OPTICAL FILM, COMPOSITION FOR COLORED LAYER FORMATION, DIPYRROMETHENE COBALT COMPLEX, AND DISPLAY DEVICE

WIPO Patent Application WO/2023/233864

A1

An optical film according to the present invention comprises a transparent base material and a colored layer that is superposed on at least one surface side of the transparent base material; the colored layer has a maximum absorption wavelength within the range of 480 nm to 500 nm; the colored layer contains a dye (A); the dye (A) contains a colorant which contains a dipyrromethene cobalt complex that has a specific structure; and the measured value of the maximum absorption wavelength of the dipyrromethene cobalt complex in an acetone solution at a concentration of 5.0 × 10-6 M and the calculated value thereof as calculated using quantum chemical calculation program Gaussian 16 satisfy a specific relationship.

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TAGAMI HANAE (JP)
FURUKAWA SHIGEKI (JP)
ISHIKAWA SHINYA (JP)
ISHIMARU YOSHIKO (JP)

PCT/JP2023/016111

December 07, 2023

April 24, 2023

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TOPPAN INC (JP)

B32B7/023; G02B5/20; B32B27/18; C07F15/06; C08L33/04; C08L101/00; C09B23/04; C09B67/20; G02B5/22

WO2021044802A1	2021-03-11
WO2021177748A1	2021-09-10

JP2021038177A	2021-03-11
JPH10226172A	1998-08-25

FERGUSSON, J. E. ET AL.: "Dipyrromethene Complexes of Transition Metals. Part I. Tetrahedral Complexes of Cobalt(II), Nickel(II), Copper(II), and Zinc(II", JOURNAL OF THE CHEMICAL SOCIETY, 1965, pages 5222 - 5225, XP093078046, DOI: 10.1039/JR9650005222

MATSUNUMA Yasushi et al. (JP)

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