Patent ID: 8715528

Claim:
A reflective liquid crystal material formulation, comprising at least two of (A) first liquid crystal component, (B) second liquid crystal component, and (C) third liquid crystal component, wherein (A) the first liquid crystal component having a first reflective wavelength comprises: 100 parts by weight of a first liquid crystals host comprising 100% of a first component; and 3-10 parts by weight of a first chiral agent; (B) the second liquid crystal component having a second reflective wavelength comprises: 100 parts by weight of a second liquid crystals host comprising 60-80% of the first component and 20-40% of a second component; and 3-10 parts by weight of a second chiral agent; and (C) the third liquid crystal component having a third reflective wavelength comprises: 100 parts by weight of a third liquid crystals host comprising 10-60% of the first component and 40-90% of the second component; and 3-10 parts by weight of a third chiral agent, wherein the third liquid crystal component is different from the second liquid crystal component, wherein the first component comprises a compound represented by formula (I) of and a compound represented by formula (II) of and the second component comprises a compound represented by formula (III) of wherein each R 1 is independent and is selected from a group consisting of hydrogen, C 1-15 straight or branched alkyl group, and C 1-15 straight or branched alkenyl group; one or more hydrogen atom bonded to the alkyl or alkenyl group is substituted optionally by a halogen atom, cyano group, or perfluoromethyl group; and one or more —CH 2 — of the alkyl or alkenyl group is substituted optionally by —O—, —S—, R 2 is selected from a group consisting of hydrogen, C 1-15 straight or branched alkyl group, and C 1-15 straight or branched alkenyl group; one or more hydrogen atom bonded to the alkyl or alkenyl group is substituted optionally by a halogen atom, cyano group, or perfluoromethyl group; and one or more —CH 2 — of the alkyl or alkenyl group is substituted optionally by —O—, —S—, A and B are independent and selected from a group consisting of trans-1,4-cyclohexylene, and 1,4-phenylene; one or more —CH2— of A and B is substituted optionally by —O—, or —NH—; one or more ═CH— of A and B is substituted optionally by ═N—; and one or more hydrogen atom of A and B is substituted optionally by a halogen atom, cyano group, or perfluoromethyl group; each Z 1 is independent and is selected from a group consisting of —CH 2 —, —O—, —S—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 —, cis or trans —C═C—, and —C≡C—; each Z 2 is independent and is selected from a group consisting of single bond, —CH 2 —, —O—, —S—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 —, cis or trans —C═C—, and —C≡C—; n is 0 or an integral of 1-3, m is 0 or an integral of 1-3, and the sum of n and m is 1-3; and L is hydrogen or fluorine.