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. 08, 2020
Filed:
Oct. 05, 2016
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Junya Eguchi, Okayama, JP;
Yoshinari Matsuda, Tsukuba, JP;
Hiroyuki Morikane, Tsukuba, JP;
Shubou Taya, Okayama, JP;
Yuki Tobe, Okayama, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Abstract
Provided is an optical sheet which is excellent in anti-glare property, contrast, and image clarity, as well as capable of displaying a powerful moving image, wherein at least one surface of the optical sheet is an uneven surface, and the uneven surface satisfies following conditions (1) to (3), provided that Rzis a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.8 mm, Rzis a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.25 mm, and SD is a standard deviation of an arithmetic average roughness Raaccording to JIS B0601: 1994 with a cut-off value of 0.8 mm:0.300 μm≤≤0.650 μm  (1)0.170 μm≤≤0.400 μm  (2)SD≤0.015 μm  (3).