US 10,344,213 B2Granted

Reactive mesogen and liquid crystal composition including the same

AssigneeSamsung Display Co., Ltd.

InventorHo Lim

Life of this patent

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Abstract

Provided are a reactive mesogen that may improve display quality of a liquid crystal display, and a liquid crystal composition including the same. The reactive mesogen is represented by the following Formula: where A1, A2, and A3 are each independently a substituted or unsubstituted divalent hydrocarbon ring, or a substituted or unsubstituted divalent heterocycle, L1 and L2 are each independently a direct linkage, —O—, —S—, —CO—, —COO—, —OCOO—, —O(CH2)k1—, —S(CH2)k1—, —O(CF2)k1—, —S(CF2)k1—, —(CH2)k1—, —CF2CH2—, —(CF2)k1—, —CH═CH—, —CF═CF—, —C≡C—, —CH═CH—COO—, or —(CH2)k1—COO—(CH2)k2—O—, Z1 and Z2 are each independently a direct linkage, —O—, —S—, —CO—, —COO—, —OCOO—, —O(CH2)m1—, —S(CH2)m1—, —O(CF2)m1—, —S(CF2)m1—, —(CH2)m1—, —CF2CH2—, —(CF2)m1—, —CH═CH—, —CF═CF—, —C≡C—, —CH═CH—COO—, —(CH2)m1—COO—, —(CH2)m1—COO—(CH2)m2—O—, —CH—(Sp—Pa)—, —CH2CH—(Sp—Pa)—, or —(CH—(Sp—Pa)—CH—(Sp—Pa))—, Pa is a polymerizable group, B is an unsubstituted heterocycle, a substituted or unsubstituted crown ether group, or wherein T1 and T2 are each independently —OH, —CH3, —CF3, —CHF2, —CH2F, —CH2Br, —CHBr2, —CHCl2, or —CH2Cl.

Claims12

Dependent claims

A reactive mesogen represented by the following Formula 1:

where A1, A2, and A3 are each independently a substituted or unsubstituted divalent hydrocarbon ring, or a substituted or unsubstituted divalent heterocycle,
a1, b1, and b2 are each independently an integer of 0 to 6,
a2 and a3 are each independently 0 or 1,
L1 and L2 are each independently a direct linkage, —O—, —S—, —CO—, —COO—, —OCOO—, —O(CH2)k1—, —S(CH2)k1—, —O(CF2)k1—, —S(CF2)k1—, —(CH2)k1—, —CF2CH2—, —(CF2)k1—, —CH═CH—, —CF═CF—, —C≡C—, —CH═CH—COO—, or —(CH2)k1—COO—(CH2)k2—O—,
k1 and k2 are each independently an integer of 0 to 4,
Z1 and Z2 are each independently a direct linkage, —O—, —S—, —CO—, —COO—, —OCOO—, —O(CH2)m1—, —S(CH2)m1—, —O(CF2)m1—, —S(CF2)m1—, —(CH2)m1—, —CF2CH2—, —(CF2)m1—, —CH═CH—, —CF═CF—, —C≡C—, —CH═CH—COO—, —(CH2)m1—COO—, —(CH2)m1—COO—(CH2)m2—O—, —CH—(Sp—Pa)—, —CH2CH—(Sp—Pa)—, or —(CH—(Sp—Pa)—CH—(Sp—Pa))—,
m1 and m2 are each independently an integer of 0 to 4,
Sp is a direct linkage, or a spacer group,
Pa is a polymerizable group,
B is an unsubstituted heterocycle, a substituted or unsubstituted crown ether group, or
n1 and n2 are each independently an integer of 1 to 12, T1 and T2 are each independently —OH, —CH3, —CF3, —CHF2, —CH2F, —CH2Br, —CHBr2, —CHCl2, or —CH2Cl, and
at least one of T1 and T2 is —OH.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/628,314Filed 20 Jun 2017
Priority: KR 10-2016-009360522 Jul 2016
Published: US 2018/0023000 A125 Jan 2018
Granted: 9 Jul 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

C09K 19/38
Characterised by the chemical structure of the liquid crystal components , e.g. by a specific unit: polymers
C09K 19/28
Containing at least two benzene rings: linked by a chain containing carbon and sulfur atoms as chain links, e.g. thioesters
C09K 19/3066
Cyclohexane rings: in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers
C09K 19/34
Non-steroidal liquid crystal compounds: containing at least one heterocyclic ring