Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-03-01
2005-03-01
Nguyen, Matthew V. (Department: 2838)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C323S268000
Reexamination Certificate
active
06862010
ABSTRACT:
A method controls voltage of a matrix structure electron source. The method includes setting the emission of electrons by applying potentials on the selected line and column(s) at a value allowing this emission, maintaining these potentials at their value throughout the duration of the emission, carrying out a sampling and analog memorisation of the emission current of each pixel of the column(s) at the start of the emission time, and using another current supplied by a current generator that is proportional to the value of the measured emission current circulating the column(s); and measuring the quantity of charge delivered, during all or part of the remaining line time, by each current generator, and when this quantity reaches a required value, commuting the potential of the column associated to the current generator to a value that ensures the blocking of the emission of electrons of the pixel of this column.
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Nicolas Pierre
Sarrasin Denis
Commissariat a l''Energie Atomique
Nguyen Matthew V.
Thelen Reid & Priest LLP
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