Patent ID: 7498732

Claim:
An electron emission device comprising: a plate; at least one first electrode on the plate and extending in a first direction; at least one second electrode, extending in a second direction and insulated from the at least one first electrode; an electron emitter connected to the at least one second electrode, the electron emitter having an electron emitter width; a third electrode having a hole through which electrons emitted from the electron emitter pass, the hole having a hole width; and a frit between the third electrode and the second electrode, wherein a ratio of the hole width in the second direction to the electron emitter width in the second direction is equal to or more than about 0.5 and equal to or less than about 1.0, wherein the plate, the at least one first electrode, the at least one second electrode and the electron emitter form a plate assembly, and wherein the frit affixes the third electrode to the plate assembly.