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.

Date of Patent:
Nov. 25, 2025

Filed:

Feb. 07, 2023
Applicant:

The Hong Kong University of Science and Technology, Hong Kong, CN;

Inventors:

Valerii Vladimirovich Vashchenko, Hong Kong, CN;

Olena V. Vashchenko, Hong Kong, CN;

Abhishek Kumar Srivastava, Hong Kong, CN;

Zhibo Sun, Hong Kong, CN;

Zhengnan Yuan, Hong Kong, CN;

Hoi Sing Kwok, Hong Kong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/02 (2006.01); C09K 19/12 (2006.01); C09K 19/32 (2006.01); C09K 19/34 (2006.01);
U.S. Cl.
CPC ...
C09K 19/0225 (2013.01); C09K 19/12 (2013.01); C09K 19/322 (2013.01); C09K 19/3444 (2013.01); C09K 19/345 (2013.01); C09K 2019/122 (2013.01); C09K 2019/123 (2013.01); C09K 2019/323 (2013.01);
Abstract

A ferroelectric liquid crystal (FLC) material for the deformed helix FLC (DHFLC) electro-optical mode devices and shows optimum electro-optical properties including high tilt angle (>38°), and short helix pitch (<120 nm), and spontaneous polarization (>100 nC/cm) comprising at least two components, wherein at least one FLC component is a chiral compound of Formula (I): particularly: wherein Wand Ware chiral groups with polar substituent at chiral centre, A and B are independently N atom or CH groups providing that at least one of A or B is N atom. Other various groups are as defined herein.


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