Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-10-07
1999-12-21
Luu, Matthew
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
313309, 315167, G09G 322
Patent
active
060055405
ABSTRACT:
A plurality of electron-emitting devices carried on a device substrate are arranged vis-a-vis an acceleration electrode carried on a face plate. The device substrate and the face plate, together with side walls disposed therebetween, constitute an envelope the inner space of which is kept under vacuum. A number of spacers are also disposed between the device substrate and the face plate within the inner space. The electric potential V.sub.a applied to the acceleration electrode, the distance l between the electron-emitting devices and the corresponding respective spacers, and the distance d between the electron-emitting devices and the acceleration electrode satisfy the relationship, V.sub.a .multidot.l.sup.2 /d.sup.2 >.vertline..DELTA.V.sub.sat .vertline./(2.multidot..alpha..multidot..beta.), where .alpha. and .beta. are constants determined from several factors and .DELTA.V.sub.sat is the potential deviation of the spacer surface under charged conditions from that under uncharged conditions.
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Mitsutake Hideaki
Shinjo Katsuhiko
Canon Kabushiki Kaisha
Frenel Vanel
Luu Matthew
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