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. 18, 1984
Filed:
Apr. 30, 1981
Applicant:
Inventor:
Rudolf Caramel, Hofheim, DE;
Assignee:
VDO Adolf Schindling AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350337 ; 3503 / ; 350399 ;
Abstract
A passive electro-optical display element for the representation of information, having two glass plates spaced apart from each other and forming a chamber therebetween, on the chamber side of each plate there being provided a transparent electrode support and the chamber being filled with a liquid-crystal substance, while polarizers are arranged on the outer surfaces of the plates. The surface of the polarizer on the viewing side of the display element facing the observer and away from the glass plate is formed with a plurality of depressions of irregular structure. A reflector is disposed on the polarizer at the opposite side of the display element.