Electron lens and structure for a cold cathode of a cathode...

Details Electron lens and structure for a cold cathode of a cathode... Electron lens and structure for a cold cathode of a cathode...

2005-07-05

2005-07-05

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

C313S336000

Reexamination Certificate

active

06914373

ABSTRACT:
A cathode ray tube according to the present invention include a cold cathode electron gun, the cold cathode electron gun including a cold cathode array for emitting electrons through field emission, a gate electrode for controlling the field emission, a first selective electrode provided around the cold cathode array and the gate electrode, and a second selective electrode opposing the first selective electrode, and the second selective electrode is adapted to have a lower potential than the gate electrode and the first selective electrode. In accordance with this configuration, the divergence of electron beams emitted from any positions in the cold cathode array can be converged uniformly upon removing electron beams emitted at a great emission angle. This allows the electron beams thereafter to be made narrower by an electrostatic lens. As a result, the present invention can provide a cathode ray tube capable of forming a high-resolution image.

REFERENCES:
patent: 5514847 (1996-05-01), Makishima et al.
patent: 5734223 (1998-03-01), Makishima et al.
patent: 5850120 (1998-12-01), Okamoto
patent: 5877594 (1999-03-01), Miyano et al.
patent: 5894187 (1999-04-01), Tomihari
patent: 5929557 (1999-07-01), Makishima et al.
patent: 5977696 (1999-11-01), Okamoto
patent: 6121725 (2000-09-01), Grand-Clement et al.
patent: 6236156 (2001-05-01), Ito
patent: 6307309 (2001-10-01), Okamoto et al.
patent: 0 989 580 (2000-03-01), None
patent: 9-283009 (1997-10-01), None
patent: 2000-76987 (2000-03-01), None

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