Dic Corporation

Yoshitaka Saitou

Yutaka Kadomoto

Hiroshi Hasebe

Masanao Hayashi

Isa Nishiyama

Masahiro Horiguchi

Masanao Takashima

Akihiro Koiso

Fumiaki Kodera

Keisuke Fujisawa

Kazuki Obi

Hiroyuki Itou

Zhimin Li

Yan Teng

Yuuichirou Tani

There is provided a polymerizable composition, by which discoloration or alignment defects are less likely to occur when a filmy polymer, which is obtained by adding a polymerizable compound to the polymerizable composition and polymerizing this composition, is irradiated with ultraviolet light. There are also provided a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The present invention provides a polymerizable low-wavelength dispersive or polymerizable reverse-wavelength dispersive compound having a partial structure represented by Formula (Z-0). Further, the present invention provides a composition containing the compound; a polymer obtained by polymerizing the composition; and an optically anisotropic body obtained by using the polymer. 

Polymerizable compound and optically anisotropic body

An object of the present invention is to provide a photoalignment layer with a more reliable absorption anisotropy parameter as a photoalignment layer that allows for reduced AC image-sticking. Specifically, provided is a photoalignment layer, obtained by exposure to polarized UV radiation, that has a maximum &#x394;A (=A1&#x2212;A2, where A1 is the absorbance in a direction parallel to a vibration direction of the polarized UV radiation, and A2 is the absorbance in a direction parallel to the vibration direction of the polarized UV radiation) of 0.35 or more per micrometer of layer thickness in a range of 230 to 380 nm.

Liquid crystal alignment layer

Growing community of inventors

Kita-adachi-gun, Japan

Yoshitaka Saitou