Liquid crystal composition and liquid crystal display element

A polymerizable liquid crystal compound represented by formulas I-1 to I-23:

• wherein
• each S independently represents H, a C1-C5 alkyl group, a C1-C5 alkoxy group, a fluorine-substituted C1-C5 alkyl group, a fluorine-substituted C1-C5 alkoxy group, F or Cl, wherein any one or more unconnected CH2 may be independently replaced by —O—, —S—, —CO—, —CH2O—, —OCH2—, —COO—, —OOC— or an acrylate group or a methacrylate group;
• each P independently represents
• each Sp independently represents a single bond, a C1-C5 alkyl group, a C1-C5 alkenyl group, wherein any one or more unconnected CH2 may be replaced by —O—, —S—, —CO—, —CH2O—, —OCH2—, —COO—, —OOC— or an acrylate group;
• and each o independently represents 0, 1, 2 or 3.