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:
Oct. 17, 2006
Filed:
Nov. 14, 2001
Céline Mas, Poisat, FR;
Gilles Troussel, Grenoble, FR;
Eric Benoit, Quaix en Chartreuse, FR;
STMicroelectronics S.A., Montrouge, FR;
Abstract
The invention concerns a drive circuit for a plasma panel consisting of cells arranged at the intersections of lines and columns, comprising, for each column of the panel, a column drive unit () for selecting the column by applying a voltage window, the column having a different capacitance (C) depending on whether or not the neighboring columns are selected, each drive unit () comprising first elements (T, C, CS) for changing the capacitance in a first predetermined time interval during the low-to-high transition of the voltage window, and second elements (T) for discharging said capacitance in a second predetermined time interval during the high-to-low transition of the voltage window, the second elements being controlled on the basis of an estimation of the capacitance obtained from data (Qi−, Qi+) indicating whether or not the neighboring columns of said columns have been selected.