US 12,085,742 B2
Anisotropic light absorption film and laminate
Yumi Katou, Kanagawa (JP); Shinichi Morishima, Kanagawa (JP); Wataru Hoshino, Kanagawa (JP); Jun Takeda, Kanagawa (JP); Kengo Saito, Kanagawa (JP); and Yuzo Fujiki, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Sep. 25, 2019, as Appl. No. 16/582,372.
Application 16/582,372 is a continuation of application No. PCT/JP2018/014906, filed on Apr. 9, 2018.
Claims priority of application No. 2017-076930 (JP), filed on Apr. 7, 2017; and application No. 2018-074480 (JP), filed on Apr. 9, 2018.
Prior Publication US 2020/0018879 A1, Jan. 16, 2020
Int. Cl. G02B 5/22 (2006.01); C09B 31/043 (2006.01); C09B 31/153 (2006.01); C09B 31/20 (2006.01); C09B 67/22 (2006.01); C09K 19/38 (2006.01); C09K 19/60 (2006.01); G02B 5/30 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01)
CPC G02B 5/3016 (2013.01) [C09B 31/043 (2013.01); C09B 31/153 (2013.01); C09B 31/20 (2013.01); C09B 67/0046 (2013.01); C09K 19/3838 (2013.01); C09K 19/601 (2013.01); G02B 5/22 (2013.01); G02B 5/3083 (2013.01); G02F 1/133528 (2013.01); G02F 1/133723 (2013.01); C09K 2323/03 (2020.08); C09K 2323/031 (2020.08); G02F 2202/04 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An anisotropic light absorption film which is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a polymer liquid crystal compound including a repeating unit represented by Formula (1),
wherein the polymer liquid crystal compound contains a repeating unit A in which T1 in Formula (1) is an alkoxy group and a repeating unit B in which T1 in Formula (1) is a group other than an alkoxy group,
wherein the ratio A/B of the content of the repeating unit A to the content of the repeating unit B is 50/50 to 95/5,
wherein the first dichroic azo dye has a solution absorption peak wavelength of 400 nm or greater and less than 550 nm,
wherein the second dichroic azo dye has a solution absorption peak wavelength of 550 nm or greater and 750 nm or less,
wherein the second dichroic azo dye is represented by Formula (II),
wherein the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein,
wherein the polymer liquid crystal compound including the repeating unit represented by Formula (1) is horizontally aligned, and
wherein a half-width of a peak derived from the arrangement structure of the second dichroic azo dye in ϕ scanning is less than 10.0° in X-ray diffraction measurement in an in-plane direction of the anisotropic light absorption film,

OG Complex Work Unit Chemistry
in Formula (1), P1 represents a main chain of the repeating unit, L1 represents a single bond or a divalent linking group, SP1 represents a spacer group, M1 represents a mesogenic group, and T1 represents a terminal group,

OG Complex Work Unit Chemistry
in Formula (II), R31 to R35 each independently represent a hydrogen atom or a substituent; R36 and R37 each independently represent a hydrogen atom or an alkyl group which may have a substituent; Q31 represents an aromatic hydrocarbon group, an aromatic heterocyclic group, or a cyclohexane ring group which may have a group represented by Q-L-* as a substituent, wherein Q represents a hydrogen atom, an alkyl group, or R—CO—O—* wherein R represents an alkyl group, L represents a single bond, a divalent aliphatic hydrocarbon group, a divalent aromatic hydrocarbon group, an alkyleneoxy group, —O—, —S—, —SO2—, —SO3—, —N(R)—, —CO—, —NH—, —COO—, —CONR—, —Si(R)(R′)—, or combinations thereof, and * represents a bonding position, wherein R and R′ each represent an alkyl group; L31 represents —N═N—; and A31 represents an oxygen atom or a sulfur atom, and R36, and R37 may have a radically polymerizable group.