logo

For the Inventor, By the Inventor

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.:

US 11391876 B1

PDFFull Text
Date of Patent:
Jul. 19, 2022

Filed:

Feb. 14, 2018

Optically anisotropic laminate, circularly polarizing plate and image display device

Applicant:

Zeon Corporation, Tokyo, JP;

Inventors:

Kazuhiro Osato, Tokyo, JP;

Masashi Aimatsu, Tokyo, JP;

Assignee:

ZEON CORPORATION, Tokyo, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Anthony J Frost

Int. Cl.
CPC ...
G02B 5/30 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); G02F 1/13363 (2006.01); G02B 1/04 (2006.01); G02F 1/1335 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/302 (2013.01); G02B 1/04 (2013.01); G02F 1/133631 (2021.01); B32B 2457/20 (2013.01); C09K 2323/00 (2020.08); C09K 2323/03 (2020.08); C09K 2323/05 (2020.08); G02F 1/13363 (2013.01); G02F 1/133528 (2013.01); G02F 1/133541 (2021.01); G02F 1/133638 (2021.01); G02F 2413/06 (2013.01); H01L 51/5281 (2013.01);
Abstract

An optically anisotropic layered body including a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies 220 nm<Re1(590)<330 nm, Re1(450)/Re1(550)≤1.0, Re1(650)/Re1(550)≥1.0, and 0.95<NZ1<2.00, and the second optically anisotropic layer satisfies 110 nm<Re2(590)<165 nm, Re2(450)/Re2(550)≤1.0, Re2(650)/Re2(550)≥1.0, and −1.5≤NZ2≤0.00.

Find Patent Forward Citations

Osato, Kazuhiro. (2022). Optically anisotropic laminate, circularly polarizing plate and image display device (U.S. Patent No. 11391876). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11391876

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…