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:
Apr. 08, 2014
Filed:
Apr. 26, 2012
Donald R. Diehl, Rochester, NY (US);
Thomas Welter, Webster, NY (US);
Erica N. Montbach, Kent, OH (US);
J. William Doane, Kent, OH (US);
Nithya Venkataraman, Kent, OH (US);
Donald R. Diehl, Rochester, NY (US);
Thomas Welter, Webster, NY (US);
Erica N. Montbach, Kent, OH (US);
J. William Doane, Kent, OH (US);
Nithya Venkataraman, Kent, OH (US);
Kent Displays Inc., Kent, OH (US);
Abstract
A liquid crystal composition comprising a chiral dopant compound represented by the following formula: wherein:R1, R2 are independently aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic or heterocyclic ring;R3 and R4 are independently hydrogen, halogen, cyano, alkoxy, NHCOR7, NHSO2R7, COOR7, OCOR7, aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine with either R1 or R2 to form a carbocylic or heterocyclic ring;R5 and R6 are independently hydrogen, CH2, CH, alkyl or aryl either substituted or unsubstituted, COOR7, or combine with L to form a carbocyclic or heterocyclic ring;R7 is aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl or heterocyclic all either substituted or unsubstituted;L is the non-metallic elements required to form a carbocyclic or heterocyclic ring, or a single bond or a double bond;m is 1-3;n is 0-12.