Patent ID: 9261733
Filing Date: 2016-02-16
CPC Classification: C09K,G02F

Claim Text:
1. A liquid crystal display device comprising a first substrate that includes a common electrode, a second substrate that includes a pixel electrode, and a liquid crystal composition layer sandwiched between the first substrate and the second substrate, in which liquid crystal molecules in the liquid crystal composition layer are controlled by applying charges between the common electrode and the pixel electrode substantially vertically to the first substrate and the second substrate, wherein the liquid crystal display device includes a vertical alignment film on at least one of the first substrate and the second substrate so that an alignment direction of the liquid crystal molecules in the liquid crystal composition layer is controlled to be substantially vertical to the surfaces of the first substrate and the second substrate that are adjacent to the liquid crystal composition layer, the vertical alignment film contains a polymer of a polymerizable compound having a reactive group, and a liquid crystal composition constituting the liquid crystal composition layer contains a compound represented by general formula (I) (In the formula, R 1 and R 2 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms; A represents a 1,4-phenylene group or a trans-1,4-cyclohexylene group; 1 represents 1 or 2; and when 1 is 2, the two A may be the same or different from each other) and a compound represented by general formula (II) (In the formula, R 3 represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms; R 4 represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 4 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 3 to 8 carbon atoms; B represents a 1,4-phenylene group or a trans-1,4-cyclohexylene group; m represents 0, 1, or 2; and when m is 2, the two B may be the same or different from each other).