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:
Jun. 13, 1989
Filed:
Oct. 13, 1987
Applicant:
Inventor:
Rolf Zondler, Stuttgart, DE;
Assignee:
Nokia Graetz GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ;
Abstract
A liquid crystal cell is disclosed in which the cell walls facing the liquid crystal material are provided with alignment layers of organic material. This material consists of polymer chains with side chains. The ends of the side chains interact with the liquid crystal molecules. The side chains are shorter than the liquid crystal molecules. By suitable choice of the length of the side chains, the tilt angle can be set. It is also possible to provide alternately different side chains one of which interacts with one end of the liquid crystal molecule, while the neighboring side chain interacts with the other end of the same molecule.