The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2024
Filed:
Mar. 26, 2024
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Jun Tsujimoto, Bizen, JP;
Yukimitsu Iwata, Okayama, JP;
Michiaki Takei, Okayama, JP;
Masafumi Tanaka, Misato, JP;
Keisuke Ikeda, Okayama, JP;
Gen Furui, Okayama, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
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/m) of the first surface specified in ISO 25178-2:2012.