Title:
METHOD FOR PRODUCING SUBSTRATE HAVING LIQUID CRYSTAL ALIGNMENT FILM FOR IN-PLANE SWITCHING LIQUID CRYSTAL DISPLAY ELEMENTS
Document Type and Number:
WIPO Patent Application WO/2014/196589
Kind Code:
A1
Abstract:
The present invention provides a highly reliable in-plane switching liquid crystal display element which is provided with alignment control ability at high efficiency and has excellent screen burn-in characteristics. The present invention provides a method for producing a substrate having a liquid crystal alignment film, in which a liquid crystal alignment film for in-plane switching liquid crystal display elements provided with alignment control ability is obtained by performing: [I] a step for forming a coating film by applying a polymer composition to a substrate having a conductive film for in-plane switching, said polymer composition containing (A) a photosensitive side-chain polymer which exhibits liquid crystallinity within a predetermined temperature range, and which has one or more repeating units that are selected from among cyclic amine structures wherein two carbon atoms adjacent to a nitrogen atom respectively have two substituents represented by formula (S) (wherein R11 represents a single bond or the like, X represents a single bond and R12 represents a hydrocarbon group), and (B) an organic solvent; [II] a step for irradiating the coating film obtained in step [I] with polarized ultraviolet light; and [III] a step for heating the coating film obtained in step [II].
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Inventors:
NAGI TATSUYA (JP)
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
Application Number:
PCT/JP2014/064925
Publication Date:
December 11, 2014
Filing Date:
June 05, 2014
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
International Classes:
C08L33/04; G02F1/1337
Domestic Patent References:
| WO2013094734A1 | 2013-06-27 | |||
| WO2014054785A2 | 2014-04-10 |
Foreign References:
| JP2012128372A | 2012-07-05 |
Other References:
DAVID STEWART ET AL.: "Synthesis and characterization of spin-labelled and spin- probed side-chain liquid crystal polymers", POLYMER, vol. 37, no. 15, 1996, pages 3419 - 3425, XP004069266, DOI: doi:10.1016/0032-3861(96)88490-4
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (JP)
Takao Yoshizawa (JP)
Takao Yoshizawa (JP)
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