# US 2023/0265346 A1 · Liquid crystal composition, optically anisotropic layer, laminate, and image display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0265346 A1 - Document ID: US20230265346A1 - Status: Published application - Kind: A1 - Application number: 18/151,893 - Filed: 2023-01-09 - Published: 2023-08-24 - Earliest claimed: 2020-07-14 - Assignees: FUJIFILM Corporation - Applicants: FUJIFILM Corporation - Inventors: Wataru HOSHINO; Hiroshi MATSUYAMA; Keigo SHIGA - Web page: https://patentgrep.com/patent/US20230265346A1 ## CPC - C09K 19/3852: {Poly(meth)acrylate derivatives} - C09K 19/52: characterised by components which are not liquid crystals, e.g. additives {with special physical aspect: solvents, solid particles} - C09K 19/60: Pleochroic dyes - C09K 19/601: {Azoic} - G02B 5/30: Polarising elements (light-modulating devices with active elements G02F1/00) - G02F 1/1335: Structural association of cells with optical devices, e.g. polarisers or reflectors - G02F 1/13363: Birefringent elements, e.g. for optical compensation - G02F 1/1337: Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers - C09K 2019/0448: {the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate} - C09K 2019/528: {Surfactants} - C09K 2019/546: {creating a polymeric network} - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract An object of the present invention is to provide a liquid crystal composition capable of forming an optically anisotropic layer with suppressed alignment defects and an excellent alignment degree, an optically anisotropic layer, a laminate, and an image display device. The liquid crystal composition of the present invention includes a rod-like liquid crystal compound, and an interface improver having a repeating unit B1 represented by Formula (N-1) and a repeating unit B2 having a fluorine atom. In Formula (N-1), RB11 and RB12 each independently represent a hydrogen atom or a substituent, and RB13 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen atom, or a cyano group. Here, in a case where RB11 and RB12 represent a substituent, RB11 and RB12 may be linked to each other to form a ring. ## Claims ### Claim 1 A liquid crystal composition comprising: a rod-like liquid crystal compound; and an interface improver having a repeating unit B1 represented by Formula (N-1) and a repeating unit B2 having a fluorine atom, in Formula (N-1), RB11 and RB12 each independently represent a hydrogen atom or a substituent, and RB13 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen atom, or a cyano group, where, in a case where RB11 and RB12 represent a substituent, RB11 and RB12 may be linked to each other to form a ring. ### Claim 2 (depends on 1) The liquid crystal composition according to claim 1, wherein in Formula (N-1), a total molecular weight of RB11 and RB12 is 100 or less. ### Claim 3 (depends on 1) The liquid crystal composition according to claim 1, wherein in Formula (N-1), RB11 and RB12 each independently represent a hydrogen atom or an organic group having 1 to 15 carbon atoms. ### Claim 4 (depends on 1) The liquid crystal composition according to claim 1, wherein a content of the repeating unit B1 is in a range of 3% to 75% by mass with respect to all repeating units of the interface improver. ### Claim 5 (depends on 1) The liquid crystal composition according to claim 1, wherein the rod-like liquid crystal compound includes a polymer liquid crystal compound. ### Claim 6 (depends on 5) The liquid crystal composition according to claim 5, wherein the rod-like liquid crystal compound further includes a low-molecular-weight liquid crystal compound. ### Claim 7 (depends on 1) The liquid crystal composition according to claim 1, wherein the repeating unit B2 includes at least one of a repeating unit represented by Formula (F-1) or a repeating unit represented by Formula (F-2), in Formula (F-1), LF1 represents a single bond or a divalent linking group, R1 represents a hydrogen atom, a fluorine atom, a chlorine atom, or an alkyl group having 1 to 20 carbon atoms, RF1 represents a group containing at least one of groups (a) to (e), (a) a group represented by Formula (1), (2), or (3), (b) a perfluoropolyether group, (c) an alkyl group having 1 to 20 carbon atoms, which has a hydrogen bond between a proton-donating functional group and a proton-accepting functional group and in which at least one carbon atom has a fluorine atom as a substituent, (d) a group represented by Formula (1-d), and (e) a group represented by Formula (1-e), in Formula (1-d), X represents a hydrogen atom or a substituent, T10 represents a terminal group, 1 represents an integer of 1 to 20, m represents an integer of 0 to 2, n represents an integer of 1 to 2, and m + n is 