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:
May. 22, 1990
Filed:
Apr. 05, 1988
Applicant:
Inventors:
Christian Bahr, Berlin, DE;
Gerd Heppke, Berlin, DE;
Detlef Lotzsch, Berlin, DE;
Hans-Rolf Dubal, Konigstein, DE;
Claus Escher, Muhltal, DE;
Dieter Ohlendorf, Liederbach, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 3503 / ; 3503 / ;
Abstract
Use of compounds or mixtures of compounds which have a chiral, orthogonal, more highly ordered smectic phase in the range of said phase as switching or indicating medium. Compounds which have a chiral, orthogonal, more highly ordered smectic phase, in particular an S.sub.B * or an S.sub.E * phase, can be used in the range of said phase or phases as indicating or switching medium in electro-optical indicating or switching components (devices) which are based on the exploitation of the electroclinic effect.