Patent ID: 7138758
Filing Date: 2006-11-21
Classification: H01J

Abstract:
1. An image forming apparatus comprising: a first substrate having a plurality of electron emitting devices and a wiring for driving the electron-emitting devices; a second substrate disposed in opposition to the first substrate, and having an electroconductive member set at a potential higher than that of the wiring; and a plate shaped spacer disposed along the wiring between the first and second substrates, the spacer being covered with a film of a resistance higher than that of the wiring, the film being connected electrically with the electroconductive member and the wiring, wherein electrical connections between the film and the wiring are formed at a plurality of portions arranged at an interval therebetween along a longitudinal direction of the wiring, and a gap is disposed between the plurality of the portions, wherein the plurality of the portions are arranged at the same intervals, and wherein the electron emitting device adjacent to the spacer is disposed on a position corresponding to a position between the plurality of the portions, so as to be offset at a predetermined length (L) from a position right under an electron impinging position on the second substrate.