OPTICAL FILM AND USE THEREOF

To provide an optical film which can achieve both of the bending/folding resistance and surface hardness.SOLUTION: An optical film is formed by a cured product of a curable composition containing an epoxy(meth)acrylate represented by the formula (1) below. [In the formula, X represents a particular coupling group, the ring Z1a and the ring Z1b each represent an arene ring, which are identical to or different from each other, R1a and R1b each represent a substituent group, which are identical to or different from each other, m1 and m2 each represent an integer of 0 or larger, which are identical to or different from each other, A1a and A1b each represent a straight chain-like or branched chain-like alkylene group, which are identical to or different from each other, n1 and n2 each represent an integer of 1 or larger, which are identical to or different from each other, R2a and R2b each represent a hydrogen atom or a methyl group, which are identical to or different from each other.] The optical film is to be incorporated in a display part of an image display device which is repeatedly folded or bent in use.SELECTED DRAWING: None 【課題】折り曲げ耐性と表面硬度とを両立できる光学フィルムを提供する。【解決手段】下記式（１）で表されるエポキシ（メタ）アクリレートを含む硬化性組成物の硬化物で光学フィルムを形成する。［式中、Ｘは、特定の連結基を示し、環Ｚ１ａおよび環Ｚ１ｂは、互いに同一でまたは異なって、アレーン環を示し、Ｒ１ａおよびＲ１ｂは、互いに同一でまたは異なって、置換基を示し、ｍ１およびｍ２は、互いに同一でまたは異なって、０以上の整数を示し、Ａ１ａおよびＡ１ｂは、互いに同一でまたは異なって、直鎖状または分岐鎖状アルキレン基を示し、ｎ１およびｎ２は、互いに同一でまたは異なって、１以上の整数を示し、Ｒ２ａおよびＲ２ｂは、互いに同一でまたは異なって、水素原子またはメチル基を示す］前記光学フィルムは、繰り返し折り曲げて使用される画像表示装置の表示部に組み込まれる。【選択図】なし