2, in Formula (1-e), R2 represents a hydrogen atom, a fluorine atom, a chlorine atom, or an alkyl group having 1 to 20 carbon atoms, LF2 represents a single bond or a divalent linking group, RF11 and RF12 each independently represent a perfluoropolyether group, and * represents a bonding position with respect to LF1 in Formula (F-1), in Formula (F-2), R2 represents a hydrogen atom, a fluorine atom, a chlorine atom, or an alkyl group having 1 to 4 carbon atoms, and LF2 represents the same group as LF1 in Formula (F-1), SP21 and SP22 each independently represent a spacer group, DF2 represents an (m2 + 1)-valent group, T2 represents a terminal group, RF2 represents a group having a fluorine atom, n2 represents an integer of 2 or greater, m2 represents an integer of 2 or greater, and m2 is greater than or equal to n2. ### Claim 8 (depends on 1) The liquid crystal composition according to claim 1, further comprising: a dichroic substance. ### Claim 9 (depends on 1) An optically anisotropic layer which is formed of the liquid crystal composition according to claim 1. ### Claim 10 (depends on 9) A laminate comprising: a base material; and the optically anisotropic layer according to claim 9 which is provided on the base material, wherein the rod-like liquid crystal compound contained in the optically anisotropic layer is fixed in a state of being aligned in a horizontal direction. ### Claim 11 (depends on 10) The laminate according to claim 10, further comprising: a λ/4 plate provided on the optically anisotropic layer. ### Claim 12 (depends on 9) An image display device comprising: the optically anisotropic layer according to claim 9. ### Claim 13 (depends on 10) An image display device comprising: the laminate according to claim 10. ### Claim 14 (depends on 2) The liquid crystal composition according to claim 2, wherein in Formula (N-1), RB11 and RB12 each independently represent a hydrogen atom or an organic group having 1 to 15 carbon atoms. ### Claim 15 (depends on 2) The liquid crystal composition according to claim 2, wherein a content of the repeating unit B1 is in a range of 3% to 75% by mass with respect to all repeating units of the interface improver. ### Claim 16 (depends on 2) The liquid crystal composition according to claim 2, wherein the rod-like liquid crystal compound includes a polymer liquid crystal compound. ### Claim 17 (depends on 16) The liquid crystal composition according to claim 16, wherein the rod-like liquid crystal compound further includes a low-molecular-weight liquid crystal compound. ### Claim 18 (depends on 2) The liquid crystal composition according to claim 2, wherein the repeating unit B2 includes at least one of a repeating unit represented by Formula (F-1) or a repeating unit represented by Formula (F-2), in Formula (F-1), LF1 represents a single bond or a divalent linking group, R1 represents a hydrogen atom, a fluorine atom, a chlorine atom, or an alkyl group having 1 to 20 carbon atoms, RF1 represents a group containing at least one of groups (a) to (e), (a) a group represented by Formula (1), (2), or (3), (b) a perfluoropolyether group, (c) an alkyl group having 1 to 20 carbon atoms, which has a hydrogen bond between a proton-donating functional group and a proton-accepting functional group and in which at least one carbon atom has a fluorine atom as a substituent, (d) a group represented by Formula (1-d), and (e) a group represented by Formula (1-e), in Formula (1-d), X represents a hydrogen atom or a substituent, T10 represents a terminal group, 1 represents an integer of 1 to 20, m represents an integer of 0 to 2, n represents an integer of 1 to 2, and m + n is 2, in Formula (1-e), R2 represents a hydrogen atom, a fluorine atom, a chlorine atom, or an alkyl group having 1 to 20 carbon atoms, LF2 represents a single bond or a divalent linking group, RF11 and RF12 each independently represent a perfluoropolyether group, and * represents a bonding position with respect to LF1 in Formula (F-1), in Formula (F-2), R2 represents a hydrogen atom, a fluorine atom, a chlorine atom, or an alkyl group having 1 to 4 carbon atoms, and LF2 represents the same group as LF1 in Formula (F-1), SP21 and SP22 each independently represent a spacer group, DF2 represents an (m2 + 1)-valent group, T2 represents a terminal group, RF2 represents a group having a fluorine atom, n2 represents an integer of 2 or greater, m2 represents an integer of 2 or greater, and m2 is greater than or equal to n2. ### Claim 19 (depends on 2) The liquid crystal composition according to claim 2, further comprising: a dichroic substance. ### Claim 20 (depends on 2) An optically anisotropic layer which is formed of the liquid crystal composition according to claim 2.