Patent ID: 7280088
Filing Date: 2007-10-09
Classification: G09G

Abstract:
1. Process for control of an electron source with a matrix structure, this source comprising at least one addressing row and at least one addressing column, the intersection of which defines one or several emission zones called pixels and in which the electrons are supplied by the column, this process being a sequential process characterized in that: initially, the emission of electrons is triggered by the application of potentials on the selected row and the column(s), said potential having a value that will enable this emission, and then the potential of the column(s) is maintained equal to this value throughout the duration of the emission, while the charge quantity emitted by the pixel(s) from the said column(s) is measured within the column(s) at the same time, and later, when the charge quantity measured on a column reaches a required charge quantity, the potential of this column is switched to a value that blocks emission of electrons.