| abstract |
The present invention relates to a compound represented by the formula (i), a liquid crystal composition using the compound, and a liquid crystal display device using the liquid crystal composition. The compound represented by the formula (i) has a partial structure K i1 represented by the general formulas (K-1) to (K-17) and has a ring B having at least two P-Sp- groups. When used in a liquid crystal composition, it is adsorbed on a substrate sandwiching the liquid crystal composition (liquid crystal layer), and the liquid crystal molecules are maintained in a vertically aligned state without providing a PI layer. It is possible to improve the stability of the orientation and the low-temperature storage property. |