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:
Dec. 15, 1992
Filed:
Apr. 20, 1992
Applicant:
Inventors:
Stefan Brosig, Stuttgart, DE;
Hansjorg Wirsig, Kornwestheim, DE;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359 76 ; 359 78 ; 427162 ; 427355 ; 427444 ; 428-1 ;
Abstract
In a process for treating an organic orientation layer on a substrate plate for a liquid crystal cell, the orientation layer for causing the orientation is rubbed in the conventional way in a specified direction. Rubbing is then performed in the opposite direction, but with a weaker rubbing pressure. Rubbing in the opposite direction with weak pressure leads to an increase of some degrees in the pretilt angle, and this is essentially independent of the material used for the orientation layer.
Brosig, Stefan. (1992). Process for increasing pretilt angles in nematic liquid crystal cells (U.S. Patent No. 5172255). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5172255
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile