| abstract |
High durability and reliability can be exhibited against light leakage due to repeated driving or the like in an element, etc., low driving voltage can be achieved, and phase stability is excellent while having a low polymer content. To provide a molecule / liquid crystal composite material and a liquid crystal display element using the material. The composite material of the present invention comprises a polymerizable unit (a) of a specific polyfunctional compound and a polymerizable unit (b) of a monofunctional compound, which is a liquid crystal material having no polymerizable group (Y ) And polymerized in an optically isotropic phase state, at least a part of one of the units (a) and (b) is derived from the methacrylate skeleton compound, and at least a part of the other is derived from the acrylate skeleton compound. The content of the structural unit derived from the methacrylate skeleton compound is 1 to 99% by mass with respect to the entire copolymer (X) of the units (a) and (b), and the copolymer (X) is 1 to 40% by mass. %, A liquid crystal material (Y) exhibiting a chiral nematic phase or BP at room temperature (99) to 60% by mass, and optically isotropic when no electric field is applied. [Selection] Figure 2 |