Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1993-01-22
1996-02-27
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
313103CM, 313400, 313495, G09G 310
Patent
active
054951461
ABSTRACT:
Planar display devices which have a small thickness and used as a display unit of a television set, a monitor or the like. A control electrode portion for passing electrons through a given electron-passing hole selected from a plurality of electron-passing holes provided on an insulating substrate is formed by coating the insulating substrate with a conductive film and dividing them into a plurality of conductive films as control electrodes. This structure obviates the mesh structure of electrons which are necessary in the case of arranging control electrodes on the insulating substrate, thereby realizing high-definition display devices with improved luminance. In addition, planar display devices provided with a surface insulated substrate produced by forming an insulating film on a conductive substrate having electron-passing holes and a plurality of separate control electrodes arranged on the surface insulated substrate, it is possible to prevent the charge-up effect which obstructs the passage of electron beams and, hence, to enhance the luminance by (1) providing a voltage applying means for applying a predetermined voltage to the conductive substrate, (2) providing a portion at which the conductive substrate is exposed between the adjacent control electrodes, and so on.
REFERENCES:
patent: 4160310 (1979-07-01), Manns
patent: 4719388 (1988-01-01), Oess
patent: 4937491 (1990-06-01), Kauwenberg
patent: 4939413 (1990-07-01), Tomii et al.
German Published Article vol. 31, No. 11, 1978 to Marten.
Tannas, Jr., "Flat-Panel displays and CRT's" Copyright 1985 by Van Nostrand Reinbold Co., pp. 213-216.
Fukuyama Keiji
Hatanaka Yoshinori
Hoshinouchi Susumu
Kobayashi Minoru
Ohira Takuya
Mitsubishi Denki & Kabushiki Kaisha
Pascal Robert J.
Shingleton Michael
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