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:
Dec. 09, 2008
Filed:
Jan. 16, 2003
Andrii Golovin, Kent, OH (US);
Sergij Shiyanovskii, Kent, OH (US);
Oleg Lavrentovich, Kent, OH (US);
Andrii Golovin, Kent, OH (US);
Sergij Shiyanovskii, Kent, OH (US);
Oleg Lavrentovich, Kent, OH (US);
Kent State University, Kent, OH (US);
Abstract
A method for fast switching a dual frequency (FIG.) liquid crystal cell is disclosed. The liquid crystal cell has opposed substrates () with a dual frequency liquid crystal material () disposed therebetween. Each substrate has an electrode that is connected to a power supply () that is able to apply different voltage magnitudes at different frequencies. And each substrate () has an alignment layer that imparts a high pretilt angle to the liquid crystal material, wherein no application of voltage results in the material exhibiting an initial state. A transition driving pulse () of a first magnitude is applied to the material at a first frequency to accelerate a transition into a first state from the initial state. A holding pulse () of a second magnitude is applied to the material at the first frequency to maintain the first state, wherein the second magnitude is less than the first magnitude.