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:
Sep. 06, 2022
Filed:
Mar. 09, 2018
Applicant:
Kent State University, Kent, OH (US);
Inventors:
Assignee:
Kent State University, Kent, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/02 (2006.01); C09K 19/04 (2006.01); C09K 19/58 (2006.01); G02F 1/137 (2006.01); C09K 19/54 (2006.01);
U.S. Cl.
CPC ...
C09K 19/0258 (2013.01); C09K 19/04 (2013.01); C09K 19/58 (2013.01); G02F 1/13718 (2013.01); C09K 2019/0444 (2013.01); C09K 2019/548 (2013.01); G02F 1/13775 (2021.01);
Abstract
A fast flexoelectro-optic switching device containing bimesogen-doped and polymer-stabilized vertical standing helix (PSVSH) in a cholesteric liquid crystal. The PSVSH device exhibits a response time of less than 0.7 millisecond, high contrast and negligible hysteresis which is suitable for applications including blur-free displays, field-sequential color displays and active optical elements.