Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1992-11-13
1994-07-19
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
315168, 313584, G09G 310
Patent
active
053312520
ABSTRACT:
A plasma display panel includes anodes and barrier ribs formed on an upper face plate, first sustaining electrodes which are formed on a lower rear plate, and covered with a dielectric material, and cathodes which are formed on the dielectric material and connected to the respective capacitors via a common node, thereby serving as second sustaining electrodes. In a driving method of the panel, the first sustaining electrode is supplied with a pulse varying from ground potential to a first positive potential, from the first positive potential back to ground potential, and then from ground potential to a first negative potential, the second sustaining electrode is supplied with a pulse varying from ground potential to the first negative potential, from the first negative potential back to ground potential, and then from ground potential to the first positive potential, the anode is supplied with a writing pulse varying from a third positive potential to a fourth positive potential for data writing, when the pulses of the first and second sustaining electrodes are both at ground potential and the cathode is supplied with a negative scanning pulse varying from a third negative potential to a fourth negative potential, and the cathode is supplied with a negative erasing pulse having an amplitude equal to the difference between the third and fourth potentials, for erasing the written data after a predetermined time has elapsed. Thus, stable memory operation becomes possible.
REFERENCES:
patent: 4665345 (1987-05-01), Shionoya et al.
patent: 4754203 (1988-06-01), Murakami
patent: 4999541 (1991-03-01), Kim et al.
patent: 5210469 (1993-05-01), Kim
Pascal Robert J.
Philogene Haissa
Samsung Electron Devices Co. Ltd.
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