Method and structure of converging electron-emission source...

Details Method and structure of converging electron-emission source... Method and structure of converging electron-emission source...

2007-09-18

2007-09-18

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

C313S495000, C313S497000, C313S311000, C315S169100

Reexamination Certificate

active

11465305

ABSTRACT:
In a converging-type electron-emission source of a field-emission display, a substrate is provided and a silver paste is used to form a first electrode layer on the substrate by the process such as thick-film photolithography or screen-printing. A carbon nanotube is formed on the first electrode layer by thick-film photolithography or screen-printing, and a second electrode is formed on the carbon nanotube. A third electrode layer is formed on the first electrode layer around the second electrode layer by thick-film photolithography or screen-printing. The third electrode layer is higher than the second electrode layer, such that a converging exit is formed around the second electrode layer. A sintering step is performed. When the electron beam is generated, the electron beam is concentrated at the center of the converging exit to impinge a phosphor layer of an anode without causing gamut.

REFERENCES:
patent: 6617798 (2003-09-01), Lee et al.
patent: 6922014 (2005-07-01), Oh et al.
patent: 6972513 (2005-12-01), Shiratori et al.
patent: 2002/0011769 (2002-01-01), Choi et al.
patent: 1313122 (2003-05-01), None

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