Field emission device and field emission display using the...

Details Field emission device and field emission display using the... Field emission device and field emission display using the...

2005-08-02

2009-02-10

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S310000, C313S497000

Reexamination Certificate

active

07489070

ABSTRACT:
A field emission device and a field emission display using the same. The field emission device includes a concave cathode electrode and an emitter formed at a center thereof. A gate electrode and a focusing gate electrode above the gate electrode serve to focus and refocus the electron beam emanating from the emitter to produce a better focused electron beam leading to improved color purity.

REFERENCES:
patent: 5920151 (1999-07-01), Barton et al.
patent: 2004/0080260 (2004-04-01), Park et al.
patent: 2004/0104668 (2004-06-01), Lee et al.
patent: 2004/0160161 (2004-08-01), Song et al.

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