Patent ID: 8741397

Claim:
A liquid crystal display element, comprising a pair of substrates including at least one transparent substrate, wherein the liquid crystal display element includes a transparent electrode interposed between the pair of substrates, an aligning agent containing at least a reactive monomer or oligomer, and a liquid crystal layer, the reactive monomer or oligomer contained in the aligning agent is polymerized to form an alignment layer, and the liquid crystal layer comprises a liquid crystal composition including at least one compound selected from the group of liquid crystal compounds having negative dielectric anisotropy, wherein the liquid crystal composition contains at least one liquid crystal compound selected from the group of liquid crystal compounds represented by formula (1) as a first component; wherein R 1 and R 2 are independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons, or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine, and at least one of R 1 and R 2 is alkenyl; ring A and ring B are independently 1,4-cyclohexylene, tetrahydropyran-2,5-diyl, 1,3-dioxane-2,5-diyl, 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 2-fluoro-3-chloro-1,4-phenylene, 2,3-difluoro-6-methyl-1,4-phenylene, 2,6-naphthalenediyl or 7,8-difluorochroman-2,6-diyl, and at least one of ring A and ring B is 2,3-difluoro-1,4-phenylene, 2-fluoro-3-chloro-1,4-phenylene, 2,3-difluoro-6-methyl-1,4-phenylene, or 7,8-difluorochroman-2,6-diyl; Z 1 is independently a single bond, —(CH 2 ) 2 —, —CH 2 O—, —COO— or —CF 2 O—; and j is 1, 2 or 3.