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:
May. 12, 1998
Filed:
Jun. 27, 1995
Applicant:
Inventors:
Alan Cavallerano, Ossining, NY (US);
Claudio Ciacci, White Plains, NY (US);
Assignee:
Philips Electronics North America Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ; G09G / ; G09G / ;
U.S. Cl.
CPC ...
345 85 ; 345 89 ; 345148 ;
Abstract
In a matrix display of light reflecting elements, each element is duty cycle modulated into one of two states represented by successive bits of a digital display code to produce a luminance level represented by the code. In order to correct a visual artifact which occurs when the human eye views the element during only part of the modulation cycle for the code, the element is repeatedly sequentially activated for short periods into optical states represented by the most significant bits of the code.