Patent ID: 6899823
Filing Date: 2005-05-31
Classification: C09K

Abstract:
1. A liquid crystal device comprising a pair of substrates provided, respectively, with electrodes and a liquid crystal composition containing at least a potential liquid crystal polymeric compound and a liquid crystal compound arranged between the substrates in a state of phase separation, wherein the potential liquid crystal polymeric compound has at least two monomer unit structures, each of the monomer unit structures being expressed by general formula (2): where A′ is a polyacryl or polymethacryl monomer unit; B is a single bond or an alkyl group; D is a single bond, —O—, —COO— or —OCO—; E is a substituted or unsubstituted aromatic or aliphatic ring, wherein each E may be the same or different when e is at least 2; G is a single bond, —O—, —COO—, —OCO—, —CH═CH— or —C≡C—, wherein each G may be the same or different when e is at least 2; J is a substituted or unsubstituted aromatic or aliphatic ring, wherein each J may be the same or different when j is at least 2; K is a single bond, —O—, —COO— or —OCO—; L is an end group wherein L is either an alkyl group or a polyoxyalkylene group, either of which is substituted with —OH or —COOH at an end or a side chain; e and j are, independently, an integer from 0 to 5, such that e+j≧2, and wherein the liquid crystal compound changes its direction of orientation when a voltage is applied between the electrodes and substantially maintains the direction of orientation after suspending the voltage application.