Field emission display

Patent 6172456 Issued on January 9, 2001. Estimated Expiration Date:

April 5, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 286267 filed on 04/05/1999

US Classes:

313/495, Vacuum-type tube313/336, Point source cathodes313/496, Phosphor on anode segments313/497With accelerating or control electrode

Examiners

Primary: Patel, Nimeshkumar D.
Assistant: Gerike, Matthew J.

Attorney, Agent or Firm

Wells, St. John, Roberts, Gregory & Matkin P.S.

International Class

A01J 063/00

Abstract

A flat-panel field emission display comprises a luminescent faceplate, a rigid backplate, and an interposed or sandwiched emitter or cathode plate. A positioning spacer or connector ridge is formed on the rear surface of the faceplate to space the cathode plate a fixed distance behind the faceplate. A peripheral seal is formed between the faceplate and the backplate. The faceplate, backplate, and peripheral seal define an evacuated internal space which contains the cathode plate. The backplate is spaced behind the cathode plate to create a rearward vacuum space in which a getter is located.

Other References

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