Invention Grant
- Patent Title: Low work function emitters and method for production of FED's
- Patent Title (中): 具有低功函数发射极的场发射显示
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Application No.: US09489286Application Date: 2000-01-21
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Publication No.: US07492086B1Publication Date: 2009-02-17
- Inventor: David A. Cathey , Surjit S. Chadha , Behnam Moradi
- Applicant: David A. Cathey , Surjit S. Chadha , Behnam Moradi
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: TraskBritt
- Main IPC: H01J1/02
- IPC: H01J1/02 ; H01J63/04

Abstract:
According to one aspect of the invention, a field emission display is provided comprising: an anode; a phosphor screen located on the anode; a cathode; an evacuated space between the anode and the cathode; an emitter located on the cathode opposite the phosphor; wherein the emitter comprises an electropositive element both in a body of the emitter and on a surface of the emitter. According to another aspect of the invention, a process for manufacturing a FED is provided comprising the steps of forming an emitter comprising an electropositive element in the body of the tip; positioning the emitter in opposing relation to a phosphor display screen; creating an evacuated space between the emitter tip and the phosphor display screen; and causing the electropositive element to migrate to an emission surface of the emitter.
Information query