Patent ID: 7876403
Filing Date: 2011-01-25
Classification: B32B,C09K,G02B,G02F

Abstract:
1. An optical compensation film comprising at least a first optically anisotropic layer and a second optically anisotropic layer, the first optically anisotropic layer having an in-plane retardation of 0 to 10 nm and an in-thickness direction retardation of −400 to −80 nm, the second optically anisotropic layer having an in-plane retardation of 20 to 150 nm and an in-thickness direction retardation of 100 to 300 nm, and at least either one of the first and second optically anisotropic layer being a polymer film; and wherein the first optically anisotropic layer comprises rod-like liquid crystal molecules fixed in a homeotropic alignment state, and a retardation of the first optically anisotropic layer measured in a direction rotated by 40° from a normal line of the layer plane satisfies a relationship below: Where, Re(40)