Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1997-09-18
2000-02-29
Patel, Ashok
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
345 55, 345 75, 345 87, 359308, 359614, H01J 2900, G09G 320
Patent
active
060313285
ABSTRACT:
Cathode electrodes in a plurality of rows are arranged parallel with one another on a glass substrate. Very small cold cathodes of conical shape are arranged in matrix on the cathode electrodes. An insulating layer (ITO film) having cylindrical slots surrounding cold cathodes is formed above the glass substrate and the cathode electrodes. Gate electrodes in a plurality of columns are formed on the insulating layer in the direction perpendicular to the extension of the cathode electrodes. An intersection between a cathode electrode and a gate electrode corresponds to a pixel. A glass plate is provided above the gate electrodes. An anode electrode is provided entirely on the surface of the glass plate facing the cold cathodes. A phosphor member for each pixel is formed on the surface of the anode electrode facing the cold cathodes. Thus, the light source for emitting light for each pixel is formed. A well-known liquid crystal display panel for controlling (modulating) an amount of transmission light for each pixel is provided above the light source.
REFERENCES:
patent: 5483118 (1996-01-01), Nakamoto et al.
patent: 5727976 (1998-03-01), Nakamoto et al.
patent: 5786656 (1998-07-01), Hasegawa et al.
patent: 5789856 (1998-08-01), Itoh et al.
P. Vaudaine, et al. "Microtips" Flourescent Display, IEDM Technical Digest, (1991), pp. 197-200.
Kabushiki Kaisha Toshiba
Patel Ashok
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