公开(公告)号：US12135406B2

公开(公告)日：2024-11-05

申请号：US18617293

申请日：2024-03-26

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Jun Tsujimoto ,  Yukimitsu Iwata ,  Michiaki Takei ,  Masafumi Tanaka ,  Keisuke Ikeda ,  Gen Furui

IPC: G02B1/11 ,  G02B5/30

Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 μm or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp≤2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 μl pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.