Multilayer optical compensator, liquid crystal display, and process

摘要

A process for manufacturing a multilayer compensator comprising one or more polymeric A layers and one or more polymeric B layers, wherein said A layers comprise a polymer having an out-of-plane birefringence not more negative than -0.01, said B layers comprise an amorphous polymer having an out-of-plane birefringence more negative than -0.01, and the overall in-plane retardation (R_in) of said multilayer compensator is greater than 20 nm and the out-of-plane retardation (R_th) of said multilayer compensator is more negative than -20 nm wherein the process employs laminating layers or coating the layers from solvent.