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:
Oct. 23, 1990
Filed:
Jul. 13, 1988
Applicant:
Inventors:
Paul Holmes, Bulkeley, GB;
Alan Nevin, Warrington, GB;
Hermann Amstutz, Mellingen, CH;
Jurgen Nehring, Wettingen, CH;
Assignees:
Imperial Chemical Industries PLC, London, GB;
BBC Brown Boveri Ltd., Baden-Dattwil, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; G02F / ;
U.S. Cl.
CPC ...
2522994 ; 350330 ; 3503 / ; 428910 ; 428521 ;
Abstract
An alignment layer for a liquid crystal display consists at least substantially of a polyphenylene polymer wherein at least 80% of the said polyphenylene polymer is composed of aromatic phenylene rings. The alignment layer is capable of providing a homogeneous alignment of liquid crystal molecules disposed adjacent thereto with a high tilt bias angle.
Quick Actions:
Holmes, Paul. (1990). Liquid crystal devices (U.S. Patent No. 4965017). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4965017
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile