Patent ID: 7012582

Claim:
A field emission display comprising; a faceplate; a backplate spaced apart from the faceplate; a volume formed in between the faceplate and the backplate, the volume maintained as a vacuum; a cathode having a cathode substrate and active cathode regions on the cathode substrate, at least a portion of the cathode substrate sealed within the volume; and an anode including phosphor materials and sealed within the volume; wherein a thickness of the faceplate and a thickness of the backplate are sufficient to prevent deformation of the faceplate and the backplate across the dimensions of the faceplate and the backplate due to the vacuum such that spacers are not needed within the volume in order to maintain a uniform separation between the anode and the active cathode regions in the vacuum; wherein the volume comprises: a first portion in between the cathode substrate and the anode; and a second portion in between the cathode substrate and the backplate, the second portion continuous with the first portion; wherein the second portion is larger than the first portion.