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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 10698144 B1

PDFFull Text
Date of Patent:
Jun. 30, 2020

Filed:

Jun. 19, 2019

Phase difference film, optical film, and display device

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Kunihiro Atsumi, Kanagawa, JP;

Yukito Saitoh, Kanagawa, JP;

Shinichi Morishima, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorneys:

Edwards Neils LLC

Jean C. Edwards, Esq.

Primary Examiner:

Lawrence D Ferguson

Int. Cl.
CPC ...
B32B 7/02 (2019.01); G02B 5/30 (2006.01); B29C 33/40 (2006.01); B29C 41/00 (2006.01); B29C 41/02 (2006.01); C09K 19/38 (2006.01); G02F 1/13363 (2006.01); G02F 1/13 (2006.01); B29L 11/00 (2006.01); H01L 27/32 (2006.01); H05B 33/02 (2006.01); G09F 9/30 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3016 (2013.01); B29C 33/40 (2013.01); B29C 41/003 (2013.01); B29C 41/02 (2013.01); C09K 19/3861 (2013.01); C09K 19/3895 (2013.01); G02B 5/30 (2013.01); G02F 1/13 (2013.01); G02F 1/13363 (2013.01); B29L 2011/00 (2013.01); G09F 9/30 (2013.01); H01L 27/32 (2013.01); H01L 51/50 (2013.01); H05B 33/02 (2013.01);
Abstract

A phase difference film is formed by using a liquid crystal compound and that indicates an Nz factor of more than 0 and less than 1, an optical film with same, and a display device. The phase difference film is formed by using a composition including a polymerizable liquid crystal compound having a mesogen group, where an order parameter of the mesogen group in an in-plane slow axis direction of the phase difference film is set as Sx, an order parameter of the mesogen group in a direction orthogonal to the in-plane slow axis direction in a plane is set as Sy, and an order parameter of the mesogen group in a thickness direction of the phase difference film is set as Sz, in a case where the mesogen group has a rod or a disc shape, differing Expressions are satisfied.

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