ELECTRON SOURCE DEVICE, ITS MANUFACTURING METHOD AND DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a low-cost and long-life electron source device with a high electron emission capacity.

SOLUTION: The electron source device is provided with a porous insulating layer (for instance, a porous alumina layer) equipped with a number of microholes (nano-holes) arrayed in a vertical direction, a first conductor layer arranged on the face of a opening side of the nano-holes, a conductive layer made inside the nano-holes consisting of a conductor or a semiconductor, and a second conductor layer and a bottom side end part of the nano-holes and the second conductor layer are separated by a barrier layer made of a dielectric. It is so structured that electrons are emitted in a direction contrary to the direction headed from the second conductor layer to the barrier layer by voltage impressed between the first conductor layer and the second conductor layer.

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