Liquid crystal display and liquid crystal composition comprised thereof

A liquid crystal composition comprised in a liquid crystal display, the liquid crystal composition comprising:

• at least one of liquid crystal compounds represented by the following Chemical Formula 1, at least one of liquid crystal compounds represented by the following Chemical Formula 2 and at least one of liquid crystal compounds represented by the following Chemical Formulae 5-4 to 5-8:
• where Y is H or alkyl having 1 to 5 C atoms, the alkyl having 1 to 5 C atoms includes being not substituted or wherein one or more —CH2— groups each, independently of one another, is substituted by —C≡C—, —CF2O—, —O—, —CO—O—, —O—CO— or —O—CO—O— so that O atoms are not directly linked to each other, 1 to 3 H atoms are substituted by halogen, or combination thereof,
• A is 1,4-cyclohexylene or 1,4-phenylene,
• Z1 to Z4 each, independently of one another, is H, F, Cl, or alkyl having 1 to 2 C atoms,
• B is 1,4-cyclohexylene or 1,4-phenylene, wherein B is 1,4-phenylene when at least one of Z1 to Z4 is F or Cl,
• n is 0 or 1,
• Z is H, F, Cl, or alkyl having 1 to 2 C atoms, wherein Z is H when Y is H,
• X is F, Cl, or alkyl having 1 to 4 C atoms, the alkyl having 1 to 4 C atoms includes being not substituted or wherein one or more —CH2— groups each, independently of one another, is substituted by —C≡C—, —CF2O—, —O—, —CO—O—, —O—CO— or —O—CO—O— so that O atoms are not directly linked to each other, 1 to 3 H atoms are substituted by halogen, or combination thereof, and
• R and R′ each, independently of one another, is alkyl or alkoxy having 1 to 4 C atoms,
• where X′ is hydrogen, F, Cl, or alkyl having 1 to 15 C atoms, the alkyl having 1 to 15 C atoms includes being not substituted or wherein one or more —CH2— groups each, independently of one another, is substituted by —C≡C—, —CF2O—, —CH═CH—, —CO—, —O—, —CO—O—, —O—CO— or —O—CO—O— so that O atoms are not directly linked to each other, 1 to 3 H atoms are substituted by halogen, or combination thereof.

A liquid crystal composition comprising:

• at least one of liquid crystal compounds represented by the following Chemical Formula 1, at least one of liquid crystal compounds represented by the following Chemical Formula 2 and at least one of liquid crystal compounds represented by the following Chemical Formulae 5-4 to 5-8:
• where Y is H or a hydrocarbon group having 1 to 10 C atoms, the hydrocarbon group having 1 to 10 C atoms optionally includes one or more hetero atoms,
• A is 1,4-cyclohexylene or 1,4-phenylene,
• Z1 to Z4 each, independently of one another, is H, F, Cl, or alkyl having 1 to 2 C atoms,
• B is 1,4-cyclohexylene or 1,4-phenylene, wherein B is 1,4-phenylene when at least one of Z1 to Z4 is F or Cl,
• n is 0 or 1,
• Z is H, F, Cl, or alkyl having 1 to 2 C atoms, wherein Z is H when Y is H,
• X is F, Cl, or a hydrocarbon group having 1 to 8 C atoms, the hydrocarbon group having 1 to 8 C atoms optionally includes one or more hetero atoms,
• and
• R and R′ each, independently of one another, is alkyl or alkoxy having 1 to 4 C atoms
• where X′ is hydrogen, F, Cl, or alkyl having 1 to 15 C atoms, the alkyl having 1 to 15 C atoms includes being not substituted or wherein one or more —CH2— groups each, independently of one another, is substituted by —C≡C—, —CF2O—, —CH═CH—, —CO—, —O—, —CO—O—, —O—CO— or —O—CO—O— so that O atoms are not directly linked to each other, 1 to 3 H atoms are substituted by halogen, or combination thereof.