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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 10705274 B1

PDFFull Text
Date of Patent:
Jul. 07, 2020

Filed:

Mar. 27, 2017

Optically anisotropic layer and production method therefor, optically anisotropic laminate and production method therefor, optically anisotropic transfer body, polarization plate, and image display device

Applicant:

Zeon Corporation, Chiyoda-ku, Tokyo, JP;

Inventor:

Manabu Ito, Tokyo, JP;

Assignee:

ZEON COPORATION, Chiyoda-ku, Tokyo, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Collin X Beatty

Assistant Examiner:

Grant A Gagnon

Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02F 1/1335 (2006.01); H01L 51/52 (2006.01); C09K 19/20 (2006.01); C09K 19/54 (2006.01); G02F 1/13363 (2006.01); C09K 19/38 (2006.01); H01L 51/50 (2006.01); H05B 33/02 (2006.01); C09K 19/30 (2006.01); B32B 7/02 (2019.01); C09K 19/34 (2006.01); C09K 19/24 (2006.01); G02F 1/137 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3016 (2013.01); B32B 7/02 (2013.01); C09K 19/2007 (2013.01); C09K 19/24 (2013.01); C09K 19/30 (2013.01); C09K 19/3001 (2013.01); C09K 19/34 (2013.01); C09K 19/3497 (2013.01); C09K 19/38 (2013.01); C09K 19/3838 (2013.01); C09K 19/3852 (2013.01); C09K 19/54 (2013.01); G02B 5/30 (2013.01); G02F 1/137 (2013.01); G02F 1/1335 (2013.01); G02F 1/13363 (2013.01); G02F 1/133528 (2013.01); G02F 1/133634 (2013.01); H01L 51/50 (2013.01); H01L 51/5281 (2013.01); H05B 33/02 (2013.01); C09K 2219/03 (2013.01); G02F 2001/13706 (2013.01); G02F 2001/133541 (2013.01); G02F 2001/133562 (2013.01); G02F 2001/133633 (2013.01); G02F 2001/133637 (2013.01); G02F 2001/133638 (2013.01);
Abstract

An optically anisotropic layer including a polymer and a compound having a mesogen skeleton, wherein the polymer has a property such that a film of the polymer that is formed by a coating method using a solution of the polymer satisfies nz(P)>nx(P)≥ny(P), wherein nx(P) is a refractive index in a direction which, among in-plane directions of the film, gives a maximum refractive index, ny(P) is a refractive index in a direction which is perpendicular to the direction of nx(P) among the in-plane directions of the film, and nz(P) a refractive index in a thickness direction of the film, and the compound having a mesogen skeleton shows an in-plane retardation with reverse wavelength distribution under specific conditions.

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