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. 17, 1989
Filed:
Feb. 03, 1988
Bak G Yong, Halle, DD;
Barth Petra, Halle, DD;
Demus Dietrich, Halle, DD;
Joachimi Detlev, Halle, DD;
Barbara Kampa, Halle-Neustadt, DD;
Saskia Kohler, Halle-Neustadt, DD;
Kristine Mohr, Halle-Neustadt, DD;
Reinhard Paschke, Halle-Neustadt, DD;
Gerhard Pelzl, Halle-Neustadt, DD;
Ulrich Rosenfeld, Halle, DD;
Wolfgang Schafer, Potsdam, DD;
Klaus-Dieter Scherf, Halle, DD;
Carsten Tschirske, Halle, DD;
Wolfgang Weissflog, Halle-Neustadt, DD;
Horst Zaschke, Halle, DD;
Abstract
Fast-switching displays with memory properties are provided, which can display digits, symbols, and images, and which contain as chemically and thermally stable ferroelectric liquid crystalline substances, according to the invention, liquid crystalline derivatives which contain a chiral alkyl halide residue corresponding to the general formula ##STR1## are used in mixtures of one another as well as in conjunction with other liquid crystalline or non-crystalline liquid substances.