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/2014/196590
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 achieves the above-described objective by 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 (B) an organic solvent; [II] a step for irradiating the coating film obtained in step [I] with polarized ultraviolet light having an extinction ratio of 10:1 or more; and [III] a step for heating the coating film obtained in step [II].
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Inventors:
NEGI TAKAYUKI (JP)
ASHIZAWA RYOICHI (JP)
MANDAI ATSUHIKO (JP)
NAGI TATSUYA (JP)
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
ASHIZAWA RYOICHI (JP)
MANDAI ATSUHIKO (JP)
NAGI TATSUYA (JP)
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
Application Number:
PCT/JP2014/064926
Publication Date:
December 11, 2014
Filing Date:
June 05, 2014
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
International Classes:
G02F1/1337; C08F220/30
Domestic Patent References:
| WO2012014915A1 | 2012-02-02 | |||
| WO2014054785A2 | 2014-04-10 |
Other References:
KOHEI GOTO ET AL.: "Mennai Haiko LCD no Tameno Bunshi Haikosei Hikari Haikozai", DAI 62 KAI ABSTRACTS, ANNUAL MEETING OF THE SOCIETY OF POLYMER SCIENCE, vol. 62, no. 1, 14 May 2013 (2013-05-14), pages 1667(3Pc109)
NOBUHIRO KAWATSUKI ET AL.: "Molecular-Oriented Photoalignment Layer for Liquid Crystals", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 46, no. 1, 10 January 2007 (2007-01-10), pages 339 - 341
NOBUHIRO KAWATSUKI: "Photoalignment and Photoinduced Molecular Reorientation of Photosensitive Materials", CHEMISTRY LETTERS, vol. 40, no. 6, 11 May 2011 (2011-05-11), pages 548 - 554
NOBUHIRO KAWATSUKI ET AL.: "Axis-Selective Photo -Fries Rearrangement and Photoinduced Molecular Reorientation in Liquid Crystalline Polymer Films", MACROMOLECULES, vol. 44, no. 14, 21 June 2011 (2011-06-21), pages 5736 - 5742
YOSHIHIRO KAWATSUKI ET AL.: "Photoinduced Molecular Orientation in Polymeric Films Based on Photo-Fries Rearrangement", EKISHO, vol. 17, no. 3, 25 July 2013 (2013-07-25), pages 152 - 156
NOBUHIRO KAWATSUKI ET AL.: "Molecular-Oriented Photoalignment Layer for Liquid Crystals", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 46, no. 1, 10 January 2007 (2007-01-10), pages 339 - 341
NOBUHIRO KAWATSUKI: "Photoalignment and Photoinduced Molecular Reorientation of Photosensitive Materials", CHEMISTRY LETTERS, vol. 40, no. 6, 11 May 2011 (2011-05-11), pages 548 - 554
NOBUHIRO KAWATSUKI ET AL.: "Axis-Selective Photo -Fries Rearrangement and Photoinduced Molecular Reorientation in Liquid Crystalline Polymer Films", MACROMOLECULES, vol. 44, no. 14, 21 June 2011 (2011-06-21), pages 5736 - 5742
YOSHIHIRO KAWATSUKI ET AL.: "Photoinduced Molecular Orientation in Polymeric Films Based on Photo-Fries Rearrangement", EKISHO, vol. 17, no. 3, 25 July 2013 (2013-07-25), pages 152 - 156
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (JP)
Takao Yoshizawa (JP)
Takao Yoshizawa (JP)
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