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:
Dec. 10, 2024
Filed:
Jan. 11, 2019
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Junya Eguchi, Tokyo, JP;
Masatoshi Nishimura, Tokyo, JP;
Yousuke Kousaka, Tokyo, JP;
Nobuyuki Tobe, Tokyo, JP;
Masahiro Torimoto, Tokyo, JP;
Takayuki Fukuda, Tokyo, JP;
Mitsuhiro Kuzuhara, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an optical layered body having excellent scratch resistance while having antireflective performance. The present invention relates to an optical layered body including a light-transmitting substrate; and at least an antiglare layer and a low refractive index layer disposed in the stated order on one surface of the light-transmitting substrate, wherein the low refractive index layer has an arithmetic average roughness Ra of projections and depressions of 4 nm or less and a ten-point average roughness Rz of the projections and depressions of 60 nm or less, where the Ra and the Rz are measured in any 5-μm square region of a surface of the low refractive index layer.