Wave plate, method for producing same, and liquid crystal display device

摘要: A phase difference plate is manufactured by a method including step of forming multilayer body co-extruding or co-casting resin having positive intrinsic birefringence value and B negative value, the layer “a” containing “b” B; stretching at temperature T 1 in one direction; subsequently 2 lower than direction that approximately orthogonal to previous direction. The resulting has specific in-plane retardation Rea “a”, Rta thickness thereof, Reb “b”, Rtb thereof.