Patent ID: 7221086

Claim:
A display device comprising: a face substrate which has an anode and a fluorescent material on an inner surface thereof; a plurality of cathode lines which extend in a first direction, are juxtaposed in a second direction which crosses said first direction, and has electron emitting sources; control electrodes which are constituted by arranging a plurality of strip-like electrode elements which cross the cathode lines in a non-contact state within a display region, extend in said second direction and are juxtaposed in said first direction, and have electron passing apertures for allowing electrons from the electron emitting sources to pass therethrough toward the face substrate; a back substrate which has said control electrodes and said cathode lines disposed on an inner surface thereof and which faces the face substrate with a given distance therebetween; and a frame body which is inserted between the face substrate and the back substrate and is arranged around the display region to maintain said given distance, wherein the cathode lines have terminal ends that are terminated outside the display region and inside the frame body, and a shield member is inserted between the terminal ends of the cathode lines and the anode, the shield member having an electric potential which is lower than an electric potential of the anode.