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 8953139 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 10, 2015

Filed:

Jul. 08, 2011
Applicants:

Sven T Lagerwall, Göteborg, SE;

Per Rudquist, Göteborg, SE;

Inventors:

Sven T Lagerwall, Göteborg, SE;

Per Rudquist, Göteborg, SE;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/02 (2006.01); G02F 1/133 (2006.01); C09K 19/20 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01); G02F 1/00 (2006.01); C09K 19/04 (2006.01); G02F 1/141 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13306 (2013.01); C09K 19/0266 (2013.01); C09K 19/2021 (2013.01); G09G 3/2007 (2013.01); G09G 3/3651 (2013.01); G02F 1/0045 (2013.01); C09K 2019/044 (2013.01); G02F 2001/1412 (2013.01); G09G 2300/0491 (2013.01); G09G 2310/08 (2013.01);
Abstract

Example embodiments disclosed herein relate to the stabilization of the orthoconic state in orthoconic antiferroelectric liquid crystal devices. According to some of the example embodiments, the stabilization may be obtained by tuning a device cell as well as material parameters. The orthoconic state may be stabilized by means of the cell surfaces, electric fields, and/or polymer-stabilization, and combinations thereof, under selected conditions. The example embodiments presented herein advances several new working modes as well as new types of applications of orthoconic antiferroelectric liquid crystals.


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