Patent ID: 7545091

Claim:
An electron emission device, comprising: first electrodes arranged on a substrate in a direction of the substrate; an insulating layer arranged on an entire surface of the substrate and covering the first electrodes; second electrodes arranged on the insulating layer and perpendicular to the first electrodes; and electron emission regions respectively connected to one of the first and the second electrodes; wherein lateral edges of the first electrodes and lateral edges of the second electrodes respectively cross each other; wherein the lateral edges of the first electrodes are respectively inclined with respect to the lateral edges of the second electrodes in at least one region thereof where the lateral edges of the first electrodes cross the lateral edges of the second electrodes; and wherein each first electrode has a predetermined width, and each second electrode has a variable-width portion at said at least one region thereof where the lateral edges of the first electrodes cross the lateral edges of the second electrodes.