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:
Sep. 21, 1993
Filed:
Nov. 21, 1991
Applicant:
Inventors:
Frank J Di Santo, North Hills, NY (US);
Denis A Krusos, Lloyd Harbor, NY (US);
Assignee:
Copytele, Inc., Huntington Station, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345107 ; 359296 ;
Abstract
Method for operating an electrophoretic display panel in a hold mode that reduces power required , increases display life and improves performance which entails applying a voltage to the anode electrode structure during the 'hold' mode of operation which is substantially lower in amplitude than the voltage applied to the anode structure during a 'write' mode of operation.