| 摘要 |
An electron emission device includes: a substrate; a gate electrode that has an opening and is disposed on the substrate; an emitter that is formed in the opening; and an anode electrode that is disposed at a predetermined interval from the emitter. In this device, a convergence electric field by which electrons to be emitted from the emitter is converged toward the anode electrode side is formed, the convergence electric field has equipotential surface whose inclination increases according as it approaches the emitter, and a relationship represented by expression below is satisfied:
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