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:
Jul. 27, 1993
Filed:
Nov. 20, 1992
Applicant:
Inventors:
Claus Escher, Muhltal, DE;
Wolfgang Hemmerling, Sulzbach, DE;
Gerhard Illian, Frankfurt am Main, DE;
Takamasa Harada, Oberursel, DE;
Mikio Murakami, Kakegawa, JP;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359104 ; 359 99 ; 359100 ;
Abstract
What is described is a surface stabilized ferroelectric liquid crystal display with a layer thickness of 1 to 10 .mu.m containing a ferroelectric liquid crystal mixture having a high spontaneous polarization of P.sub.s greater than 20 nC.multidot.cm.sup.31 2 and a natural helical pitch of less than one half of the layer thickness.