Injection and planar alignment method of the cholesteric liquid crystal for a liquid crystal display device according to the present invention, (S1) is located to view the first substrate of a rectangular and a rectangular second substrate face each other, between the first substrate and the second substrate There is a spacer is interposed, and the cell gap is maintained, the second and the third side is sealed in the liquid crystal filling the space by ssilbu formed along the edge of the first substrate and the second substrate, the length of the remaining one side equal to the length of the liquid filled space preparing a liquid crystal cell for a liquid crystal display device having the liquid crystal inlet opening to have; (S2) said liquid crystal cell and the cholesteric In the liquid accommodating container accommodating the metallic liquid in the vacuum chamber, the liquid crystal injection port is located apart from each other parallel to the cholesteric liquid crystal layer contained in the liquid storage container and reducing the pressure inside the vacuum chamber the step of; And (S3) as increasing the pressure inside the vacuum chamber and then the liquid crystal injection port to be locked inside the cholesteric liquid crystal layer, the cholesteric liquid crystal is a cholesteric liquid crystal injecting direction and a shear stress parallel to the direction of receive a step of filling liquid crystal in the space to the inlet.
According to the invention, while injecting a cholesteric liquid crystal without forming the alignment film on the substrate can be at the same time it induces planar alignment of the cholesteric liquid crystal, the reduction being to shorten the manufacturing process of the liquid crystal display device cost of the alignment film formation process the productivity is greatly improved.