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:
Aug. 13, 2013
Filed:
Aug. 04, 2008
Hugues Lebrun, Coublevie, FR;
Gérard Voisin, Saint Medard en Jalles, FR;
Hugues Lebrun, Coublevie, FR;
Gérard Voisin, Saint Medard en Jalles, FR;
Thales, Neuilly sur Seine, FR;
Abstract
An integrated method of detecting an image defect in an LCD screen consists in verifying the consumption of current on a power supply bus of the image display means (row driver, column driver, counter electrode CE), during capacitive charges or discharges of the selection lines Land/or columns Col. The method comprises the integration of a current measurement chain comprising a measurement resistor Rm on the power supply bus and measurementand comparisoncircuits providing outside the screen a detection signal Sd which is processed by an external circuit for safety management.