POLARIZING PLATE WITH RETARDATION LAYER, MANUFACTURING METHOD OF THE SAME AND IMAGE DISPLAY DEVICE USING THE POLARIZING PLATE WITH RETARDATION LAYER

To provide a polarizing plate with a retardation layer which can realize an image display device in which reflection hue change under a high temperature environment is suppressed.SOLUTION: A polarizing plate with a retardation layer according to an embodiment of the present invention comprises: a polarizing plate which includes polarizers and a protective layer in at least one of the polarizers; a first retardation layer which is arranged on the side opposite to the viewing side of the polarizing plate; and a second retardation layer which is pasted to the side opposite to the polarizing plate of the first retardation layer via an adhesive layer. The first retardation layer is the retardation layer other than a C plate and the second retardation layer is the C plate. In one embodiment, the adhesive layer consists of the activation energy ray curable adhesive, and the cure shrinkage of the adhesive is 5% or greater. In another embodiment, the laminated body of the first retardation layer and the second retardation layer is subjected to the annealing treatment.SELECTED DRAWING: Figure 1 【課題】高温環境下における反射色相変化が抑制された画像表示装置を実現し得る位相差層付偏光板を提供すること。【解決手段】本発明の実施形態による位相差層付偏光板は、偏光子と偏光子の少なくとも一方に保護層とを含む偏光板と、偏光板の視認側と反対側に配置された第１の位相差層と、第１の位相差層の偏光板と反対側に接着剤層を介して貼り合わせられた第２の位相差層と、を有する。第１の位相差層はＣプレート以外の位相差層であり、第２の位相差層はＣプレートである。１つの実施形態においては、接着剤層は活性エネルギー線硬化型接着剤で構成され、接着剤の硬化収縮率は５％以上である。別の実施形態においては、第１の位相差層と第２の位相差層との積層体が、アニール処理されている。【選択図】図１