Patent ID: 7282851

Claim:
A display device comprising: a back substrate having a plurality of cathode lines which extend in a first direction and are juxtaposed in a second direction which crosses the first direction, and a plurality of control electrodes, which extend in the second direction, are juxtaposed in the first direction, and are insulated from the cathode lines, on an inner surface thereof; and a front substrate which is arranged to face the back substrate in an opposed manner with a set distance therebetween, and which has phosphors and an anode which constitute a display region, on an inner surface thereof; wherein distance holding members for maintaining the set distance between the back substrate and the front substrate are provided inside of the display region; wherein the phosphors are constituted of three colors, and the cathode lines are formed into groups each consisting of three cathode lines corresponding to the three colors; wherein the plurality of cathode lines include line portions, which extend in the first direction, and cathode portions which are wider in the second direction than the line portions; and wherein electron sources are formed on the cathode portions.