Method for fabricating a field emission device
AssigneeSamsung SDI Co., Ltd.
InventorJong-min Kim
Life of this patent
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Abstract
A method for fabricating a field emission device which can display a color image. Anodes to be doped with a color fluorescent film of the same color are connected to each other so that the color fluorescent film can be coated on the anodes of a front surface substrate using an electrophoretic method. An insulating layer is formed between anodes which cross each other to prevent the anodes from contacting each other. It is possible to obtain a cheap and clean fluorescent film by sequentially forming the fluorescent films of the respective colors by the electrophoretic method. The field emission device can be easily packaged since the anodes of the front surface substrate on which the fluorescent film is formed can easily contact the external terminals of the rear surface substrate.
Claims8
A method for fabricating a field emission device, comprising the steps of:
- (a) forming cathodes, microtips, an insulating layer, and a gate on a rear surface substrate;
- (b) forming external terminals corresponding to red, green, and blue image signals at one edge of the rear surface substrate;
- (c) forming anodes arranged into three groups of strips, contact wiring for contacting the anodes of each group, and external terminals corresponding to the contact wiring on a front surface substrate;
- (d) coating each group of anodes with a different fluorescent film from the group of red, green, and blue fluorescent films by an electrophoretic method;
- (e) contacting the external terminals of the front surface substrate to the external terminals of the rear surface substrate with spacers arranged between the front surface substrate and the rear surface substrate;
- and
- (f) sealing the edges of the front surface substrate and the rear surface substrate and vacuumizing the sealed inside.
Dependencies are inferred from the claim text.