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Title:
LIQUID CRYSTAL COMPOSITION, OPTICAL ANISOTROPIC FILM, NEAR INFRARED RAY-ABSORBING DYE
Document Type and Number:
WIPO Patent Application WO/2024/024700
Kind Code:
A1
Abstract:
The present invention relates to a liquid crystal composition comprising a liquid crystal compound and a near infrared ray absorbing dye having a mesogenic group, in which the molar extinction coefficient of the near infrared ray absorbing dye in dichloromethane at a maximum absorption wavelength is 200000 L/(mol·cm) or more, and the near infrared ray absorbing dye satisfies formula (1) shown below wherein A1 represents an absorbance of a molecule in the longer axis direction and A2 represents an absorbance of the molecule in the shorter axis direction both at a wavelength of 650 to 1100 nm when measured under a specific measurement condition (A).　A1 < A2 (1)

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Inventors:
SAIBE YUKI (JP)
OKADA SATOSHI (JP)
TAKADA NAOMI (JP)
Application Number:
PCT/JP2023/026898
Publication Date:
February 01, 2024
Filing Date:
July 21, 2023
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
G02B5/30; C09B57/00; C09K19/38; C09K19/54
Domestic Patent References:
WO2021059946A12021-04-01
WO2019044505A12019-03-07
WO2018043185A12018-03-08
WO2019230570A12019-12-05
Foreign References:
JP2018087939A2018-06-07
US6417402B12002-07-09
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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