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:
Mar. 02, 2004
Filed:
Dec. 01, 2000
Hassan Sahouani, Hastings, MN (US);
Kim M. Vogel, Lake Elmo, MN (US);
Mark S. Schaberg, Maplewood, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An alignment structure useful in a liquid crystal display device comprising a substrate having disposed thereon an oriented layer of a chromonic liquid crystalline material, wherein the chromonic liquid crystalline material comprises a chromonic material, a pre-tilt additive, and/or a cross-linking agent. The structure can be made by coating the chromonic liquid crystalline material onto the substrate and then drying or curing the coated substrate. The alignment structure can also include one or more polarizing dyes or other additives and can thus be made to perform polarizing, retarding and/or color filtering functions in addition to alignment and orientation functions. Liquid crystal displays containing such alignment structures and methods of making such displays are also described.