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:
Nov. 30, 1993
Filed:
Nov. 25, 1991
Frank J DiSanto, North Hills, NY (US);
Denis A Krusos, Lloyd Harbor, NY (US);
Edward Lewit, Roslyn Heights, NY (US);
CopyTele, Inc., Huntington Station, NY (US);
Abstract
A method for writing data to an EPID display includes loading data for a line of pixels onto the grid lines of the EPID. Instead of writing that single line fully by enabling the associated cathode row with a logical '1' voltage for the time necessary to cause complete pigment particle migration, the associated cathode line and at least the next adjacent cathode line are enabled for a shorter duration than is required for fully writing the lines. The grid is then loaded with data corresponding to the next line of pixels and the set of cathode lines enabled is shifted by one line, such that at least one cathode line previously enabled is enabled for a subsequent time whereby particle migration for writing is made more complete where the grid data is constant from one row of pixels to the next.