Patent ID: 7649308

Claim:
An electron emission device comprising: first electrodes on a substrate and extending in a first direction of the substrate; isolation electrodes on a same plane as the first electrodes, each isolation electrode being spaced apart from a respective one of the first electrodes, the isolation electrodes being separately arranged in the first direction as well as in a second direction crossing the first direction; line electrodes placed on a different plane from the first electrodes and the isolation electrodes and located on an insulating layer, wherein the insulating layer is between the substrate and the line electrodes, each of the line electrodes being electrically connected to a respective plurality of the isolation electrodes arranged along the second direction to form a second electrode together with the respective plurality of the isolation electrodes; and electron emission regions on top of the isolation electrodes along peripheral sides of the isolation electrodes proximate to the first electrodes, wherein a distance between the substrate and the line electrodes is larger than a distance between the substrate and the first electrodes as well as a distance between the substrate and the isolation electrodes.