RETARDATION PLATE AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a retardation plate being thinner and lower in a haze than a conventional one, and provide a manufacturing method of the retardation plate capable of stably manufacturing the retardation plate.SOLUTION: A retardation plate includes a resin layer B containing resin B having a negative intrinsic birefringence value, and a resin layer A provided on at least one surface of the resin layer B and containing resin A having a positive intrinsic birefringence value. The resin A contains polycarbonate having an alicyclic structure at a lateral chain. The resin B contains polystyrene polymer. A manufacturing method includes a step of extending a pre-extention film.