Blue phase liquid crystal display device and manufacturing method thereof

The invention discloses a blue phase liquid crystal display device and a manufacturing method thereof, and the method comprises the following steps: configuring a first substrate opposite to and parallel with a second substrate, wherein the first substrate comprises a first electrode, and the second substrate comprises a second electrode; configuring a blue phase liquid crystal layer between the first substrate and the second substrate, wherein the blue phase liquid crystal layer comprises homocercal blue phase liquid crystals and polymer monomers; applying pressure on the first electrode andthe second electrode to form a vertical electric field in the blue phase liquid crystal layer; and enabling a light source to irradiate in the blue phase liquid crystal layer to carry out polymerization on the polymer monomers to generate macromolecule stabilized homocercal blue phase liquid crystals. In addition, a blue phase liquid crystal display device is disclosed in the invention.