Patent ID: 7211304
Filing Date: 2007-05-01
Classification: C09K,G02B,G02F

Abstract:
1. A multilayer compensator comprising one or more polymeric first layers and one or more polymeric second layers, wherein: said first layers comprise a polymer having an out-of-plane (Δn said second layers comprise an amorphous polymer having an out-of-plane birefringence more negative than −0.01 or more positive +0.01; wherein the term “amorphous” means that the polymer does not show long range order by X-ray diffraction and analysis; and the overall in-plane retardation (R wherein the in-plane retardation (Rin) of said one or more first layers is 30% or less of the overall in-plane retardation (Rin) of said multilayer compensator.