Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-10-16
2000-11-07
Zimmerman, Mark K.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 55, 438 26, G09G 322
Patent
active
061443506
ABSTRACT:
It is an object of this invention to provide an electron generating apparatus which is hardly influenced by variations in driving voltage, an image forming apparatus using the electron generating apparatus, and a method of manufacturing and adjusting the same. The row wiring layers of a multi-electron-beam source (300) are sequentially selectively switched by a control circuit (302) and applied with a pulse voltage having a value about 1.05 to 1.5 times the maximum value of a normal driving voltage from a DC voltage source (301). The characteristics of all surface conduction electron-emitting devices of the multi-electron-beam source (300) are shifted to the high potential side. With this process, even when the driving voltage becomes high due to superposition of noise and the driving voltage, variations in electron-emitting characteristics caused by the voltage shift characteristics of the surface conduction electron-emitting devices can be prevented.
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Fujii Akira
Suzuki Hidetoshi
Yamaguchi Eiji
Canon Kabushiki Kaisha
Nguyen Thu
Zimmerman Mark K.
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