Patent ID: 8574688
Filing Date: 2013-11-05
Classification: C09K

Abstract:
1. A liquid crystal composition comprising: a liquid crystal material capable of forming a blue phase, a first polymerizable monomer for crosslinking, and a second polymerizable monomer, wherein at least one of said first and said second polymerizable monomers has a liquid crystal side chain, with the proviso that when the first polymerizable monomer is 2-methyl-1,4-phenylene bis{4-[3-(acryloyloxy) propyloxy]benzoate}, said first polymerizable monomer for crosslinking is present in said composition at a concentration of 2.8 mol % to 10 mol %, wherein said second polymerizable monomer is selected from the group consisting of a mixture of acrylic acid 4-(4-pentyl-phenylethynyl)-phenyl ester and acrylic acid 4(4propyl-cyclohexylethynyl)-phenyl ester, 3,5-difluoro-benzoic acid 4-(5-acryloyloxy-pentyloxy)-phenyl ester, 2-methyl-acrylic acid 5-(4′-cyano-biphenyl-4-yloxy)-pentyl ester, wherein X is attached at any position of the aromatic system and is one of the following: —H, —Cl, —F, —Br, —I, —OH, —CF wherein Z is (CH wherein W is —C≡C—, ′—RC═CR′—, O, S, NR, —COO, —OCO—, R′ being C wherein Y is one of the following: phenyl, biphenyl, triphenyl, or cyclohexyl, each of which is optionally and independently substituted by one or more of the following substituents at any position: —H, —Cl, —F, —Br, —I, —OH, —OCH wherein V is —(CH wherein R is H or C