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:
Apr. 21, 1987
Filed:
Jul. 12, 1984
Applicant:
Inventors:
Robert G Mankedick, Longwood, FL (US);
Syed Naseem, Longwood, FL (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350332 ; 350346 ;
Abstract
Liquid crystal displays having improved apparent viewing cones are disclosed. The displays are activated by an electrical energizing signal which comprises an activation signal portion and a superimposed A.C. voltage signal by which the apparent viewing cone angles of the displays are increased.