Patent attributes
An electron emission device and an electron emission display, in which a driving electrode is protected from being damaged when an overcurrent instantly flows therein. The electron emission device includes a first driving electrode disposed on a plate, a second driving electrode disposed on the plate and insulated from the first driving electrode, and an electron emission portion connected to the first driving electrode. The electron emission portion emits electrons in response to a voltage difference between the first driving electrode and the second driving electrode. The second driving electrode has at least two separate portions, and the at least two separate portions are coupled to each other by at least one band having a predetermined width adapted to electrically isolate at least one portion of the second driving electrode from the electron emission portion when an overcurrent is applied between the second driving electrode and the electron emission portion.
