Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-10-09
2007-10-09
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S077000, C345S078000, C345S089000, C345S101000, C345S075200
Reexamination Certificate
active
10332883
ABSTRACT:
Process and device for control of an electron source with matrix structure, regulated by the emitted charge.The invention is applicable to an electron source comprising addressing rows and columns which intersect to define emission areas, the electrons being supplied by the columns. According to this invention, the emission of electrons is triggered by increasing the potential of the columns to a value that will enable preferential emission of unaddressed rows. Then, throughout the emission duration, the potential of columns will be kept equal to this value, while simultaneously making measurements in the columns of the quantity of charges emitted by the pixels in the said columns. Secondly, when the quantity of charges measured on a column reaches a required charge quantity, the potential of this column is switched to a value that will block the emission of electrons.The invention is particularly applicable to flat field emission displays.
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Nicolas Pierre
Sarrasin Denis
Commissariat a l''Energie Atomique
Thelen Reid Brown Raysman & Steiner LLP
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