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Title:
POLYMERIZABLE LIQUID CRYSTAL COMPOSITION AND PHASE DIFFERENCE PLATE
Document Type and Number:
WIPO Patent Application WO/2018/225474
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a polymerizable liquid crystal composition which rarely undergoes the change in the optical performance thereof even when irradiated with high-intensity ultraviolet ray and can be highly polymerized; and a phase difference plate which includes a liquid crystal cured layer made from a polymer of the polymerizable liquid crystal composition, has high optical performance, and rarely undergoes the change in the performance thereof even under severe conditions. A polymerizable liquid crystal composition containing at least two polymerizable liquid crystal compounds, wherein at least one of the polymerizable liquid crystal compounds is a polymerizable liquid crystal compound (A) as mentioned below and at least one of the polymerizable liquid crystal compounds is a polymerizable liquid crystal compound (B) as mentioned below. The polymerizable liquid crystal compound (A): a polymerizable liquid crystal compound such that a polymer of the polymerizable liquid crystal compound in which the polymerizable liquid crystal compound is oriented exhibits a reverse wavelength dispersion property and the phase difference value [R(A,3000,450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 3000 mJ/cm2 varies in a positive sense relative to the phase difference value [R(A,500,450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 500 mJ/cm2; the polymerizable liquid crystal compound (B): a polymerizable liquid crystal compound such that a polymer of the polymerizable liquid crystal compound in which the polymerizable liquid crystal compound is oriented exhibits a reverse wavelength dispersion property and the phase difference value [R(B,3000,450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 3000 mJ/cm2 varies in a negative sense relative to the phase difference value [R(B,500,450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 500 mJ/cm2.

Inventors:
INUI, Naoko (LIMITED 1-98, Kasugadenaka 3-chome, Konohana-ku, Osaka-sh, Osaka 58, 〒5548558, JP)
HATANAKA, Nobuyuki (LIMITED 1-98, Kasugadenaka 3-chome, Konohana-ku, Osaka-sh, Osaka 58, 〒5548558, JP)
KASAI, Tatsuaki (LIMITED 1-98, Kasugadenaka 3-chome, Konohana-ku, Osaka-sh, Osaka 58, 〒5548558, JP)
DEZAKI, Hikari (LIMITED 1-1, Oe-cho, Niihama-sh, Ehime 15, 〒7920015, JP)
Application Number:
JP2018/019087
Publication Date:
December 13, 2018
Filing Date:
May 17, 2018
Export Citation:
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Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED (27-1, Shinkawa 2-chome Chuo-k, Tokyo 60, 〒1048260, JP)
International Classes:
G02B5/30; C09K19/38; G09F9/00; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
WO2017038266A12017-03-09
Foreign References:
JP2011207765A2011-10-20
JP6146526B12017-06-14
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (LIMITED 5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 50, 〒5418550, JP)
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