Patent ID: 9678386
Date: 2017-06-13
CPC Classifications: C09K,G02F

Claim:
1. A liquid-crystal display device comprising a pair of substrates; a liquid crystal layer which is sandwiched between the substrates and which contains a liquid crystal material; and a polymer layer which is disposed on a surface of each of the substrates and which controls the alignment of liquid crystal molecules, the outermost surfaces of both the substrates comprising substantially no alignment film, the polymer layer being obtained or obtainable by polymerizing two or more radical polymerizable monomer species added to the liquid crystal layer, and at least one species of the one or more radical polymerizable monomer species being a compound represented by the following formula (1): wherein X a is 0 or 1; b is 0 or 1; c is 0 or 1; R is a C1-C20 alkyl; and each hydrogen atom may optionally be replaced by halogen, methyl, ethyl, or propyl; and at least another one species of the one or more radical polymerizable monomer species has a cyclic structure and a single monofunctional polymerizable group.