The difficulties in fabricating active matrix liquid crystal displays
(AMLCD), combined with the size limitations, low yields, very high cap
ital investment, and consequent high production cost, have spurred dev
elopment of alternative display technologies such as plasma display pa
nels, electroluminescent displays, and field emission displays (FEDs).
FED panels use color-emissive phosphors and thus are energy efficient
and bright with saturated colors similar to a cathode ray tube, Six-i
nch diagonal monochrome and color field emission display prototypes em
ploying Spindt-type [1] field emitters have been demonstrated [2], but
the production of large-area panels using this technology is problema
tic because of the need to fabricate a high density of identical sharp
tips. This approach suffers from some of the same cost and yield issu
es as AMLCDs.