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. 06, 1981
Filed:
Feb. 13, 1979
Applicant:
Inventors:
Hans-Joachim Deutscher, Halle, DD;
Herrmann Schubert, Nehlitz, DD;
Christina Seidel, Halle, DD;
Dietrich Demus, Halle, DD;
Horst Kresse, Halle, DD;
Assignee:
VEB Werk fur Fernsehelektronik Berlin im VEB Kombinat Mikroelektronik, Berlin-Oberschoneweide, DD;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; G02F / ;
U.S. Cl.
CPC ...
25229963 ; 252408 ; 2604 / ; 260463 ; 350349 ; 3503 / ; 3503 / ; 560 61 ; 560 62 ; 560 65 ; 560 73 ; 560106 ; 560107 ; 560126 ; 560-1 ;
Abstract
The invention describes nematic compositions for electrooptical devices for modulation of the transmitted or incident light and for the rendition of numbers, symbols and images as orientation in the spectroscopy and gas chromatography. The compositions comprise, liquid crystalline compounds such as dyestuffs and at least one of the compound having the following general formula: ##STR1## wherein ##STR2##