# US 11,111,437 B2 · Liquid crystal composition, optically anisotropic layer, optical laminate, and image display device

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- Number: US 11,111,437 B2
- Document ID: US11111437B2
- Status: Granted
- Kind: B2
- Application number: 16/509,695
- Filed: 2019-07-12
- Published: 2019-11-07
- Granted: 2021-09-07
- Earliest claimed: 2017-03-22
- Assignees: FUJIFILM Corporation
- Applicants: FUJIFILM Corporation
- Inventors: Akio Tamura
- Web page: https://patentgrep.com/patent/US11111437B2

## CPC

- C09K 19/3861: {containing condensed ring systems}
- C09K 19/54: Additives having no specific mesophase {characterised by their chemical composition}
- C09K 19/2014: {containing additionally a linking group other than -COO- or -OCO-, e.g. -CH2-CH2-, -CH=CH-, -C=C-; containing at least one additional carbon atom in the chain containing -COO- or -OCO- groups, e.g. -(CH2)m-COO-(CH2)n-}
- C09K 19/3086: {in which at least two rings are linked by a chain containing nitrogen atoms}
- C09K 19/3477: {the heterocyclic ring being a five-membered aromatic ring containing at least one nitrogen atom}
- C09K 19/3491: {having sulfur as hetero atom}
- C09K 19/3852: {Poly(meth)acrylate derivatives}
- C09K 19/542: {Macromolecular compounds}
- C09K 19/56: Aligning agents
- G02F 1/13363: Birefringent elements, e.g. for optical compensation
- C09K 2019/0448: {the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate}
- C09K 2019/2035: {Ph-COO-Ph}
- C09K 2019/548: {stabilizing the alignment; Polymer stabilized alignment}
- G02F 1/133633: {using mesogenic materials}
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- 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

A liquid crystal composition contains a liquid crystal compound; a photo-alignment compound; and a polymer obtained by polymerizing a monomer having two or more radically polymerizable double bonds and one or more hydroxyl groups.

## Claims

### Claim 1

A liquid crystal composition comprising:
a liquid crystal compound;
a photo-alignment compound; and
a polymer obtained by polymerizing a monomer having two or more radically polymerizable double bonds and one or more hydroxyl groups,
wherein the photo-alignment compound is a photo-sensitive compound having a photo-reactive group which is subjected to at least one of dimerization or isomerization by the action of light, and
the photo-reactive group has a skeleton of at least one type of derivative or compound selected from the group consisting of cinnamic acid derivations, courmarin derivatives, chalcone derivations, maleimide derivatives, azobenzene compounds, stilbene compounds and spiropyran compounds.

### Claim 2 (depends on 1)

The liquid crystal composition according to claim 1,
wherein the polymer is obtained by polymerizing a monomer represented by Formula X,
ZX1-LX1-LX2-LX3-LX4-ZX2)n Formula X
in Formula X, ZX1 and ZX2 each independently represent a group having a radically polymerizable double bond, LX1 and LX4 each independently represent a single bond or an alkylene group having a hydroxyl group, LX2 and LX3 each independently represent a single bond, or a divalent linking group formed of at least one selected from the group consisting of —O—, —(C═O)O—, —O(C═O)—, a divalent chain group, an alkylene group having a hydroxyl group, and a divalent aliphatic cyclic group, at least one of LX1 to LX4 is an alkylene group having a hydroxyl group, M represents a single bond or a di- to tetra-valent linking group, and n represents an integer of 1 to 3.

### Claim 3 (depends on 1)

The liquid crystal composition according to claim 1,
wherein the polymer is obtained by polymerizing a monomer represented by Formula X1,
in Formula X1, R1 and R2 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, L11 and L12 each independently represent a single bond, or a divalent linking group formed of at least one selected from the group consisting of —O—, —(C═O)O—, —O(C═O)—, a divalent chain group, an alkylene group having a hydroxyl group, and a divalent aliphatic cyclic group, M1 represents a single bond or a di- to tetra-valent linking group, and n1 represents an integer of 1 to 3.

### Claim 4 (depends on 1)

The liquid crystal composition according to claim 1,
wherein the polymer has a partial structure obtained by polymerizing a compound having a fluorine atom.

### Claim 5 (depends on 4)

The liquid crystal composition according to claim 4,
wherein the compound having a fluorine atom is represented by Formula a,
in Formula a, Ra1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and Ra2 represents an alkyl group having 1 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms in which at least one carbon atom has a fluorine atom as a substituent.

### Claim 6 (depends on 1)

An optically anisotropic layer which is formed using the liquid crystal composition according to claim 1.

### Claim 7 (depends on 6)

An optical laminate comprising:
a support; and
a first optically anisotropic layer provided on the support,
wherein the first optically anisotropic layer is the optically anisotropic layer according to claim 6.

### Claim 8 (depends on 6)

The optical laminate according to claim 6, further comprising:
a second optically anisotropic layer provided on the first optically anisotropic layer.

### Claim 9 (depends on 8)

The optical laminate according to claim 8,
wherein the second optically anisotropic layer is formed using a liquid crystal composition containing a liquid crystal compound.

### Claim 10 (depends on 8)

The optical laminate according to claim 8,
wherein the first optically anisotropic layer and the second optically anisotropic layer are in contact with each other.

### Claim 11 (depends on 6)

An image display device comprising:
the optically anisotropic layer according to claim 6.

### Claim 12 (depends on 7)

An image display device comprising:
the optical laminate according to claim 7.