Liquid crystal display device

A liquid crystal display device comprising a first substrate, a second substrate, a liquid crystal composition layer sandwiched between the first substrate and the second substrate, a color filter constituted by a black matrix and at least RGB three-color pixel portions, a pixel electrode, and a common electrode,

• wherein the liquid crystal composition layer contains a liquid crystal composition that contains one or more compounds represented by general formula (I),
• (in the formula, R31 represents an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkenyloxy group having 2 to 10 carbon atoms;
• M31 to M33 each independently represent a trans-1,4-cyclohexylene group or a 1,4-phenylene group, one or two —CH2— in the trans-1,4-cyclohexylene group may be substituted with —O— as long as oxygen atoms are not directly adjacent to each other, and one or two hydrogen atoms in the phenylene group may be substituted with fluorine atoms;
• X31 and X32 each independently represent a hydrogen atom or a fluorine atom;
• Z31 represents a fluorine atom, a trifluoromethoxy group, or a trifluoromethyl group;
• n31 and n32 each independently represent 0, 1, or 2 and n31+n32 is 0, 1, or 2;
• and when a plurality of M31 and M33 are present, the plurality of M31 may be the same or different and the plurality of M33 may be the same or different) and that contains one or more compounds selected from the group consisting of compounds represented by general formula (II-a) to general formula (II-f),
• (in the formulae, R19 to R30 each independently represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or an alkenyl group having 2 to 10 carbon atoms;
• and X21 represents a hydrogen atom or a fluorine atom),
• the color filter is a color filter containing an organic pigment, the organic pigment having a slope parameter of 2 or less,
• wherein in a scattering profile analysis of the organic pigment in the color filter, the analysis including a step (A) of measuring an ultra-small angle X-ray profile of the organic pigment by ultra-small angle X-ray scattering, a step (B) of calculating a curve point on the scattering profile, a step (C) of calculating an analysis region (c1) set in accordance with the curve point, and a step (D) of calculating the slope parameter in the analysis region c1.