Patent ID: 6713953
Filing Date: 2004-03-30
Classification: H01J

Abstract:
A field emission display device comprising:an upper substrate and a lower substrate, each of which has an inner surface facing the other inner surface in a substantially parallel manner; cathode assemblies being formed on the inner surface of the lower substrate, wherein a space exists between two adjacent cathode assemblies; anodes being formed on the inner surface of the upper substrate; black matrices, each having sidewalls and each being formed on the anodes at a location correspondingly above the space between the cathode assemblies; and R, G, and B phosphor elements being formed only adjacent the anode in spaces between the black matrices and only adjacent the surfaces of the sidewalls of the black matrices near the anodes, wherein each phosphor element is correspondingly above one of the cathode assemblies formed on the inner surface of the lower substrate and further wherein the sidewalls adjacent the phosphor element prevent the electrons emitted from the non-corresponding cathode assemblies from illuminating the phosphor element.