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. 06, 1997
Filed:
Jun. 06, 1995
Applicant:
Inventor:
Antonius G Verhulst, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 97 ; 345100 ; 345 94 ;
Abstract
In a ferro-electric liquid crystal display, in which the pixels in one row first receive a reset or 'blanking' signal, this reset signal is presented by providing the counter electrode, prior to selection, with a reset voltage while simultaneously selecting the row of pixels to be reset. When a single counter electrode is used, it switches to a reset voltage during each selection period. If the counter electrode is divided into sub-strips, these strips switch to a reset voltage once per picture period.