| 主权项 |
1. A liquid crystal-polymer composite material comprising: a nematic liquid crystal composition containing at least two types of achiral liquid crystal compounds; at least one type of chiral compound; and a polymer formed by polymerization of at least one type of polymerizable compound
wherein the liquid crystal-polymer composite material exhibits a blue phase that includes a blue phase III, wherein the liquid crystal-polymer composite material exhibits a blue phase III which coexists with neither a blue phase I, a blue phase II, nor a liquid phase in a temperature range of 2° C. or more, and wherein the nematic liquid crystal composition containing at least two types of achiral liquid crystal compounds is represented by general formula (I)
R11-A11-L11-A12L12-A13a11R12 (I) wherein R11 and R12 each independently represent an alkyl group having 1 to 16 carbon atoms, an alkoxy group having 1 to 16 carbon atoms, an alkenyl group having 2 to 16 carbon atoms, or an alkenyloxy group having 2 to 16 carbon atoms, wherein one methylene group in R11 or R12 or at least two methylene groups therein which are not adjacent to each other each may be independently substituted by —O—, —S—, —CO—, —COO—, or —OCO— so that oxygen atoms or sulfur atoms are not directly bonded to each other, and at least one hydrogen atom in R11 or R12 may be substituted by a fluorine atom; A11, A12, and A13 each independently represent (a) a trans-1,4-cyclohexylene group wherein one methylene group present in this group or at least two methylene groups therein which are not adjacent to each other each may be independently substituted by an oxygen atom or a sulfur atom, and at least one hydrogen atom present in this group each may be independently substituted by a cyano group, a fluorine atom, or a chlorine atom, (b) a 1,4-phenylene group wherein one —CH═ present in this group or at least two —CH═ therein which are not adjacent to each other may be substituted by at least one nitrogen atom, and at least one hydrogen atom present in this group each may be independently substituted by a cyano group, a fluorine atom, or a chlorine atom, or (c) a group selected from the group consisting of a 1,4-cyclohexenylene group, a 1,4-bicyclo(2,2,2)octylene group, a naphthalene-2,6-diyl group, a decahydronaphthalene-2,6-diyl group, and a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group wherein one —CH═ present in each of those groups or at least two —CH═ therein which are not adjacent to each other may be substituted by at least one nitrogen atom, and at least one hydrogen atom present in each of those groups each may be independently substituted by a cyano group, a fluorine atom or a chlorine atom); a11 represents 0, 1, or 2; and L11 and L12 each independently represent a single bond, —CH2CH2—, —(CH2)4—, —OCH2—, —CH2O—, —COO—, —OCO—, —CF2CF2—, —OCF2—, —CF2O—, —CH═N—N═CH—, —CH═CH—, —CF═CF—, —C≡C—, —N═N—, —CH═N—, —SCH2—, —CH2S—, —CSO—, —OCS—, —CF2S—, or —SCF2—. |
