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...

2007-05-22

2007-05-22

Roy, Sikha (Department: 2879)

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

C313S495000, C313S309000, C313S311000, C313S336000

Reexamination Certificate

active

10934591

ABSTRACT:
A method and a structure for a converging-type electron-emission source of a field-emission display are disclosed. 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:
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patent: 6972513 (2005-12-01), Shiratori et al.
patent: 2004/0251813 (2004-12-01), Okai et al.

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