US 2018/0158640 A1 · FIELD EMISSION APPARATUS

Abstract

Disclosed is a field emission apparatus. The apparatus comprises a cathode electrode and an anode electrode spaced apart from each other, an emitter on the cathode electrode, a gate electrode between the cathode and anode electrodes and including at least one gate aperture overlapping the emitter, and an electron transmissive sheet on the gate electrode and including a plurality of fine openings overlapping the gate aperture.

Claims14

Dependent claims

A field emission apparatus, comprising:

a cathode electrode and an anode electrode spaced apart from each other;
an emitter on the cathode electrode;
a gate electrode between the cathode and anode electrodes and including at least one gate aperture overlapping the emitter;
and
an electron transmissive sheet on the gate electrode and including a plurality of fine openings overlapping the gate aperture.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/835,073Filed 7 Dec 2017

Priority

KR 10-2016-01661557 Dec 2016

Published

7 Jun 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H01J 29/62
Arrangements for focusing or reflecting ray or beam: electrostatic lenses
H01J 29/085
Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted or stored, e.g.…
H01J 35/065
Cathodes: field emission, photo emission or secondary emission cathodes
H01J 35/147
Arrangements for concentrating, focusing, or directing the cathode ray: spot size control

Field emission apparatus

Life of this patent

Field emission apparatus

Life of this patent

Abstract

Claims14