Patent ID: 7468777
Filing Date: 2008-12-23
Classification: G02B,G02F

Abstract:
1. A method of producing an elliptically polarizing plate, comprising the steps of: forming a first birefringent layer on a surface of a transparent protective film (T); laminating a polarizer on a surface of the transparent protective film (T); laminating a polymer film on a surface of the first birefringent layer, so as to form a second birefringent layer; and forming a third birefringent layer having a refractive index profile of nz>nx=ny on a surface of the second birefringent layer, wherein the first birefringent layer is arranged on the opposite side against the polarizer with respect to the transparent protective film (T), and wherein the step of forming the first birefringent layer comprises the steps of: applying an application liquid containing a liquid crystal material onto a substrate subjected to an alignment treatment; treating the applied liquid crystal material at a temperature at which the liquid crystal material exhibits a liquid crystal phase, so as to form the first birefringent layer on the substrate; and transferring the first birefringent layer formed on the substrate onto a surface of the transparent protective film (T).