Liquid crystal composition and use thereof

A liquid crystal composition, wherein the liquid crystal composition comprises:

• (i) at least one compound selected from a group consisting of the following compounds
• and combinations thereof;
• in which
• R11 represents —H, —F, C1-7 alkyl or alkoxy, C2-7 alkenyl or alkenoxy, —OR51OR61,
• wherein one or more H on the alkyl or alkoxy and the alkenyl or alkenoxy can be substituted by F,
• R21 is —OR51OR61;
• wherein R51 represents C3-12 alkyl or C3-12 alkenyl and R61 represents a linear C1-10 alkyl or C2-10 alkenyl;
• (ii) at least one polymerizable compound of general formula II
• in which,
• P1 and P2 each independently represents
• or —SH;
• r1 represents 1, 2 or 3;
• r2 and r3 each independently represents a positive integer of 0˜6;
• r4 and r5 each independently represents 0, 1, 2, 3 or 4;
• Z2 represents single bond, —CH2CH2—, —COO—, —OCO—, —CH2O—, —OCH2— or —CH═CH—COO—;
• Zp1 and Zp2 are same or different and each independently selected from a group consisting of single bond, —O—, —S—, —NH—, —NHCOO—, —OCONH—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CF═CH—, —CH═CF—, —CF═CF—, —CO—, —COO—, —OCO—, —OCOO—, —CH2—, —OCH2—, —SCH2—, —CH2S—, —CH═CH—, —C≡C—, —CH═CH—COO— and —OCO—CH═CH—;
• Y1 and Y2 each independently represents H, halogen, C1-3 alkyl or alkoxy,
• provided that if Zp1 or Zp2 is a single bond, then either Y1 or Y2 is halogen or r1 is 2 or 3;
• (iii) at least one compound of general formula III
• R3 and R4 each independently represents —H, —F, C1-12 alkyl or alkoxy, C2-12 alkenyl or alkenoxy,
• wherein one or more H on the alkyl or alkoxy and the alkenyl or alkenoxy can be substituted by F;
• Z3 represents single bond, —COO—, —OCO—, —CH2O—, —OCH2— or —CH2CH2—;
• L3 and L4 each independently represents —F, —Cl, —CN or —NCS;
• ring
• represents
• wherein one or more —CH2— in
• can be replaced by —O—, one or more H on
• can be substituted by halogen;
• n1 represent 0, 1, 2 or 3, and when n1 is 2 or 3, ring
• can be same or different, Z3 can be same or different;
• n2 represent 0 or 1;
• and
• (iv) at least one compound of general formula IV
• in which,
• R7 and R8 each independently represents H, C1-12 alkyl or alkoxy, or C2-12 alkenyl or alkenoxy;
• ring
• and ring
• each independently represents
• r represents 1, 2 or 3;
• wherein the compound of formula I-3, I-4, and/or I-9 provides 1 to 30% by weight of the total amount of the liquid crystal composition, the compound of general formula II provides 0.001 to 5% by weight of the total amount of the liquid crystal composition, the compound of general formula III provides up to 70% by weight of the total amount of the liquid crystal composition, and the compound of general formula IV provides up to 70% by weight of the total amount of the liquid crystal composition.