The present invention relates to a retardation film having a
homeotropic alignment liquid crystal film, a polarizing film, an IPS (In-Plane Switching) mode
liquid crystal display and a method for preparing the same. More particularly, the present invention relates to a
homeotropic alignment liquid crystal film prepared from a liquid
crystal mixed solution containing a poly-merizable reactive liquid
crystal monomer so as to improve a viewing angle characteristic of an ISP mode
liquid crystal display and reduce a
color shift; a retardation film prepared by integrating an oriented retardation film and a method for preparing the same; a polarizing film having the retardation film located between a polarizing element or plate and a
liquid crystal cell and a method for preparing the same; and an IPS mode
liquid crystal display having the polarizing film. There is an
advantage in that since a
homeotropic alignment liquid
crystal film with a retardation of a thickness direction is prepared using a liquid crystal
mixed solution containing a reactive liquid crystal
monomer, a retardation film according to the present invention is not required for high-temperature heat treatment and cooling processes so that it can be applied to a high-speed continuous process. Further, there is an
advantage in that a retardation film having an oriented retardation film integrated with the homeotropic alignment liquid crystal film is arranged between a polarizing element or polarizing plate of an IPS mod
liquid crystal display and a
liquid crystal cell so that a
contrast ratio can be increased up to about 1520%, and a
color shift characteristic can be also improved.