Field emission device with switch and current source in the emitter circuit

Patent 5404081 Issued on April 4, 1995. Estimated Expiration Date:

January 22, 2013. 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

Assignee

Motorola, Inc.

Application

No. 007685 filed on 01/22/1993

US Classes:

315/169.1, Diverse-type energizing or bias supplies to different electrodes315/167, Plural cathode and/or anode load device315/169.3, Electroluminescent device315/349Discharge control discharge device load

Examiners

Primary: Lee, Benny
Assistant: Philogene, Haissa

Attorney, Agent or Firm

Parsons; Eugene A.

International Class

G09G 003/10

Abstract

An integrally formed field emission device and electron emission control circuit wherein electron emission is controlled by a current source semiconductor circuit and a semiconductor switch coupled such that upon application of switching information to the switch the field emission device is enabled to an ON mode for the time duration of the information and during which time the current source provides a determined electron current to be subsequently emitted by the emitter of the field emission device. A field emission device array and electron emission control circuits is provided to effectively control electron emission for each field emission device in the array.