POLYMER COMPOSITION, LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DISPLAY ELEMENT, AND METHOD FOR PRODUCING SUBSTRATE HAVING LIQUID CRYSTAL ALIGNMENT FILM

WIPO Patent Application WO/2020/196698

A1

The present invention provides: a liquid crystal alignment film to which alignment control ability is imparted with high efficiency and which has excellent tilt angle characteristics; a polymer composition that provides the liquid crystal alignment film; and a liquid crystal display element. The present invention provides a method for producing a substrate having a liquid crystal alignment film to which alignment control ability is imparted, the method comprising: [I] a step for forming a coating film by applying a polymer composition containing an organic solvent (B) and a polymer (A) having, in separate side chains, a moiety that induces in-plane alignment in a direction (S-wave direction) perpendicular to a parallel direction (P-wave direction) of polarized ultraviolet light and a moiety that induces out-of-plane alignment, to a substrate having an electrode for liquid crystal driving; [II] a step for irradiating the coating film obtained in [I] with polarized ultraviolet light having S waves as a main component from a diagonal direction; and [III] a step for heating the coating film obtained in [II].

NAGAI KENTARO (JP)
MORIUCHI MASATO (JP)
FUJIEDA TSUKASA (JP)
ASHIZAWA RYOICHI (JP)

PCT/JP2020/013519

October 01, 2020

March 26, 2020

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NISSAN CHEMICAL CORP (JP)

G02F1/1337; C08F220/30

WO2011125876A1	2011-10-13
WO2013002260A1	2013-01-03
WO2017126459A1	2017-07-27

YOSHIZAWA, Takao et al. (JP)

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