of not more than 1500 M-1cm-1 at a wavelength of 350 to 400 nm onto a base material film to form a coating film, and the step of curing the coating film to form a layer of a resin having cholesteric regularity. In this case, the curing of the coating film is carried out in an atmosphere having an oxygen concentration of not more than 1% under conditions of a wavelength range of 350 to 400 nm, an illuminance of not less than 500 mWcm-2, and an integrated quantity of light of not less than 200 mJcm-2.
PCT/JP2008/055668 2007-03-27 2008-03-26 Process for producing laminate comprising resin layer having cholesteric regularity, circularly polarized light separating sheet, and liquid crystal display device WO2008123281A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009509129A JPWO2008123281A1 (en) 2007-03-27 2008-03-26 Method for producing laminated body including resin layer having cholesteric regularity, circularly polarized light separating sheet, and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007082804 2007-03-27
JP2007-082804 2007-03-27

Publications (1)

Publication Number Publication Date
WO2008123281A1 true WO2008123281A1 (en) 2008-10-16

Family

ID=39830769

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055668 WO2008123281A1 (en) 2007-03-27 2008-03-26 Process for producing laminate comprising resin layer having cholesteric regularity, circularly polarized light separating sheet, and liquid crystal display device

Country Status (2)

Country Link
JP (1) JPWO2008123281A1 (en)
WO (1) WO2008123281A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011002556A (en) * 2009-06-17 2011-01-06 Dic Corp Method of manufacturing biaxial retardation film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004359639A (en) * 2003-06-06 2004-12-24 Asahi Denka Kogyo Kk Oxime ester compound and photopolymerization initiator containing the same
JP2006017930A (en) * 2004-06-30 2006-01-19 Dainippon Printing Co Ltd Projection screen and projection system provided with the same
JP2007065314A (en) * 2005-08-31 2007-03-15 Nippon Zeon Co Ltd Circularly polarized light separating sheet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004359639A (en) * 2003-06-06 2004-12-24 Asahi Denka Kogyo Kk Oxime ester compound and photopolymerization initiator containing the same
JP2006017930A (en) * 2004-06-30 2006-01-19 Dainippon Printing Co Ltd Projection screen and projection system provided with the same
JP2007065314A (en) * 2005-08-31 2007-03-15 Nippon Zeon Co Ltd Circularly polarized light separating sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011002556A (en) * 2009-06-17 2011-01-06 Dic Corp Method of manufacturing biaxial retardation film

Also Published As

Publication number Publication date
JPWO2008123281A1 (en) 2010-07-15

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